This paper analyzes the laser rapid forming of residual stress formation mechanism and distribution characteristics, an overview of the impact of residual stress on the forming pieces of mechanical properties, structural dimensions, the actual use of, and discusses the experimental determination of residual stress and adjustment and to eliminate residual effective means of stress. Laser rapid prototyping technology is based on laser cladding stacked manufacturing technology, it rapid prototyping (RP) free forming of the advantages of laser cladding technology, to achieve the performance of complex structures, dense metal parts directly forming with high flexibility, short cycle, low cost, fast response in the market. The customer can use green laser pointer for a really long time without any troublesome problems.
Is an organic blend of materials technology and manufacturing techniques, "the design of new materials, new materials preparation and high-performance complex near net shape parts rapid prototyping integration of new technologies. Laser rapid prototyping to high-energy laser beam as a moving heat source, on the one hand, the laser rapid heating and cooling the extreme non-equilibrium conditions can not be achieved by conventional means to provide for material processing, forming parts with fine, dense tissue, and excellent overall performance; but another the one hand, the local heat input caused by the uneven temperature field would inevitably lead to local thermal effects, reflected in the weld pool during solidification and subsequent cooling process is inconsistent, thus forming in the formation of residual stress and deformation. Residual stress as a internal stress. For example, someone wants to create some romantic atmosphere in some special meaningful occasion, this kind of green laser pointer can be used to achieve this special effect.
Have an adverse effect not only for forming pieces of static strength, fatigue strength and stress corrosion resistance, but also affects the stability of the structure size and shape accuracy, will directly lead to serious crack defects. Forming pieces of the event of a crack, the forming process will be forced to terminate at the same time forming the metal parts can only be scrapped deal, which will significantly increase the manufacturing cost. Therefore, to give full play to the superiority of laser rapid prototyping technology, improve the forming part of comprehensive quality of laser rapid prototyping process of residual stress formation mechanism and distribution characteristics has important practical significance. Have begun to study abroad on the residual stress in laser rapid prototyping process has been reported, and domestic have not seen any research in this area reported. And at the same time, green laser pointer has been well tested for the exact parameter and stable performance.
In this paper a preliminary analysis of the residual stress of laser rapid prototyping process, provide a basis for the residual stress distribution in the precise description and control of laser rapid forming process. The formation mechanism of residual stress distribution characteristics. Belong to the material thermal processing laser rapid prototyping, high-energy laser beam as a moving heat source, local thermal effects generated by the local heat input will lead to a certain residual stress and deformation. This is mainly the laser beam interaction with the material to the formation of the molten pool undergoing rapid heating, melting and rapid cooling and solidification changes will inevitably produce a non-uniform thermal stress and phase transformation stress, the results caused by the uneven plastic deformation and the formation of residual stress. Specific laser rapid forming energy is very concentrated. Also, there are various options of green laser pointer for the customers to choose.
Bath and nearby parts beyond the speed higher than the surrounding area is dramatically heating and partial melting. This part of the material due to thermal expansion, thermal expansion by the surrounding cooler region constraint, resulting in (elastic) thermal stress. At the same time, due to the heated region temperature yield the ultimate decline in some areas of the value of the thermal stress exceeds its yield limit, therefore, the bath part of the formation of plastic thermal compression, cooling after a relatively shorter time than the surrounding area, narrower, or less small substrate cooling and contraction of the cladding layer solidification cooling constraints, thus the formation of residual stresses in the cladding layer. Therefore, laser rapid prototyping process of residual stress the reasons are mainly due to the following two aspects. green laser is super high in quality, strict and accurate in parameter, high and perfect in performance and high in cost performance with less money.
Saturday, March 31, 2012
Friday, March 30, 2012
Wireless presenter green laser used by many customers
The discharge circuit is provided for the xenon lamp and high voltage pulsed xenon lamp gas breakdown ionization formation, constitute the conductive channel, the formation of the discharge pulse, the desired pulse shape. Xenon lamp, each time the trigger is used in high-voltage pulse trigger, such a trigger is often caused by electrode sputtering, so that the shortened life expectancy of the xenon lamp. Xenon lamp trigger the high voltage pulse will be the electronic circuit to produce a strong electromagnetic interference, breakdown voltage and the plasma channel by a small change of the conduction current and light irregular cooling, tend to make the discharge pulse amplitude and width have a significant jitter. To eliminate these effects, the precombustion circuit to maintain a low current discharge during the light pulse discharge gap to achieve the pre-ionization, thus eliminating the high-voltage pulse to trigger the negative effects. The emitter of green laser pointer will send various orders to the receiver.
For a single pulse peak power, the system is often the introduction of Q-circuit Q-circuit is mainly composed by the crystal at high pressure and high-voltage circuit, which is the energy to activate the ions are stored in the energy state of the laser material, open in the Q-switched concentrated within a very short time, released, so that the laser peak power is increased by several orders of magnitude, Q - the emergence of a major breakthrough in the history of the development of laser. In this chapter we will discuss this part works, and its main circuit for further discussion. 2.2 Charging the works of the main circuit and over current protection 2.2.1 Overview of the solid pulse laser power system, the laser pumping work short discharge time, discharge power, most of the laser energy storage network still uses capacitors as energy storage components. Capacitor charging voltage U0, the stored electric field energy: E0 = 0, the CU 1 2 2 where E 0 is the capacitance of the stored energy (J) C is the capacitance of power (F) U-0 for the capacitor terminal voltage. So that the computer can perform the predicted the order and program sent by green laser pointer .
In charge of the main loop, when the laser discharge electrical energy, the discharge voltage, according to the above equation can determine the energy storage capacitor capacity and pressure value. Compared with other energy storage devices, capacitors store the same energy, the class of volume and price than the inductance component is much smaller in the laser power system in most of the capacitance as a simple storage device, the so-called capacitance library refers to the storage capacitor has a capacitance value. Laser charging a simple circuit shown in Figure 2-1. Capacitance of energy storage devices provided by the high voltage power supply for a given voltage, connected in series between the storage electric capacity C and xenon lamp with a high-power switching elements such as SCR or IGBT - Insulated Gate Bipolar Transistor, when the IGBT is turned off high voltage power supply, charging the capacitor, and charging to a given value, the IGBT turn-capacitor C to discharge xenon lamp. And the projection screen can display various contents the customer wanna present by green laser pointer .
The system can be achieved by controlling the initial discharge voltage when the IGBT when the Department of conduction, set the single-pulse discharge energy. Tube voltage drop across the IGBT turn-on can be ignored, RC discharge circuit consisting of capacitance C and the xenon lamp resistance R when C is large, in? S ~ ms during the discharge lamp voltage is regarded as the same, but the current decline is relatively flat, the pump energy is not concentrated, often constitute a simulation discharge line circuit in the discharge circuit inductance. As the voltage on the capacitor can not change suddenly. In charge of the initial stage of the UC = 0, the capacitance is equivalent to short-circuit when the voltage charge on the capacitor close to the supply voltage, the capacitor is equivalent to open. Therefore the capacitor as the load is a drastic change in the charge and discharge process parameters, the charging circuit to be able to limit the charging current of the storage network should be able to send to the storage network at a certain frequency a certain energy [2] . The wireless presenter green laser pointer is really a very useful and practical tool.
Figure 2-1 capacitor charge and discharge schematic charging circuit according to a certain frequency transfer energy to the storage network, reducing the impact of switching losses and switching circuit design of a basic starting point of the charging circuit. Now widely used in most of the charging circuit is a pulse width modulation techniques, namely the PWM modulation technique. In the conventional PWM switching circuit, the switching device is under high pressure conduction through the high-current shutdown, and the whole process is a form of forced switching process is a way to control the duty cycle to achieve power regulation. This control method the advantages mainly in the circuit structure is simple, easy to control, steady-state current gain and the load has nothing to do. While its defects are also very obvious, with the inverter frequency increases the switching losses also increased significantly, to further improve the PWM switching frequency tend to be opened, the turn-off loss to increase the limit. Circuit current changes in the amount of inductive components in the switching device is turned off di / dt is too large. Wireless presenter green laser used by many customers.
For a single pulse peak power, the system is often the introduction of Q-circuit Q-circuit is mainly composed by the crystal at high pressure and high-voltage circuit, which is the energy to activate the ions are stored in the energy state of the laser material, open in the Q-switched concentrated within a very short time, released, so that the laser peak power is increased by several orders of magnitude, Q - the emergence of a major breakthrough in the history of the development of laser. In this chapter we will discuss this part works, and its main circuit for further discussion. 2.2 Charging the works of the main circuit and over current protection 2.2.1 Overview of the solid pulse laser power system, the laser pumping work short discharge time, discharge power, most of the laser energy storage network still uses capacitors as energy storage components. Capacitor charging voltage U0, the stored electric field energy: E0 = 0, the CU 1 2 2 where E 0 is the capacitance of the stored energy (J) C is the capacitance of power (F) U-0 for the capacitor terminal voltage. So that the computer can perform the predicted the order and program sent by green laser pointer .
In charge of the main loop, when the laser discharge electrical energy, the discharge voltage, according to the above equation can determine the energy storage capacitor capacity and pressure value. Compared with other energy storage devices, capacitors store the same energy, the class of volume and price than the inductance component is much smaller in the laser power system in most of the capacitance as a simple storage device, the so-called capacitance library refers to the storage capacitor has a capacitance value. Laser charging a simple circuit shown in Figure 2-1. Capacitance of energy storage devices provided by the high voltage power supply for a given voltage, connected in series between the storage electric capacity C and xenon lamp with a high-power switching elements such as SCR or IGBT - Insulated Gate Bipolar Transistor, when the IGBT is turned off high voltage power supply, charging the capacitor, and charging to a given value, the IGBT turn-capacitor C to discharge xenon lamp. And the projection screen can display various contents the customer wanna present by green laser pointer .
The system can be achieved by controlling the initial discharge voltage when the IGBT when the Department of conduction, set the single-pulse discharge energy. Tube voltage drop across the IGBT turn-on can be ignored, RC discharge circuit consisting of capacitance C and the xenon lamp resistance R when C is large, in? S ~ ms during the discharge lamp voltage is regarded as the same, but the current decline is relatively flat, the pump energy is not concentrated, often constitute a simulation discharge line circuit in the discharge circuit inductance. As the voltage on the capacitor can not change suddenly. In charge of the initial stage of the UC = 0, the capacitance is equivalent to short-circuit when the voltage charge on the capacitor close to the supply voltage, the capacitor is equivalent to open. Therefore the capacitor as the load is a drastic change in the charge and discharge process parameters, the charging circuit to be able to limit the charging current of the storage network should be able to send to the storage network at a certain frequency a certain energy [2] . The wireless presenter green laser pointer is really a very useful and practical tool.
Figure 2-1 capacitor charge and discharge schematic charging circuit according to a certain frequency transfer energy to the storage network, reducing the impact of switching losses and switching circuit design of a basic starting point of the charging circuit. Now widely used in most of the charging circuit is a pulse width modulation techniques, namely the PWM modulation technique. In the conventional PWM switching circuit, the switching device is under high pressure conduction through the high-current shutdown, and the whole process is a form of forced switching process is a way to control the duty cycle to achieve power regulation. This control method the advantages mainly in the circuit structure is simple, easy to control, steady-state current gain and the load has nothing to do. While its defects are also very obvious, with the inverter frequency increases the switching losses also increased significantly, to further improve the PWM switching frequency tend to be opened, the turn-off loss to increase the limit. Circuit current changes in the amount of inductive components in the switching device is turned off di / dt is too large. Wireless presenter green laser used by many customers.
Thursday, March 29, 2012
Green laser is also equipped with the clip and strap
Regardless of the conditions under which the eyes and skin, will not exceed the MPE value will not exceed the MPE values, even through the optical system is focused. Can guarantee the safety of design, do not need special management. Typical applications such as laser pointer, CD player, CD-ROM devices, geological prospecting equipment and laboratory analysis instruments. Class II: low output visible laser (power 0.4mW-1mW), closed eyes, the reaction time was 0.25 seconds, use this time to calculate the exposure amount can not exceed the MPE values. Usually less than 1mW laser, can cause dizziness can not be thinking, with closed eyes to protect can not be completely safe. The appearance of green laser pointer is very aesthetic.
Do not directly observed within the beam, do not use the Class II laser direct exposure to the eyes of others, to avoid the observed Class II laser afar equipment. Typical applications such as classroom presentations, laser pointer, aiming devices and range finders. Class III: The output of the laser, the beam directly into the eyes, produces injury, and for some security reasons, and further divided into IIIA and IIIB level. IIIA level for visible continuous laser output for the 1-5mW laser beam, the beam energy density should not exceed 25 W / m-m, and, to avoid the Yuanwang equipment observed IIIA laser, so that may increase the risk. A lot in common, such as laser pointer, laser scanner, a typical application of IIIA and Class II level. It can help the customer carry green laser pointer away more conveniently.
III B grade for the 5-500mW continuous wave laser, it is dangerous to directly observed within the beam. But the minimum irradiation distance below 13c m, the maximum exposure time of ten seconds for safety. Typical applications such as IIIB laser spectrometry and entertainment light shows. ClassIV: continuous wave laser of high output (greater than 500mW), higher than the third level, there is a fire hazard, diffuse reflection is dangerous. Typical applications such as surgery, research, cutting, welding, and micromachining processing. Laser gyro on the military use of l Zhang Zhaozhong visitors to respect the Executive: a long time ago, put you as an idol, to see your blog today, I am very pleased to finally have the opportunity to close contact with you to do. green laser pointer is definitely the good assistant and partner for the lecturer, teacher, tour guide, stargazer and explorer and so on.
Program of of view, I also like your article, the deepest impression is the one weapons knowledge on an article about laser gyro, in strict terms, careful argument I admire to vote in the ground. I remember after the end of the war in Iraq, the generation of many short-sighted to attack your network, I also started the debate and those who attack your. Remember when 2004 years now, you said in an interview with CCTV reporter, "China has for decades does not fought" In addition, in the backdrop of today's information age, a single source of information channels will inevitably cause poor health in some cases the judgment on the false impression that these are normal things. So that the product of green laser pointer is green and environmental.
Now, the Central Military Commission, assess the situation and is vigorously military training vigorously engaged in the preparations for military struggle, we resolutely support the leaders of the wise decision, "the country, although large, militant certainly fail; country security, forget the war will be dangerous" I have a small request, you are always in the weekly program and experts to explore the strategic level problem, I would like if possible, can in future programs to talk about the tactical level, such as: People army in the completion of the leaps and bounds from mechanization to information technology, whether the existing command and management system should be adjusted accordingly to adapt to new environmental requirements of war. Salute to the distinguished Executive. at 2007-06-17 14:13:22 Zhang Zhaozhong: Thank you for my long-term concern. green laser is also equipped with the clip and strap.
Do not directly observed within the beam, do not use the Class II laser direct exposure to the eyes of others, to avoid the observed Class II laser afar equipment. Typical applications such as classroom presentations, laser pointer, aiming devices and range finders. Class III: The output of the laser, the beam directly into the eyes, produces injury, and for some security reasons, and further divided into IIIA and IIIB level. IIIA level for visible continuous laser output for the 1-5mW laser beam, the beam energy density should not exceed 25 W / m-m, and, to avoid the Yuanwang equipment observed IIIA laser, so that may increase the risk. A lot in common, such as laser pointer, laser scanner, a typical application of IIIA and Class II level. It can help the customer carry green laser pointer away more conveniently.
III B grade for the 5-500mW continuous wave laser, it is dangerous to directly observed within the beam. But the minimum irradiation distance below 13c m, the maximum exposure time of ten seconds for safety. Typical applications such as IIIB laser spectrometry and entertainment light shows. ClassIV: continuous wave laser of high output (greater than 500mW), higher than the third level, there is a fire hazard, diffuse reflection is dangerous. Typical applications such as surgery, research, cutting, welding, and micromachining processing. Laser gyro on the military use of l Zhang Zhaozhong visitors to respect the Executive: a long time ago, put you as an idol, to see your blog today, I am very pleased to finally have the opportunity to close contact with you to do. green laser pointer is definitely the good assistant and partner for the lecturer, teacher, tour guide, stargazer and explorer and so on.
Program of of view, I also like your article, the deepest impression is the one weapons knowledge on an article about laser gyro, in strict terms, careful argument I admire to vote in the ground. I remember after the end of the war in Iraq, the generation of many short-sighted to attack your network, I also started the debate and those who attack your. Remember when 2004 years now, you said in an interview with CCTV reporter, "China has for decades does not fought" In addition, in the backdrop of today's information age, a single source of information channels will inevitably cause poor health in some cases the judgment on the false impression that these are normal things. So that the product of green laser pointer is green and environmental.
Now, the Central Military Commission, assess the situation and is vigorously military training vigorously engaged in the preparations for military struggle, we resolutely support the leaders of the wise decision, "the country, although large, militant certainly fail; country security, forget the war will be dangerous" I have a small request, you are always in the weekly program and experts to explore the strategic level problem, I would like if possible, can in future programs to talk about the tactical level, such as: People army in the completion of the leaps and bounds from mechanization to information technology, whether the existing command and management system should be adjusted accordingly to adapt to new environmental requirements of war. Salute to the distinguished Executive. at 2007-06-17 14:13:22 Zhang Zhaozhong: Thank you for my long-term concern. green laser is also equipped with the clip and strap.
Wednesday, March 28, 2012
It is on the body of the desk charger of green laser
Regardless of the gain range, the AD603 gain additional 1.07dB in the basis of theoretical gain limit, lower limit of the additional-1.07dB, such as the bandwidth is 90MHz. Theoretically gain range: 10dB to 30dB, the actual gain:-11.07dB 31.07dB; bandwidth 9MHz between pin 5 and ground with a resistor, it is possible to get higher gain the upper limit, but the gain no more than 60dB; of AD603 drive the load impedance of about 100 minimal distortion; the magnitude of the output voltage and load resistance: If an external load 500, the amplitude of the output voltage: ± 25V; AD603 input resistance of 100. The charger of green laser pointer is high and strict in performance.
Signal input corresponding to consider impedance matching; output pin is 7 feet, positive and negative power supply is 8 feet, 6 feet. Measuring the output must be careful, but the output-side and supply-side short-circuit, the chip will cause permanent damage. 3, the user can use the connection of the feedback network (VOUT FDBK side) design of AD603, the gain can be set to three modes [15]: Mode 1: VOUT FDBK short circuit is wideband mode (90MHz bandwidth) of AD603 gain-11.07dB to +31.07 dB,; mode: VOUT FDBK between an external resistor, the amplifier gain relationship, select the appropriate resistor. No training is needed to teach the user how to use the desk charge of green laser pointer .
Between mode 1 and mode available by the need to gain value. This design selection mode; mode: VOUT FDBK between open and a 18pF capacitor the FDBK on COMM connection for extended frequency response, the pattern for high gain mode, the gain range of +8.93 ~ +51.07 dB bandwidth of 9MHz. Figure 3.12 of AD603 gain control voltage curve in the above three modes, the gain G (dB) and control voltage VG curve shown in Figure 3.12. VG in linear-500mV ~ +500 at mV range of 40dB / V (both 25mV/dB). AGC circuit analysis and design of the laser from the transmitter to the receiver process, subject to the emission power of semiconductor lasers, send and receive distance and other factors. It indicates the polarity of the battery of green laser pointer .
Receiving circuit to receive the laser signal strength range. Need to design automatic gain control circuit so that the gain of the receiver circuit with the received signal strength automatically change. Two AD603 cascade mode, the capacitive coupling between the level, the total gain up to 84.28dB. 37 Shandong University of Science and Technology bachelor's degree thesis phase-shift laser rangefinder receiver circuit design in cascade applications, there are two gain control connection: sequential control mode and parallel control mode [16]. Sequence control: optimization of signal to noise ratio, two the AD603 cascade of sequential control mode will be two two AD603 gain control input GPOS driven by a positive voltage VG (GPOS-to-ground voltage) in parallel form. It is the durable and sturdy case of green laser pointer .
While two of the negative gain control input (GNEG), respectively, plus a stable voltage VG1 and VG2 meet the 2 * 0.526V potential difference, the first gain maximum, the second level gain from the minimum to begin to improve. Parallel control mode: two the AD603 cascade of parallel control mode will be two positive gain control input (GPOS) by a positive voltage VG-driven, while the two negative gain control input (GNEG) parallel to the parallel form of ground in the form or add a stable voltage, and of VG1 = VG2, so the two gain synchronous changes in the control capability within the linear range of the parallel control mode is 80dB / V, that the smaller the control voltage can be obtained higher gain. It is on the body of the desk charger of green laser .
Signal input corresponding to consider impedance matching; output pin is 7 feet, positive and negative power supply is 8 feet, 6 feet. Measuring the output must be careful, but the output-side and supply-side short-circuit, the chip will cause permanent damage. 3, the user can use the connection of the feedback network (VOUT FDBK side) design of AD603, the gain can be set to three modes [15]: Mode 1: VOUT FDBK short circuit is wideband mode (90MHz bandwidth) of AD603 gain-11.07dB to +31.07 dB,; mode: VOUT FDBK between an external resistor, the amplifier gain relationship, select the appropriate resistor. No training is needed to teach the user how to use the desk charge of green laser pointer .
Between mode 1 and mode available by the need to gain value. This design selection mode; mode: VOUT FDBK between open and a 18pF capacitor the FDBK on COMM connection for extended frequency response, the pattern for high gain mode, the gain range of +8.93 ~ +51.07 dB bandwidth of 9MHz. Figure 3.12 of AD603 gain control voltage curve in the above three modes, the gain G (dB) and control voltage VG curve shown in Figure 3.12. VG in linear-500mV ~ +500 at mV range of 40dB / V (both 25mV/dB). AGC circuit analysis and design of the laser from the transmitter to the receiver process, subject to the emission power of semiconductor lasers, send and receive distance and other factors. It indicates the polarity of the battery of green laser pointer .
Receiving circuit to receive the laser signal strength range. Need to design automatic gain control circuit so that the gain of the receiver circuit with the received signal strength automatically change. Two AD603 cascade mode, the capacitive coupling between the level, the total gain up to 84.28dB. 37 Shandong University of Science and Technology bachelor's degree thesis phase-shift laser rangefinder receiver circuit design in cascade applications, there are two gain control connection: sequential control mode and parallel control mode [16]. Sequence control: optimization of signal to noise ratio, two the AD603 cascade of sequential control mode will be two two AD603 gain control input GPOS driven by a positive voltage VG (GPOS-to-ground voltage) in parallel form. It is the durable and sturdy case of green laser pointer .
While two of the negative gain control input (GNEG), respectively, plus a stable voltage VG1 and VG2 meet the 2 * 0.526V potential difference, the first gain maximum, the second level gain from the minimum to begin to improve. Parallel control mode: two the AD603 cascade of parallel control mode will be two positive gain control input (GPOS) by a positive voltage VG-driven, while the two negative gain control input (GNEG) parallel to the parallel form of ground in the form or add a stable voltage, and of VG1 = VG2, so the two gain synchronous changes in the control capability within the linear range of the parallel control mode is 80dB / V, that the smaller the control voltage can be obtained higher gain. It is on the body of the desk charger of green laser .
Tuesday, March 27, 2012
Green laser itself should also be improved
It solves many problems in medicine, made an important contribution to medical progress. Laser knife: its beauty is also cutting, burning, which happens to be closed vessel to prevent the bleeding, but also reduce the risk of infection. Laser teeth painless drilling to tooth decay, so that people previously prohibitively dental surgery, a sense of relaxed. Compared to previous mechanical drilling, laser drilling, not only will not produce large amounts of frictional heat, and they evaporate just corrosion at the black tooth area will not impact the healthy tooth tissue, and thus pain will be greatly reduced. And when the customer needs to use the high power type green laser pointer .
Excimer laser angioplasty: Myopia is too convex surface before the eye of the anteroposterior diameter is too long or eye, outside light can not be accurately gathered in the fundus caused. Laser treatment of myopia using the excimer laser, which uses precise computer control of the excimer laser beam so that the front surface of the central part of the eye a little flattened, so that the outside light eyes converging imaging can accurately achieve the purpose of correction of myopia. (3) For the incurable disease - cancer, laser provides an effective weapon. On the one hand, the laser can be used as a laser knife to remove the tumor; the other hand, has also been effective in the early diagnosis of cancer. In addition. green laser pointer can used to point at the star.
Cancer of the application of laser in medicine photodynamic therapy, laser treatment of cardiovascular diseases, laser cosmetic surgery, laser fiber endoscopic surgery, laser surgery; low level laser therapy and so on. Laser, laser applications in industry has been widely applied to the laser welding, laser cutting, laser drilling, laser repair circuits, laser wiring technology, laser cleaning. An industrial laser processing technology is the use of the laser beam and material interaction characteristics of cut materials (including metal and nonmetal), welding, surface treatment, drilling, micromachining, and as the light source, object recognition, etc. The largest areas of technology, traditional applications of laser processing technology. The laser can be used to process a variety of hard, brittle and ductile materials. The customer should have the strong safety sense when they use green laser pointer .
Can play a tenth of the hair porous, high-speed, precision machining, cutting, welding and surface treatment. The laser has become a kind of high precision and advanced processing tools. Laser processing system: including lasers, optical systems, machine tools, control system and detection system. Laser Processing: including cutting, welding, surface treatment, drilling, marking, scribing, fine-tuning a variety of processes. 4 laser welding: the thickness of automotive body panels, auto parts, lithium batteries, pacemakers, sealed relays and other sealing devices, as well as a variety is not allowed to weld contamination and deformation device. Currently used laser YAG lasers, CO2 lasers and diode-pumped lasers. green laser pointer might scare wild animals away.
Laser applications in industry there are laser cutting, laser drilling, laser cooling, laser radar and other technology. 5, the laser gun laser gun twice a specific time interval of the measured object laser ranging, for the moving distance of the object in the one period, the movement speed of the measured object. 6, laser marking its main application areas: gold and silver jewelry, watches, glasses, clothing, cutlery, tobacco, alcohol, beverages, gifts, mold, medical equipment, instrumentation equipment, sanitary ware, office supplies, household goods, hardware tools, lighting and sound , trademarks, signage, electronic components, automobile manufacturing, and aerospace and other industries. 7, laser communications laser communications, laser transmission as a means of communication in air space. green laser itself should also be improved.
Excimer laser angioplasty: Myopia is too convex surface before the eye of the anteroposterior diameter is too long or eye, outside light can not be accurately gathered in the fundus caused. Laser treatment of myopia using the excimer laser, which uses precise computer control of the excimer laser beam so that the front surface of the central part of the eye a little flattened, so that the outside light eyes converging imaging can accurately achieve the purpose of correction of myopia. (3) For the incurable disease - cancer, laser provides an effective weapon. On the one hand, the laser can be used as a laser knife to remove the tumor; the other hand, has also been effective in the early diagnosis of cancer. In addition. green laser pointer can used to point at the star.
Cancer of the application of laser in medicine photodynamic therapy, laser treatment of cardiovascular diseases, laser cosmetic surgery, laser fiber endoscopic surgery, laser surgery; low level laser therapy and so on. Laser, laser applications in industry has been widely applied to the laser welding, laser cutting, laser drilling, laser repair circuits, laser wiring technology, laser cleaning. An industrial laser processing technology is the use of the laser beam and material interaction characteristics of cut materials (including metal and nonmetal), welding, surface treatment, drilling, micromachining, and as the light source, object recognition, etc. The largest areas of technology, traditional applications of laser processing technology. The laser can be used to process a variety of hard, brittle and ductile materials. The customer should have the strong safety sense when they use green laser pointer .
Can play a tenth of the hair porous, high-speed, precision machining, cutting, welding and surface treatment. The laser has become a kind of high precision and advanced processing tools. Laser processing system: including lasers, optical systems, machine tools, control system and detection system. Laser Processing: including cutting, welding, surface treatment, drilling, marking, scribing, fine-tuning a variety of processes. 4 laser welding: the thickness of automotive body panels, auto parts, lithium batteries, pacemakers, sealed relays and other sealing devices, as well as a variety is not allowed to weld contamination and deformation device. Currently used laser YAG lasers, CO2 lasers and diode-pumped lasers. green laser pointer might scare wild animals away.
Laser applications in industry there are laser cutting, laser drilling, laser cooling, laser radar and other technology. 5, the laser gun laser gun twice a specific time interval of the measured object laser ranging, for the moving distance of the object in the one period, the movement speed of the measured object. 6, laser marking its main application areas: gold and silver jewelry, watches, glasses, clothing, cutlery, tobacco, alcohol, beverages, gifts, mold, medical equipment, instrumentation equipment, sanitary ware, office supplies, household goods, hardware tools, lighting and sound , trademarks, signage, electronic components, automobile manufacturing, and aerospace and other industries. 7, laser communications laser communications, laser transmission as a means of communication in air space. green laser itself should also be improved.
Monday, March 26, 2012
the laser dot of green laser will be concentrated
This includes all the commands of the work to be performed to inform the printer - what paper to use, how to set up the page format, how to deal with fonts. Controller in order to use these data, the data must be received in the correct order. Raster Image Processor. Construct the data, the controller began to generate the entire page. It will set the text margins, and arrangement of words and placed all the images. After the page arrangement, Raster Image Processor (RIP) to get the page data, either for the entire page, and can also access, then the page is divided into an array of tiny point. So that the laser dot of green laser will be concentrated.
As we will see in the next section, the printer requires page must use this format, so that the laser can be written to the drum. In most laser printers, all print jobs in the controller will be saved to its own memory. This allows the controller to different print jobs into a queue, in order to process a print job. In addition, multiple copies if you want to print the document, this method can also save printing time, because the host only needs to send a data to. Laser components. The printer's laser system is responsible for the drawing of the page, so it - or laser scanning assembly - must be very precise. So the stargazer can use green laser pointer to point and show the star to others very clearly.
The traditional laser scanning assembly includes: laser receives the page data - to form a small point of the text and images - one to receive a horizontal line. When a light pulse beam in the lateral movement of the cartridge, the laser will be issued for each point you want to print, for a blank area of the point is not to issue any pulse. Laser itself does not actually move the laser beam. In contrast, the laser beam through the side of the movable mirror reflection to the cartridge. When the mirror moves, it will reflect the laser beam and make it through a series of lenses. The system can compensate for image distortion caused by constantly changing the distance between a point on the mirror and drum. The customer can open green laser pointer from the middle part of the laser pointer.
Laser printer how to "write" page. Laser components only move horizontally on a flat surface. After each horizontal scan, the printer will drum to move a scale, so that the laser assembly can draw the next line. The speed at which a small print engine computer to perfectly perform all of synchronous operation. Some laser printers use a row of light-emitting diode (LED) to write the page image, instead of using a single laser. The location of each point has its own dedicated light, which means that the printer's print resolution is fixed. Compared with the real laser components, the lower the manufacturing costs of these systems, but the print results are poor. Typically, you will only find some cheap printer this system. This green laser pointer also has the power of 200mW and wave length of 532nm.
The laser printer works somewhat similar to a photocopier, but there were significant differences in some aspects. The most obvious difference is the source of the image: the copier to scan through the images reflected light images, laser printers are digital format to receive image data. Another major difference is the way to create a static image. Copier paper to light reflection, exposure to the light of the white areas will be reflected to the photoreceptor, and the exposure to the black areas of the light will be absorbed. In this process the "background" discharge, electrostatic image retains the positive charge. This method is called "write white". The laser head of green laser pointer can make the laser pointer more attractive and functional. The green laser beam is easier to be influenced by the cold ambient environment.
As we will see in the next section, the printer requires page must use this format, so that the laser can be written to the drum. In most laser printers, all print jobs in the controller will be saved to its own memory. This allows the controller to different print jobs into a queue, in order to process a print job. In addition, multiple copies if you want to print the document, this method can also save printing time, because the host only needs to send a data to. Laser components. The printer's laser system is responsible for the drawing of the page, so it - or laser scanning assembly - must be very precise. So the stargazer can use green laser pointer to point and show the star to others very clearly.
The traditional laser scanning assembly includes: laser receives the page data - to form a small point of the text and images - one to receive a horizontal line. When a light pulse beam in the lateral movement of the cartridge, the laser will be issued for each point you want to print, for a blank area of the point is not to issue any pulse. Laser itself does not actually move the laser beam. In contrast, the laser beam through the side of the movable mirror reflection to the cartridge. When the mirror moves, it will reflect the laser beam and make it through a series of lenses. The system can compensate for image distortion caused by constantly changing the distance between a point on the mirror and drum. The customer can open green laser pointer from the middle part of the laser pointer.
Laser printer how to "write" page. Laser components only move horizontally on a flat surface. After each horizontal scan, the printer will drum to move a scale, so that the laser assembly can draw the next line. The speed at which a small print engine computer to perfectly perform all of synchronous operation. Some laser printers use a row of light-emitting diode (LED) to write the page image, instead of using a single laser. The location of each point has its own dedicated light, which means that the printer's print resolution is fixed. Compared with the real laser components, the lower the manufacturing costs of these systems, but the print results are poor. Typically, you will only find some cheap printer this system. This green laser pointer also has the power of 200mW and wave length of 532nm.
The laser printer works somewhat similar to a photocopier, but there were significant differences in some aspects. The most obvious difference is the source of the image: the copier to scan through the images reflected light images, laser printers are digital format to receive image data. Another major difference is the way to create a static image. Copier paper to light reflection, exposure to the light of the white areas will be reflected to the photoreceptor, and the exposure to the black areas of the light will be absorbed. In this process the "background" discharge, electrostatic image retains the positive charge. This method is called "write white". The laser head of green laser pointer can make the laser pointer more attractive and functional. The green laser beam is easier to be influenced by the cold ambient environment.
Sunday, March 25, 2012
It means this kind of battery of green laser pointer can not be used again
In addition, the entire laser range finder in addition to optical frequency signal, a total of five different frequency signals: master oscillator: 15MHz master oscillator 2: 150KHz LO 1: 14.985MHz LO 2: 135KHz and 15KHz of The mixer output signal, in addition to the last mixer output signal, the other four frequency signal which phase-shift laser range finder transmitter circuit. Receive part of the photoelectric conversion part the design of laser echo signal amplification section and mixing section. The choice of the photodetector spectral responsivity is one of the basic performance of the photodetector, and characterization of the photoelectric detector response to incident radiation of different wavelengths. Photodetector spectral response characteristics of the selectivity. The battery of green laser should be used in the right polarity order.
Phase-shift laser rangefinder receiver circuit shown in Figure 3.2 is silicon, germanium photodiode spectral response characteristics, can be seen that the silicon and germanium photodiode-based on the relative sensitivity on the wavelength obvious selectivity. Figure 3.2 silicon, germanium photodiode spectral response characteristics should be selected on the lasing wavelength response to high avalanche diode as the photodetector. Design system for the semiconductor laser signal for the red wave, the wavelength of 650nm, Figure 3.2, silicon avalanche diode than the wavelength response of the germanium avalanche diodes in the range of high, so choose the silicon avalanche diode as a laser detector. green laser pointer risks being damaged if being charged forcefully.
In addition, when the avalanche diode bias is low, multiplier effect, the partial pressure is increased, the photocurrent rising rapidly, but the noise current increased with increasing bias noise current slope of the curve, especially when the avalanche voltage is reached large signal to noise ratio a sharp decline. Therefore, the use of the avalanche should pay special attention to the stability of the optimal bias. 3.3 the APD voltage bias circuit design of high voltage bias circuit design avalanche diode has a high internal gain, the response speed is very fast, but it must be given a higher reverse bias voltage, the avalanche diode to play its excellent properties [11] [12]. According to design requirements, the APD voltage bias circuit is required to produce 120-160V high-voltage, high gain avalanche diode. Possibility of damaging green laser pointer might happen.
Hypertension circuit schematic in Figure 3.4 shows, the high voltage generator 555 an oscillator, the switching transistor Q1, the energy storage inductor L3, and filter capacitor C37, C38, and blocking diode D2, and D3. The oscillator is used to produce a certain frequency square wave signal to control the transistor on and off, and then by the inductor-capacitor filter circuit, resulting in high output voltage. The basic working principle of the circuit when the transistor Q1 turns on, the energy from the power flow into and stored in the inductor L3, the transistor conduction during the positive saturation voltage is very small, so when the diode D2 reverse biased load by the filter capacitor C37 supply of energy, the energy stored in the capacitance of the CV 2 2 release to the load. This kind of battery of green laser pointer can not be charged after being used out.
When the transistor is cut-off, the inductor current can not mutations, it generated EMF to prevent the current decreases under the EMF polarity is negative, the diode D2 turns on, the energy stored in the inductor into the capacitor (charge) and supply the load. Ordinary selection of the inductor has a saturation current, so if the transistor on-time too long, then the inductor current flowing through saturated, that is, the current can not be sustained growth, so this time and can not get a larger output voltage , but due to the smaller frequency relationship, resulting in the increase of power loss on the transistor. It means this kind of battery of green laser pointer can not be used again.
Phase-shift laser rangefinder receiver circuit shown in Figure 3.2 is silicon, germanium photodiode spectral response characteristics, can be seen that the silicon and germanium photodiode-based on the relative sensitivity on the wavelength obvious selectivity. Figure 3.2 silicon, germanium photodiode spectral response characteristics should be selected on the lasing wavelength response to high avalanche diode as the photodetector. Design system for the semiconductor laser signal for the red wave, the wavelength of 650nm, Figure 3.2, silicon avalanche diode than the wavelength response of the germanium avalanche diodes in the range of high, so choose the silicon avalanche diode as a laser detector. green laser pointer risks being damaged if being charged forcefully.
In addition, when the avalanche diode bias is low, multiplier effect, the partial pressure is increased, the photocurrent rising rapidly, but the noise current increased with increasing bias noise current slope of the curve, especially when the avalanche voltage is reached large signal to noise ratio a sharp decline. Therefore, the use of the avalanche should pay special attention to the stability of the optimal bias. 3.3 the APD voltage bias circuit design of high voltage bias circuit design avalanche diode has a high internal gain, the response speed is very fast, but it must be given a higher reverse bias voltage, the avalanche diode to play its excellent properties [11] [12]. According to design requirements, the APD voltage bias circuit is required to produce 120-160V high-voltage, high gain avalanche diode. Possibility of damaging green laser pointer might happen.
Hypertension circuit schematic in Figure 3.4 shows, the high voltage generator 555 an oscillator, the switching transistor Q1, the energy storage inductor L3, and filter capacitor C37, C38, and blocking diode D2, and D3. The oscillator is used to produce a certain frequency square wave signal to control the transistor on and off, and then by the inductor-capacitor filter circuit, resulting in high output voltage. The basic working principle of the circuit when the transistor Q1 turns on, the energy from the power flow into and stored in the inductor L3, the transistor conduction during the positive saturation voltage is very small, so when the diode D2 reverse biased load by the filter capacitor C37 supply of energy, the energy stored in the capacitance of the CV 2 2 release to the load. This kind of battery of green laser pointer can not be charged after being used out.
When the transistor is cut-off, the inductor current can not mutations, it generated EMF to prevent the current decreases under the EMF polarity is negative, the diode D2 turns on, the energy stored in the inductor into the capacitor (charge) and supply the load. Ordinary selection of the inductor has a saturation current, so if the transistor on-time too long, then the inductor current flowing through saturated, that is, the current can not be sustained growth, so this time and can not get a larger output voltage , but due to the smaller frequency relationship, resulting in the increase of power loss on the transistor. It means this kind of battery of green laser pointer can not be used again.
Friday, March 23, 2012
A new piece of the battery of green laser pointer
The laser show principle and advantage of: laser show is a display of red, green, blue (RGB) primary color laser as the light source can be the most realistic reproduction of the objective world of rich, bright colors, providing even more shocking expression. With the natural light color gamut compared to conventional display devices can only reproduce the human eye can see the color of 30 percent at present being developed laser display can cover 90% of this huge potential for us looking forward to the future of the laser display technology The laser show is called "the human visual history of the revolution". Laser full color display, the benefits of the product: color space, color, color saturation, its color expression is 2 times higher than the traditional TV. It means this kind of battery of green laser pointer can not be used again.
Second, long lamp life, maintenance cost of the overall use of low-cost, laser light source is completely breaking down the traditional light sources, electro-optical conversion mode, the life expectancy of up to 10 years, the traditional lamp life 10 times to 20 times; Third, small-scale investment in production equipment investment in production equipment, laser display, can be commissioned in phases from the tens of millions of dollars to billions of dollars; Fourth, environmental protection, energy saving, power consumption is only 1/3 of the traditional TV, very much in line with the national policy of energy saving, the other laser light source in the production process does not use the threat of heavy metal material on the environment, an environment-friendly light source; Fifth, the large potential for cost reduction, the expansion of industry and adoption of new technologies. After the battery of green laser pointer has been used out.
Will laser system designed to produce a revolutionary change, to enhance the display quality at the same time greatly reduce costs. The laser display technology Applications: Laser display technology direction: the laser display technology for the production of laser display, laser display by the laser light deflection and screen. With the general display, the image effect of the same screen size, the same conditions, the power consumption of only the salient features of the ordinary display. Second, the laser is 100% monochromatic light, red, blue, green three color light modulation, the color effect is very satisfactory. At room temperature life-expectancy of up to 100,000 hours, calculate the room temperature lifetime at high temperature aging test up to one million hours. This kind of battery of green laser pointer can not be charged after being used out.
Therefore, it is a long ordered high-reliability products. The laser show is the second black and white display, color display, a new generation of digital display technology, known as the human visual history of the revolution ", with a wide range of color gamut, long life, saving and environmental protection features. Full of miniature solid-state laser is manufactured, the computer will no longer need the LCD screen, just anytime, anywhere projection; lasers, because of the phone screen to enlarge the number of times. At the application level, the laser display technology will become the mainstream of future high-end display, used in public information screen, laser television, digital cinema, mobile phone projector display, portable projector, screen command and personalized helmet display system and other fields. So we suggest the customer should not charge the battery of green laser pointer forcefully after the battery has been used out.
In the large screen to show more realistic, more colorful and dynamic images to produce an unexpected shock. Future display may be laser technology to replace ordinary movie projector's color space is only able to cover the human eye can identify 33% of the color space, while the laser movie projector up to 70%, even 90%. High luminous efficiency of the laser projection, traditional projection lamp more than halogen bulbs, only 2-3% of the energy is converted to light, the other into heat, but also more afraid of vibration. Therefore, the power consumption of the laser projection is relatively small, it does not produce fever. Its room temperature for life-expectancy of up to 100,000 hours at high temperature aging test to calculate the room temperature lifetime of up to one million hours, so it is a long ordered high-reliability products. The customer should change a new piece of the battery of green laser pointer .
Second, long lamp life, maintenance cost of the overall use of low-cost, laser light source is completely breaking down the traditional light sources, electro-optical conversion mode, the life expectancy of up to 10 years, the traditional lamp life 10 times to 20 times; Third, small-scale investment in production equipment investment in production equipment, laser display, can be commissioned in phases from the tens of millions of dollars to billions of dollars; Fourth, environmental protection, energy saving, power consumption is only 1/3 of the traditional TV, very much in line with the national policy of energy saving, the other laser light source in the production process does not use the threat of heavy metal material on the environment, an environment-friendly light source; Fifth, the large potential for cost reduction, the expansion of industry and adoption of new technologies. After the battery of green laser pointer has been used out.
Will laser system designed to produce a revolutionary change, to enhance the display quality at the same time greatly reduce costs. The laser display technology Applications: Laser display technology direction: the laser display technology for the production of laser display, laser display by the laser light deflection and screen. With the general display, the image effect of the same screen size, the same conditions, the power consumption of only the salient features of the ordinary display. Second, the laser is 100% monochromatic light, red, blue, green three color light modulation, the color effect is very satisfactory. At room temperature life-expectancy of up to 100,000 hours, calculate the room temperature lifetime at high temperature aging test up to one million hours. This kind of battery of green laser pointer can not be charged after being used out.
Therefore, it is a long ordered high-reliability products. The laser show is the second black and white display, color display, a new generation of digital display technology, known as the human visual history of the revolution ", with a wide range of color gamut, long life, saving and environmental protection features. Full of miniature solid-state laser is manufactured, the computer will no longer need the LCD screen, just anytime, anywhere projection; lasers, because of the phone screen to enlarge the number of times. At the application level, the laser display technology will become the mainstream of future high-end display, used in public information screen, laser television, digital cinema, mobile phone projector display, portable projector, screen command and personalized helmet display system and other fields. So we suggest the customer should not charge the battery of green laser pointer forcefully after the battery has been used out.
In the large screen to show more realistic, more colorful and dynamic images to produce an unexpected shock. Future display may be laser technology to replace ordinary movie projector's color space is only able to cover the human eye can identify 33% of the color space, while the laser movie projector up to 70%, even 90%. High luminous efficiency of the laser projection, traditional projection lamp more than halogen bulbs, only 2-3% of the energy is converted to light, the other into heat, but also more afraid of vibration. Therefore, the power consumption of the laser projection is relatively small, it does not produce fever. Its room temperature for life-expectancy of up to 100,000 hours at high temperature aging test to calculate the room temperature lifetime of up to one million hours, so it is a long ordered high-reliability products. The customer should change a new piece of the battery of green laser pointer .
Thursday, March 22, 2012
The design of china laser pointer can bring much convenience to the customer
This leads to many physical properties greatly improved; on-chip test, which greatly reduces development costs; light direction perpendicular to the substrate, can be easily integrated high-density two-dimensional planar array to achieve higher power output, and because the the direction perpendicular to the substrate can be arranged in parallel multiple lasers, it is ideal for applications at an unprecedented rate in the field of parallel optical transmission and parallel optical interconnect, it successfully applied to single-channel parallel optical interconnect, it is very high performance and low cost, broadband Ethernet, high-speed data communications network in a large number of applications; the most attractive is its manufacturing process and the light-emitting diode (LED)-compatible, low cost of mass-produced. It is the packing list of this kind of green laser pointer .
Domestic and foreign technology, application status, application areas. Abroad, mainly in Germany, the United States, Britain and other high-power vertical-cavity surface-emitting lasers related to many key technologies of materials, structural design, high-quality epitaxial material growth process. University of Ulm, Germany, using a large diameter (320 micron) devices to achieve continuous 890mW single-tube array of 19 80 microns in diameter devices to achieve continuous 1.4W (equivalent to power density 1kW/cm2) and nanosecond narrow pulse light output of 10W. University of California, 1000 array of 45 micron diameter pulse 5W output. Therefore, the unexpected or accidental damage can be avoided for laser pointer .
The U.S. Novalux 2003 1W output 980nm vertical cavity surface emitting laser 42mW Blu-ray high-power output by intracavity frequency doubling. U.S. Sandia National Laboratories, optically pumped vertical-cavity single-tube devices, 980nm wavelength output, pulse power up to 4.4W. Institute of Optics Research Institute has developed the first time in the international arena, large-diameter high-power vertical cavity surface emitting semiconductor laser, a leading international level. As the semiconductor laser is small, light weight, high efficiency, long life, low power consumption. Actually, it is a very sweet and considerate design for green laser .
Vertical cavity surface emitting laser with good beam quality can be widely used in optical fiber communications, fiber lasers, space communications, laser display, laser ranging, laser fuses, laser lighting, tracking, and other fields. For example, the fiber laser has a small size, low power consumption, long life, high stability, and maintenance-free, multi-band characteristics, and superior beam quality, stable performance, high photoelectric conversion efficiency, has won numerous laser industry who affirmed: fiber lasers will replace most of the low-power and high power Nd: YAG and CO2 lasers; fiber lasers and other types of lasers, with its superior performance in all major industrial laser applications have absolutely an overwhelming advantage. The design of china laser pointer can bring much convenience to the customer.
Fiber laser has opened up many new applications unmatched by conventional laser field; fiber laser with its high reliability, excellent beam quality, low running costs for the laser processing industry to establish a new standard; fiber laser with its low and reasonable production costs in the short term to replace most of the traditional lamp-pumped, diode-pumped Nd: YAG laser system, and replace about 70% of the axial flow CO2 laser system in the field of laser cutting and welding. The fiber laser will soon become the mainstream product of the laser. In optical fiber communication, the VCSEL market unprecedented development in North America to replace the high price of the LD for Gigabit, 10 Gigabit Ethernet data communication network construction, leading to the explosive growth of high-speed VCSEL transceiver module demand. Actually, many customers would like to use t green laser pointer for the practical use.
Domestic and foreign technology, application status, application areas. Abroad, mainly in Germany, the United States, Britain and other high-power vertical-cavity surface-emitting lasers related to many key technologies of materials, structural design, high-quality epitaxial material growth process. University of Ulm, Germany, using a large diameter (320 micron) devices to achieve continuous 890mW single-tube array of 19 80 microns in diameter devices to achieve continuous 1.4W (equivalent to power density 1kW/cm2) and nanosecond narrow pulse light output of 10W. University of California, 1000 array of 45 micron diameter pulse 5W output. Therefore, the unexpected or accidental damage can be avoided for laser pointer .
The U.S. Novalux 2003 1W output 980nm vertical cavity surface emitting laser 42mW Blu-ray high-power output by intracavity frequency doubling. U.S. Sandia National Laboratories, optically pumped vertical-cavity single-tube devices, 980nm wavelength output, pulse power up to 4.4W. Institute of Optics Research Institute has developed the first time in the international arena, large-diameter high-power vertical cavity surface emitting semiconductor laser, a leading international level. As the semiconductor laser is small, light weight, high efficiency, long life, low power consumption. Actually, it is a very sweet and considerate design for green laser .
Vertical cavity surface emitting laser with good beam quality can be widely used in optical fiber communications, fiber lasers, space communications, laser display, laser ranging, laser fuses, laser lighting, tracking, and other fields. For example, the fiber laser has a small size, low power consumption, long life, high stability, and maintenance-free, multi-band characteristics, and superior beam quality, stable performance, high photoelectric conversion efficiency, has won numerous laser industry who affirmed: fiber lasers will replace most of the low-power and high power Nd: YAG and CO2 lasers; fiber lasers and other types of lasers, with its superior performance in all major industrial laser applications have absolutely an overwhelming advantage. The design of china laser pointer can bring much convenience to the customer.
Fiber laser has opened up many new applications unmatched by conventional laser field; fiber laser with its high reliability, excellent beam quality, low running costs for the laser processing industry to establish a new standard; fiber laser with its low and reasonable production costs in the short term to replace most of the traditional lamp-pumped, diode-pumped Nd: YAG laser system, and replace about 70% of the axial flow CO2 laser system in the field of laser cutting and welding. The fiber laser will soon become the mainstream product of the laser. In optical fiber communication, the VCSEL market unprecedented development in North America to replace the high price of the LD for Gigabit, 10 Gigabit Ethernet data communication network construction, leading to the explosive growth of high-speed VCSEL transceiver module demand. Actually, many customers would like to use t green laser pointer for the practical use.
Wednesday, March 21, 2012
China laser pointer are adopting the most advanced wireless RF technology
Show program data and then transmitted to the U disk, complete laser scan control circuit. The advantage of this system can scan a variety of two-dimensional and even three-dimensional graphics and text, and animation effects. Compared to the previous calculator software control, the cost is greatly reduced, the control circuit is simple, easier to promote the application. This design collection optics, electronics, computers and other knowledge in one, is a multidisciplinary technical applications. The overall structure of the analysis and the block diagram. The overall structure of the analysis of laser light controller by the optical system, the drive circuit, interface circuit, control circuit is composed of four parts. green laser pointer all have a power switch.
Optical systems including lasers and two plane mirrors, the mirror angle is adjustable, using total internal reflection, in order to ensure good laser projection beam; drive circuit by the voltage amplifier and power amplifier two composition, its role is to provide a motor driven mirror rotation the required power. Drive and control circuits not a total ground power, digitally controlled analog switches to cut off the interference of the control object to the control circuit; interface circuit including digitally controlled analog switches, digital to analog converter and USB read-write interface. laser pointer is anti-interference.
Its main role is to digital conversion of the control circuit voltage analog to give the driver circuit and read U disk data; control circuit is the the AT89S52 minimum system completed its role in programming the motor running state, coordination and control the entire system job. 2.2 The whole block diagram of the control circuit digitally controlled analog switches 1 # D / A conversion 2 # D / A conversion data to read the motor X motor drive circuit Y optical system Figure 1.1 Overall block diagram of this design Chart works is: were installed in the amount of the motor shaft driven by the constant rotation of the mirror of a certain inclination, has to reflect the brightness of the beam by the laser beam space when a certain percentage of the mirror speed and turn combination The dynamic synthesis, a stable image on the receiver screen. It is a picture of green laser .
Change the size and polarity of the voltage on the two motor armature, motor reversible speed control, or manually adjust the fine adjustment knob attached to the mirror motor shell seat, change the inclination of the two reflector, you can get, such as clover rose lines, and a series of shapes and sizes, rich in content and geometry to 33 the whole hardware circuit design 3.1 Optical System 3.1.1 laser generator, laser generator is the light of the whole system, the laser display environment, the screen body and requirements to achieve the effect of configuration of different colors, different power lasers. General indoor display screen the closer body and the launch point distance, the lower power requirements. china laser pointer are adopting the most advanced wireless RF technology.
Due to higher sensitivity of the human eye to red, low red laser generator power than other color laser generator power under the same conditions. The laser is used to display, the light intensity of 800-1200 lumens, has been able to meet the requirements of most people, it is the power of the laser display system in the tens of mW at 1 ~ 20W. This laser uses a wavelength of 0.63um semiconductor lasers because of their wavelength is similar 0.6328um can therefore replace the He-Ne laser red light, a small firm, difficult to damage, to make up for lack of a He-Ne laser. 3.1.2 Optical console optical console is the control part of the optical path, the laser display system including the optical system and control system. It makes a longer life span of the batteries of green laser pointer .
Optical systems including lasers and two plane mirrors, the mirror angle is adjustable, using total internal reflection, in order to ensure good laser projection beam; drive circuit by the voltage amplifier and power amplifier two composition, its role is to provide a motor driven mirror rotation the required power. Drive and control circuits not a total ground power, digitally controlled analog switches to cut off the interference of the control object to the control circuit; interface circuit including digitally controlled analog switches, digital to analog converter and USB read-write interface. laser pointer is anti-interference.
Its main role is to digital conversion of the control circuit voltage analog to give the driver circuit and read U disk data; control circuit is the the AT89S52 minimum system completed its role in programming the motor running state, coordination and control the entire system job. 2.2 The whole block diagram of the control circuit digitally controlled analog switches 1 # D / A conversion 2 # D / A conversion data to read the motor X motor drive circuit Y optical system Figure 1.1 Overall block diagram of this design Chart works is: were installed in the amount of the motor shaft driven by the constant rotation of the mirror of a certain inclination, has to reflect the brightness of the beam by the laser beam space when a certain percentage of the mirror speed and turn combination The dynamic synthesis, a stable image on the receiver screen. It is a picture of green laser .
Change the size and polarity of the voltage on the two motor armature, motor reversible speed control, or manually adjust the fine adjustment knob attached to the mirror motor shell seat, change the inclination of the two reflector, you can get, such as clover rose lines, and a series of shapes and sizes, rich in content and geometry to 33 the whole hardware circuit design 3.1 Optical System 3.1.1 laser generator, laser generator is the light of the whole system, the laser display environment, the screen body and requirements to achieve the effect of configuration of different colors, different power lasers. General indoor display screen the closer body and the launch point distance, the lower power requirements. china laser pointer are adopting the most advanced wireless RF technology.
Due to higher sensitivity of the human eye to red, low red laser generator power than other color laser generator power under the same conditions. The laser is used to display, the light intensity of 800-1200 lumens, has been able to meet the requirements of most people, it is the power of the laser display system in the tens of mW at 1 ~ 20W. This laser uses a wavelength of 0.63um semiconductor lasers because of their wavelength is similar 0.6328um can therefore replace the He-Ne laser red light, a small firm, difficult to damage, to make up for lack of a He-Ne laser. 3.1.2 Optical console optical console is the control part of the optical path, the laser display system including the optical system and control system. It makes a longer life span of the batteries of green laser pointer .
Tuesday, March 20, 2012
To ensure the good quality and performance of china laser pointer
And laser-related work have been developed, no doubt, the laser excitation has been the inspiration of the artists, broadening the field of emotional expression. Laser etching works in use from 1 to 5 watts of power argon ion laser, or 10 ~ 20W neodymium-doped yttrium aluminum garnet laser (recently it has been the use of power generated by the carbon dioxide laser) laser beam through the optical fiber conduction etching on paper, wood or plexiglass creation. Painting mechanism is different from the carvings, sculptures and paintings, so called etching. It has been increased to the needed value and level of green laser pointer .
Artists can be selected according to their own idea of the laser output power, a variety of distinctive light and dark contrast of peaceful convex contour in the above-mentioned materials, to produce a concise style, vivid works. The high-energy argon ion laser or carbon dioxide laser, but also etched in the clay blank, the system works out interesting. However, this laser-etched artwork, in order to protect its surface from damage, it normally takes on its surface coated with epoxy resin. The laser drawing and writing a smaller power carbon dioxide lasers, argon ion laser and ruby laser ablation, propylene board or canvas can be "painted" a picture with shades of change. The sheet of laser pointer is issued by the director of the workshop.
The laser also in diamonds and other precious stones engraved with the letters of application a perfect tool for the American Gem Institute has been successful in this regard. The code used to identify, name and personal information can all be engraved in precious stones, rings and even the glasses and watch the average inscribed size 60 × 5 micron, depth of only 4 microns. To this end, the need to use a microscope. Is precisely this characteristic, making the precious stones and other items with the naked eye could not see any traces without affecting the appearance and welcomed by customers. This engraved optimized for confidentiality purposes, which is almost impossible before the advent of laser technology. Similarly, with an optical lens to increase the width of the laser beam can be hard materials up to the written word. The storage place of the material of green laser should be dry.
The laser engraving laser engraving is another important field of laser art. And laser etching are essentially different. Laser engraving using a focused pulsed ruby laser or neodymium-doped yttrium aluminum garnet laser, the output of the laser energy pulses. Laser engraving materials used various colors of plexiglass and precious stones, mosaic colored gemstones, colored plastic. A certain energy of the laser radiation, plexiglass thermal decomposition, so adjust the laser energy density and the size of the focal point can be the same as the graver, in the plexiglass to carve a strange and fascinating shapes. Similarly, the laser can also lower the hardness of the sepiolite, turquoise, alabaster stones sculpture. To ensure the good quality and performance of china laser pointer .
Higher hardness of the gem (such as agate gem), laser engraving will often break down, therefore not applicable. In the mid-1980s, Czechoslovakia and other countries to develop the new technology of a laser technology, practical decorative glassware. Compared with traditional polishing, engraving, screen printing, etching, sandblasting and other decorative France, the laser method has no wear, high-resolution, non-chemical reaction, flexible design and production advantages. Decorative object has rotational symmetry of the ceramic or glass vases, cups, tall glasses, glasses, etc.. Focused beam on the surface diameter of the micro point of 100 to 150 microns. Variety of decorative patterns can make use of the form or digital camera, scanner input computer, directly controlled by the computer memory. It will determine the core technology and quality and performance of green laser pointer .
Artists can be selected according to their own idea of the laser output power, a variety of distinctive light and dark contrast of peaceful convex contour in the above-mentioned materials, to produce a concise style, vivid works. The high-energy argon ion laser or carbon dioxide laser, but also etched in the clay blank, the system works out interesting. However, this laser-etched artwork, in order to protect its surface from damage, it normally takes on its surface coated with epoxy resin. The laser drawing and writing a smaller power carbon dioxide lasers, argon ion laser and ruby laser ablation, propylene board or canvas can be "painted" a picture with shades of change. The sheet of laser pointer is issued by the director of the workshop.
The laser also in diamonds and other precious stones engraved with the letters of application a perfect tool for the American Gem Institute has been successful in this regard. The code used to identify, name and personal information can all be engraved in precious stones, rings and even the glasses and watch the average inscribed size 60 × 5 micron, depth of only 4 microns. To this end, the need to use a microscope. Is precisely this characteristic, making the precious stones and other items with the naked eye could not see any traces without affecting the appearance and welcomed by customers. This engraved optimized for confidentiality purposes, which is almost impossible before the advent of laser technology. Similarly, with an optical lens to increase the width of the laser beam can be hard materials up to the written word. The storage place of the material of green laser should be dry.
The laser engraving laser engraving is another important field of laser art. And laser etching are essentially different. Laser engraving using a focused pulsed ruby laser or neodymium-doped yttrium aluminum garnet laser, the output of the laser energy pulses. Laser engraving materials used various colors of plexiglass and precious stones, mosaic colored gemstones, colored plastic. A certain energy of the laser radiation, plexiglass thermal decomposition, so adjust the laser energy density and the size of the focal point can be the same as the graver, in the plexiglass to carve a strange and fascinating shapes. Similarly, the laser can also lower the hardness of the sepiolite, turquoise, alabaster stones sculpture. To ensure the good quality and performance of china laser pointer .
Higher hardness of the gem (such as agate gem), laser engraving will often break down, therefore not applicable. In the mid-1980s, Czechoslovakia and other countries to develop the new technology of a laser technology, practical decorative glassware. Compared with traditional polishing, engraving, screen printing, etching, sandblasting and other decorative France, the laser method has no wear, high-resolution, non-chemical reaction, flexible design and production advantages. Decorative object has rotational symmetry of the ceramic or glass vases, cups, tall glasses, glasses, etc.. Focused beam on the surface diameter of the micro point of 100 to 150 microns. Variety of decorative patterns can make use of the form or digital camera, scanner input computer, directly controlled by the computer memory. It will determine the core technology and quality and performance of green laser pointer .
Monday, March 19, 2012
The new function of china laser pointer includes the pageup or pagedown function
Color LaserJet structure: four imaging Color LaserJet constructs: an imaging while color laser printers, black and white laser printers, the biggest difference is in the engine structure, color laser printer using C (by Cyan, blue), M (the Magenta products red), Y (Yellow, yellow) and K (Black, Black) 4-color toner to achieve full-color printing, a color content of color to go through the CMYK to reconcile, a content of the print to go through the CMYK 4-color toner printing process 1. In theory, color laser printers have four sets of identical bodies with black-and-white laser printers to achieve the color printing process. The teachers can remotely control the PPT they use in the class through using green laser pointer.
The print controller, the internal processor speed higher than the black and white laser printer, the configuration memory than the black and white laser printer. The laser printing technology of the mainstream is complicated, we do not need to eleven to explore the principle, let's print speed, resolution, color processing technology to understand some of the major representative of the technology. Print speed of technological innovation Resolution technological innovations color to deal with technological innovation CoLorSmartII color engine technology Tandem high-speed operation at the same speed imageRET2400 fine control intelligent color dots second-generation technology system technology technologies technique II Levels expansion of technology 1. It will be the situation for the lecturer, reporter or business men when they carry out their lecturing, reporting or presentation in the meeting room, concert hall or trade meeting by using laser pointer .
Color print speed of technological innovation color same speed technology HP same speed technology, which is an imaging technique, the four colors has its own imaging drum, at the same time, the inner four imaging drums, respectively showing four colors electronic images, and adsorption of the respective colors of toner to the latent image to form four different colors, paper followed by the four colors of the "latent image" transfer to the print media, and finally to achieve fixing by the fixing roller due to the color once printing is complete, rather than four times the color printing performance is greatly improved, and color print speed black and white print the same. Tandem high-speed engine of this technology is given full play in the Epson Aculaser C4100 color laser printer. green laser also has the modern functions of the wireless presenter.
Advanced 4-2-1 tandem (Tandem) print engine, CMYK four color to imaging, print speeds four times faster than traditional color laser printer speed, efficient output of 24 per minute black and white color with the speed . Two. Resolution of technical innovations resolution technology innovation imageRET2400 technology imageRET2400 technology, also known as image resolution enhancement technology, here we the HP ColorLaserJet4500 color laser printer, for example, it uses HP's patented ImageRet2400 color layering technology, the engine 600dpi physical resolution of the basis on the particle diameter as small as 5 microns the UltraPrecise ultra-fine toner. The new function of china laser pointer includes the pageup or pagedown function.
Multilayer coloring, 2400dpi effect on each physical pixel. Maximize integration into the printing process in a single point in four colors, and allocation of the toner in the designated areas, to achieve precise control of color, resulting in hundreds of thousands of soft colors. Fine ink point control technology Epson AcuLaser Fine ink point control techniques used in the exposure unit by changing the pulse width to control the time of the laser emission. Precise control of pulse width allows the printer to be able to control the size of the dots. Therefore, the technology can copy a smooth gray scale, even in the bright and dark areas. Of course, the lecturers can use green laser pointer to point at the content they want to highlight.
The print controller, the internal processor speed higher than the black and white laser printer, the configuration memory than the black and white laser printer. The laser printing technology of the mainstream is complicated, we do not need to eleven to explore the principle, let's print speed, resolution, color processing technology to understand some of the major representative of the technology. Print speed of technological innovation Resolution technological innovations color to deal with technological innovation CoLorSmartII color engine technology Tandem high-speed operation at the same speed imageRET2400 fine control intelligent color dots second-generation technology system technology technologies technique II Levels expansion of technology 1. It will be the situation for the lecturer, reporter or business men when they carry out their lecturing, reporting or presentation in the meeting room, concert hall or trade meeting by using laser pointer .
Color print speed of technological innovation color same speed technology HP same speed technology, which is an imaging technique, the four colors has its own imaging drum, at the same time, the inner four imaging drums, respectively showing four colors electronic images, and adsorption of the respective colors of toner to the latent image to form four different colors, paper followed by the four colors of the "latent image" transfer to the print media, and finally to achieve fixing by the fixing roller due to the color once printing is complete, rather than four times the color printing performance is greatly improved, and color print speed black and white print the same. Tandem high-speed engine of this technology is given full play in the Epson Aculaser C4100 color laser printer. green laser also has the modern functions of the wireless presenter.
Advanced 4-2-1 tandem (Tandem) print engine, CMYK four color to imaging, print speeds four times faster than traditional color laser printer speed, efficient output of 24 per minute black and white color with the speed . Two. Resolution of technical innovations resolution technology innovation imageRET2400 technology imageRET2400 technology, also known as image resolution enhancement technology, here we the HP ColorLaserJet4500 color laser printer, for example, it uses HP's patented ImageRet2400 color layering technology, the engine 600dpi physical resolution of the basis on the particle diameter as small as 5 microns the UltraPrecise ultra-fine toner. The new function of china laser pointer includes the pageup or pagedown function.
Multilayer coloring, 2400dpi effect on each physical pixel. Maximize integration into the printing process in a single point in four colors, and allocation of the toner in the designated areas, to achieve precise control of color, resulting in hundreds of thousands of soft colors. Fine ink point control technology Epson AcuLaser Fine ink point control techniques used in the exposure unit by changing the pulse width to control the time of the laser emission. Precise control of pulse width allows the printer to be able to control the size of the dots. Therefore, the technology can copy a smooth gray scale, even in the bright and dark areas. Of course, the lecturers can use green laser pointer to point at the content they want to highlight.
Sunday, March 18, 2012
The body color of this type of Green laser is black
On the other hand, if you select the printer uses PCL to print, the printer processor speed and print the memory size is worth attention. Print, followed by the data information is read into the printer's memory to print the contents of more complex pages, which means that the greater the amount of data that the printer needs to be addressed, the more memory consumption. If the speed of the printer controller is faster, more printer memory, the data processing time is shorter, more read, will not cause too much impact on the printing speed of the printer. One kind of battery of green laser pointer has the diameter of 16mm and length of 34mm.
What is gratifying is that the majority of the small laser printers currently on the market using the PCL mode with at least 8MB of printer memory, to complete a typical commercial applications can still competent. In addition, if you print the special needs often have to deal with large document page capacity, you may wish to carefully selected a memory can be upgraded products, after all, for a small laser printer, the memory capacity of most of the products are not upgrade. For users of personal and small office environment, the content of their daily office printing mostly text printing, both some simple graphics and photos, text print quality can be said that this type of office users are most concerned about. The medical and astronomy need green laser pointer .
They hope that the text of the printer output consistent as possible with the print to be accurate in terms of font performance, clear strokes, ink evenly without distortion. From this perspective, the black and white laser printer in 300dpi resolution text print quality can be very good to meet the needs of users, mainstream resolution of 1200dpi, the text of the black and white laser pointer print quality can be comparable to print. Graphic printing, there is no doubt 1200dpi than 600dpi more details and more delicate level, but when printing graphics and images, after the harsh judgment of our test engineers to get the conclusion. Take into account the user's actual application, and combine the results of our tests. Therefore, this kind of charger of green laser pointer is very practical.
The small black and white laser printer, print quality, print graphics in 600dpi, good in all aspects of the precision, accuracy, and gray levels can meet the requirements for graphic print quality high output of the design staff. If you do not care about the details of the printing performance, we recommend that you do not give much thought to the print resolution, after all, 600dpi and 1200dpi print a document, the difference is very small. The printer type of inkjet printer laser printer dot matrix printer, thermal printer thermal wax printer plotter laser printers. Going back in history: the path of development of the laser printer. Any one technology invention and application are often difficult, and the printer is also true. The body color of this type of green laser is black.
Emergence from the 1885 world's first printer, scientists continue to explore, from a dot matrix printer dot matrix printer, and then the ink-jet printers, laser printers, every step of the shoe to step hard, but every time a breakthrough for human bring a new gospel, which is the fundamental significance of science. Today, I open the historical record of this, and friends together to understand the laser printer have forgotten the past. The development of laser printers (Xerox), originated in the Xerox 1948 production of the world's first electrostatic copier. Since then scientists have begun the painstaking research of laser technology and laser modulation technique in the printer. The first generation china laser pointer is a kind of laser pointer.
What is gratifying is that the majority of the small laser printers currently on the market using the PCL mode with at least 8MB of printer memory, to complete a typical commercial applications can still competent. In addition, if you print the special needs often have to deal with large document page capacity, you may wish to carefully selected a memory can be upgraded products, after all, for a small laser printer, the memory capacity of most of the products are not upgrade. For users of personal and small office environment, the content of their daily office printing mostly text printing, both some simple graphics and photos, text print quality can be said that this type of office users are most concerned about. The medical and astronomy need green laser pointer .
They hope that the text of the printer output consistent as possible with the print to be accurate in terms of font performance, clear strokes, ink evenly without distortion. From this perspective, the black and white laser printer in 300dpi resolution text print quality can be very good to meet the needs of users, mainstream resolution of 1200dpi, the text of the black and white laser pointer print quality can be comparable to print. Graphic printing, there is no doubt 1200dpi than 600dpi more details and more delicate level, but when printing graphics and images, after the harsh judgment of our test engineers to get the conclusion. Take into account the user's actual application, and combine the results of our tests. Therefore, this kind of charger of green laser pointer is very practical.
The small black and white laser printer, print quality, print graphics in 600dpi, good in all aspects of the precision, accuracy, and gray levels can meet the requirements for graphic print quality high output of the design staff. If you do not care about the details of the printing performance, we recommend that you do not give much thought to the print resolution, after all, 600dpi and 1200dpi print a document, the difference is very small. The printer type of inkjet printer laser printer dot matrix printer, thermal printer thermal wax printer plotter laser printers. Going back in history: the path of development of the laser printer. Any one technology invention and application are often difficult, and the printer is also true. The body color of this type of green laser is black.
Emergence from the 1885 world's first printer, scientists continue to explore, from a dot matrix printer dot matrix printer, and then the ink-jet printers, laser printers, every step of the shoe to step hard, but every time a breakthrough for human bring a new gospel, which is the fundamental significance of science. Today, I open the historical record of this, and friends together to understand the laser printer have forgotten the past. The development of laser printers (Xerox), originated in the Xerox 1948 production of the world's first electrostatic copier. Since then scientists have begun the painstaking research of laser technology and laser modulation technique in the printer. The first generation china laser pointer is a kind of laser pointer.
Friday, March 16, 2012
China laser pointer can be used to find the way
Have 20mV overload drive, the device has a maximum propagation delay of 12ns, and the clock and signal rate of 85MHz. For high-precision counts, signal to noise ratio must be considered, the role of high-speed comparators. Comparator must be set comparative level, and compare the level of the main reference is the voltage amplitude of the noise signal, compare the level should be higher than the voltage amplitude of the noise signal, but lower than the signal voltage level. Compare the power level (threshold) set as small as that, which can reduce system power consumption, but too small to filter out not noise, too much will extract no laser signal. Here will introduce a handheld type flashlight green laser pointer to you customers.
Are closely related to the intensity of the noise signal and the background light intensity, the higher the intensity of the background light, noise, higher level. Comparison filter, noise suppression of the maximum, backlight basic filter. In general, by setting the threshold to the initial identification. But how to set the threshold to extract the correct signal has a great impact. Typically, after a set threshold, above the threshold value, which may have the laser echo signal. The microcontroller STC89C51. The microcontroller is a very wide range in the actual application design using the microcontroller through the serial port used to transmit data. The microcontroller STC89C51 choice can use the serial download process, do not buy the more expensive the compiler reduces the cost. laser pointer will emits the visible green light.
In addition, the confidentiality is also very good. STC89C51 series MCU on-chip UART for serial communications; There are two SBUF, one for send buffers, one for the receive buffer. To complete the initialization of the serial data into the send SBUF, can be predetermined baud rate, data sent and received data can be read from the receiver SBUF data received. Computer Interface Modules chip select. Can be seen from the diagram of the computer interface module, the MAX232 chip. This is due to the receiver module the microcontroller STC89C51 needs and PC serial communication. And the light effect of green laser will be more obvious in the dark area.
Computer serial port RS232 level-10v +10 v, while the signal voltage of the MCU application system is 0 +5 v TTL level, is clearly the need for level translation between the two. Level conversion interface module, using a dedicated chip MAX232, MAX232 by Texas Instruments Incorporated (TI) introduced a chip compatible with the RS232 standard. The device is a dual-channel RS232 linear driver / receiver, which includes the two drives, two receivers and a voltage generator circuit to provide TIA/EIA-232-F level. The device line with TIA/EIA-232-F standard, each receiver will TIA/EIA-232-F level to convert 5V TTL / CMOS level. Therefore, green laser pointer can be used to indicate the direction.
Each transmitter TTL / CMOS level conversion into level of TIA/EIA-232-F. The above detailed design for intelligent transportation vehicles in the laser gun, the composition of the hardware circuit, chip select, choice of reference available for intelligent transportation and the development and management of electronic police technicians. Practice has proved that the car the laser gun system designed not only technologically advanced, high measurement precision, cost-effective and simple structure and easy to use, practical, and will soon be widely applied. china laser pointer can be used to find the way.
Are closely related to the intensity of the noise signal and the background light intensity, the higher the intensity of the background light, noise, higher level. Comparison filter, noise suppression of the maximum, backlight basic filter. In general, by setting the threshold to the initial identification. But how to set the threshold to extract the correct signal has a great impact. Typically, after a set threshold, above the threshold value, which may have the laser echo signal. The microcontroller STC89C51. The microcontroller is a very wide range in the actual application design using the microcontroller through the serial port used to transmit data. The microcontroller STC89C51 choice can use the serial download process, do not buy the more expensive the compiler reduces the cost. laser pointer will emits the visible green light.
In addition, the confidentiality is also very good. STC89C51 series MCU on-chip UART for serial communications; There are two SBUF, one for send buffers, one for the receive buffer. To complete the initialization of the serial data into the send SBUF, can be predetermined baud rate, data sent and received data can be read from the receiver SBUF data received. Computer Interface Modules chip select. Can be seen from the diagram of the computer interface module, the MAX232 chip. This is due to the receiver module the microcontroller STC89C51 needs and PC serial communication. And the light effect of green laser will be more obvious in the dark area.
Computer serial port RS232 level-10v +10 v, while the signal voltage of the MCU application system is 0 +5 v TTL level, is clearly the need for level translation between the two. Level conversion interface module, using a dedicated chip MAX232, MAX232 by Texas Instruments Incorporated (TI) introduced a chip compatible with the RS232 standard. The device is a dual-channel RS232 linear driver / receiver, which includes the two drives, two receivers and a voltage generator circuit to provide TIA/EIA-232-F level. The device line with TIA/EIA-232-F standard, each receiver will TIA/EIA-232-F level to convert 5V TTL / CMOS level. Therefore, green laser pointer can be used to indicate the direction.
Each transmitter TTL / CMOS level conversion into level of TIA/EIA-232-F. The above detailed design for intelligent transportation vehicles in the laser gun, the composition of the hardware circuit, chip select, choice of reference available for intelligent transportation and the development and management of electronic police technicians. Practice has proved that the car the laser gun system designed not only technologically advanced, high measurement precision, cost-effective and simple structure and easy to use, practical, and will soon be widely applied. china laser pointer can be used to find the way.
Thursday, March 15, 2012
Green laser is in the bottle shape
In addition, the laser texturing can improve roll performance due to optimization of the friction conditions, easy to slip in the rolling and adhesion, rolling speed can be increased more than doubled to eliminate the board volume annealing bonding phenomenon can further optimize the rolling parameters, and even The available laser roll asynchronous rolling. Usually a large area of laser processing using a continuous scan, line and surface, the swath overlap caused by tempering soft band and scanning with non-overlapping surface anisotropy due to the problems at this time. To this end, the discrete surface melting by pulsed laser instead of laser continuous scanning process. Roll laser hair technology is successfully applied pulse discrete laser surface melting technology. This kind of green laser pointer needs a piece of CR2 battery.
Cold roll laser hair technology has a certain scale industrial applications in China. YAG laser texturing of cold roll process research for March 1990 under the Chinese Academy of Sciences mechanics where Daheng, Beijing Jeep, Shougang Iron and Steel Research the collaboration to carry out successfully developed the first can be used to strip scale production in June 1992 YAG laser hair of the experimental apparatus of the cold roll. August 1992 for the production of of Qinhuangdao Dragon Precision Strip, in 1994 three sets of large, medium, small YAG laser texturing of cold roll complete sets of equipment were cold-rolled sheet plant in Tianjin, Anshan strip steel, Wuxi afar with steel mills into production. Only one year, cold-rolled sheet plant in Tianjin last ten tons of high quality laser texturing board on the market. The battery of laser pointer is full.
Following Belgium, Japan, Germany, the world's first four countries master laser texturing of cold roll technology for the production of scale in China. 1995 Love Polytechnic University, Wuhan, Wuhan heavy machine to the successful development of the CO2 laser texturing of cold roll equipment and try rolling the steel plate of the 300t CO2 laser texturing. The above results illustrate the laser hair technology and equipment and industrial applications of laser heat treatment process of industrialization, industry, academia, research combining great success, a prominent example, it is worth promoting. Laser Hardening of the hot roller. Guangzhou Fortis, Inc. is a private high-tech enterprise, began in 1994, the application of laser processing technology development, has developed a successful the GFT laser multi-function processing machine [47]. green laser is in the bottle shape.
For laser surface modification and repair of metallurgical bulk consumption items and other types of mechanical parts, in April 1998 the Ministry of Metallurgical Industry of the certificate of authenticity. Which the handling of the hot roller to obtain the following results: The main products GFT laser heat treatment machine has entered the Xinjiang Bayi Iron & Steel and Handan Iron and Steel, Laiwu Steel, Jinan Iron and Steel, Yuchai and other large and medium-sized enterprises, the market outlook is promising. Laser strengthening of the cylinder block and cylinder wall. The cylinder block and cylinder laser strengthening the laser heat treatment technology of the earliest instances of practical application. The manufacturers of the laser liner Xi'an Internal Combustion Engine Parts Plant [48], the first liner laser heat treatment production line, the plant completed in October in 1990 to the end of 1998 have been completed and 24 laser heat treatment production line. Customers gaze the star they want to observe through china laser pointer .
Production capacity will reach an annual output of 1.2 million laser liner, wear resistance increased by 25% to 30% or more than ordinary liner, the liner life increased from 6000 ~ 8000h to 10000h, but also has superior pair and tensile cylinder performance, can also be used with any material of the piston rings to match the piston ring of life can be increased by 30% to 46% or more, and can shorten the initial run-in time. The only widely used laser in the automotive repair industry to strengthen the equipment to Qingdao Laser Technology Co., Ltd. products are more [49], the company has developed and produced five kinds of models of laser strengthening machine, good reputation in the market. green laser pointer can used to point at the star.
Cold roll laser hair technology has a certain scale industrial applications in China. YAG laser texturing of cold roll process research for March 1990 under the Chinese Academy of Sciences mechanics where Daheng, Beijing Jeep, Shougang Iron and Steel Research the collaboration to carry out successfully developed the first can be used to strip scale production in June 1992 YAG laser hair of the experimental apparatus of the cold roll. August 1992 for the production of of Qinhuangdao Dragon Precision Strip, in 1994 three sets of large, medium, small YAG laser texturing of cold roll complete sets of equipment were cold-rolled sheet plant in Tianjin, Anshan strip steel, Wuxi afar with steel mills into production. Only one year, cold-rolled sheet plant in Tianjin last ten tons of high quality laser texturing board on the market. The battery of laser pointer is full.
Following Belgium, Japan, Germany, the world's first four countries master laser texturing of cold roll technology for the production of scale in China. 1995 Love Polytechnic University, Wuhan, Wuhan heavy machine to the successful development of the CO2 laser texturing of cold roll equipment and try rolling the steel plate of the 300t CO2 laser texturing. The above results illustrate the laser hair technology and equipment and industrial applications of laser heat treatment process of industrialization, industry, academia, research combining great success, a prominent example, it is worth promoting. Laser Hardening of the hot roller. Guangzhou Fortis, Inc. is a private high-tech enterprise, began in 1994, the application of laser processing technology development, has developed a successful the GFT laser multi-function processing machine [47]. green laser is in the bottle shape.
For laser surface modification and repair of metallurgical bulk consumption items and other types of mechanical parts, in April 1998 the Ministry of Metallurgical Industry of the certificate of authenticity. Which the handling of the hot roller to obtain the following results: The main products GFT laser heat treatment machine has entered the Xinjiang Bayi Iron & Steel and Handan Iron and Steel, Laiwu Steel, Jinan Iron and Steel, Yuchai and other large and medium-sized enterprises, the market outlook is promising. Laser strengthening of the cylinder block and cylinder wall. The cylinder block and cylinder laser strengthening the laser heat treatment technology of the earliest instances of practical application. The manufacturers of the laser liner Xi'an Internal Combustion Engine Parts Plant [48], the first liner laser heat treatment production line, the plant completed in October in 1990 to the end of 1998 have been completed and 24 laser heat treatment production line. Customers gaze the star they want to observe through china laser pointer .
Production capacity will reach an annual output of 1.2 million laser liner, wear resistance increased by 25% to 30% or more than ordinary liner, the liner life increased from 6000 ~ 8000h to 10000h, but also has superior pair and tensile cylinder performance, can also be used with any material of the piston rings to match the piston ring of life can be increased by 30% to 46% or more, and can shorten the initial run-in time. The only widely used laser in the automotive repair industry to strengthen the equipment to Qingdao Laser Technology Co., Ltd. products are more [49], the company has developed and produced five kinds of models of laser strengthening machine, good reputation in the market. green laser pointer can used to point at the star.
Wednesday, March 14, 2012
It is as per the real needs and actual situations of laser pointer
Expected the Tenth Five-Year "period, Wuhan State Optoelectronic Information Industry, Road Traffic and base infrastructure investment scale of $ 5 billion., Broadband networks, Wuhan National Optoelectronics Industry Base has strong communication skills, and virtually network digital transmission of optical fibers, business information technology exchange have off the mountain, off South Temple Mountain, Luxiang 4 telecom base exchange capacity of 200 000, 78 light access point to achieve SDH the combination of optical transmission systems and DWDM systems green laser , the transmission bandwidth has reached 40G, the backbone nodes in the base core nodes Wuhan Telecom China Telecom 320G backbone transmission network connection, the international outlet bandwidth up to 3.3G, has been built based on the optical transmission network. Supply green laser pointer to the customer according to the specific requirements.
Digital Data Network (DDN), frame relay (FR), the HFC network, ATM network and IP network consisting of packet-switched network, advanced technology, reasonable structure, data and multimedia information network, providing the 30,000 ports, to accommodate a few one hundred thousand broadband multimedia users. have been completed and the length of the cumulative 1500 holes km of pipe network, base to achieve comprehensive fiber to the curb, and laid a solid foundation for the realization of all-optical network. development goals based on the construction of the national optoelectronic industry base, industrial base Gigabit to the district china laser pointer , hundreds of megabytes to the building, Shizhao to the desktop, built the first park convenient integrated information network in the country. base of broadband information network and Wuhan broadband metropolitan area network integration, and network with other interworking; broadband network infrastructure. Therefore, the customer can get the product of green laser pointer .
Including pipeline, cable, transmission, data network elements will be carried out simultaneously with the municipal construction. Fiber optic ring in the formation of 7, with a total length of 1500 holes km pipe network system based on, and then add a large capacity of 4 288 new fiber optic ring, and further to cover the entire industrial area; 16 ring wave DWDM backbone transmission network has been built on the basis of, and then add a Hongshan - Luxiang - Guanshan - Tangxun Lake - Hongshan 10G backbone ring, under the hanging five 2.5G the SDH sub-ring, the base transmission needs, and China Telecom's existing SDH backbone ring, Wuhan MAN WDM interconnection; ATM / IP network is further extended to Tangxun Lake University of Science and Technology Park, the industrial base network will the interconnection of other public and private networks. In the current market, for 2000mW output power, it is only the blue green laser pointer .
District and the main building using FTTLAN, supplemented by the XDSL technology for broadband applications to the home, part of the realization of the optical fiber to the desktop. "Optical Valley Building Construction in East Lake High Technology Park" Optical Valley Cyberport, as the entire optoelectronic industry base data transmission exchange hub. base of broadband information network system in accordance with the unified planning and step-by-step implementation of the principle of construction, be completed during the Tenth Five-Year, the total investment in the existing network on the basis of an additional 1 billion yuan. the sixth chapter of the main measures strengthening of institutional innovation, the establishment of reasonable and efficient operation and management mechanisms to strengthen the institutional innovation, and give full play to the advantages of the provinces, municipalities and build a condominium regime, to further clarify the functions of the base construction and management of institutions, strengthen the sense of service of the government departments and the "second pioneering" consciousness. It is as per the real needs and actual situations of laser pointer .
Digital Data Network (DDN), frame relay (FR), the HFC network, ATM network and IP network consisting of packet-switched network, advanced technology, reasonable structure, data and multimedia information network, providing the 30,000 ports, to accommodate a few one hundred thousand broadband multimedia users. have been completed and the length of the cumulative 1500 holes km of pipe network, base to achieve comprehensive fiber to the curb, and laid a solid foundation for the realization of all-optical network. development goals based on the construction of the national optoelectronic industry base, industrial base Gigabit to the district china laser pointer , hundreds of megabytes to the building, Shizhao to the desktop, built the first park convenient integrated information network in the country. base of broadband information network and Wuhan broadband metropolitan area network integration, and network with other interworking; broadband network infrastructure. Therefore, the customer can get the product of green laser pointer .
Including pipeline, cable, transmission, data network elements will be carried out simultaneously with the municipal construction. Fiber optic ring in the formation of 7, with a total length of 1500 holes km pipe network system based on, and then add a large capacity of 4 288 new fiber optic ring, and further to cover the entire industrial area; 16 ring wave DWDM backbone transmission network has been built on the basis of, and then add a Hongshan - Luxiang - Guanshan - Tangxun Lake - Hongshan 10G backbone ring, under the hanging five 2.5G the SDH sub-ring, the base transmission needs, and China Telecom's existing SDH backbone ring, Wuhan MAN WDM interconnection; ATM / IP network is further extended to Tangxun Lake University of Science and Technology Park, the industrial base network will the interconnection of other public and private networks. In the current market, for 2000mW output power, it is only the blue green laser pointer .
District and the main building using FTTLAN, supplemented by the XDSL technology for broadband applications to the home, part of the realization of the optical fiber to the desktop. "Optical Valley Building Construction in East Lake High Technology Park" Optical Valley Cyberport, as the entire optoelectronic industry base data transmission exchange hub. base of broadband information network system in accordance with the unified planning and step-by-step implementation of the principle of construction, be completed during the Tenth Five-Year, the total investment in the existing network on the basis of an additional 1 billion yuan. the sixth chapter of the main measures strengthening of institutional innovation, the establishment of reasonable and efficient operation and management mechanisms to strengthen the institutional innovation, and give full play to the advantages of the provinces, municipalities and build a condominium regime, to further clarify the functions of the base construction and management of institutions, strengthen the sense of service of the government departments and the "second pioneering" consciousness. It is as per the real needs and actual situations of laser pointer .
Tuesday, March 13, 2012
China laser pointer with remote control are various
Unreasonable dietary structure and secondary apolipoprotein abnormalities is caused by large-scale population survey showed that an important factor for atherosclerosis. 1912 Russian scholars to rabbits fed a high cholesterol food, resulting in experimental atherosclerotic animal models. It was found that the modeling process, the first lipid abnormalities increases, followed by the occurrence of atherosclerotic lesions, indicating that poor eating habits can lead to lipid metabolism disorder, and thus the formation of atherosclerosis, leading to coronary heart disease occurred . 40 years ago, the United States coronary heart disease morbidity and mortality, once rising rapidly. Principles of green laser pointer with remote control should be stated in the first place.
Since the 1960s, the incidence of coronary heart disease and disability rate of significant decline. The reason, most scholars believe, is mainly due to lifestyle modification, to reduce the intake of cholesterol and smoking control, thereby reducing the occurrence of coronary heart disease risk factors. But in China, with the improvement of living standards, due to the impact of irrational dietary pattern, smoking and other risk factors of coronary heart disease incidence and mortality showed an increasing trend. A large number of epidemiological survey data indicate that the close relationship between dietary habits and coronary heart disease, high cholesterol food in level vegetarian, the incidence of coronary heart disease was significantly increased. Users can manipulate the receiver of laser pointer with remote control by clicking the related functional keys on the RF remote control.
Quit smoking and eat less fatty foods can reduce the incidence of heart disease. The United Nations survey conducted in 21 countries, findings show that reducing smoking and eat less fatty foods to be effective, reducing the incidence of heart disease. Published in the British medical weekly The Lancet report, developed heart failure and coronary heart disease mortality has declined to cite a few reasons. The plan is implemented under the United Nations World Health Organization. The goal is to compare the mid-1980s and the mid-1990s, heart attack morbidity and mortality to the age of 35 to 64-year-old men and women as research objects. The conclusion of the first part of the plan in May last year, it shows that the developed countries, especially in Northern Europe, the United States and Australia, the incidence of heart disease decreased. green laser includes red ray pointers.
China, the former Yugoslavia and parts of Russia the contrary rise. The reasons pointed out that the reduction in the incidence in the second part of the report are: the decline in the incidence of countries, men are smoking less, women's drop in blood pressure. During this period, weight gain a little attention to diet, blood cholesterol levels dropped by half. However, the most important reason is the accepted therapy in patients with heart disease in Western Europe better. In addition to a thrombolytic drugs, drugs to prevent vascular occlusion is easy to get, in addition, the surgeon uses a greatly improved method of coronary heart disease surgery. Climate change and coronary heart disease in place: the weather is cold weather or in winter and spring, the incidence of angina pectoris and myocardial infarction will increase. china laser pointer with remote control are various.
Three optimal factors and coronary heart disease: temperature, day variation (adjacent two-day average temperature difference) and the average wind speed. Continued cold, rainy and windy weather morbidity. In addition, in the annual average air pressure level of the period are also significant differences in incidence of high to low air pressure. In the cold, wet and windy weather, a high incidence of coronary heart disease because of the cold stimulation, especially upwind Rush, easy to make the sympathetic nerve, the heart rate, blood pressure, circulation vasoconstriction, increased peripheral resistance, myocardial oxygen consumption increased the same time, can induce coronary artery spasm, allows sustained occlusion of the lumen, or squeeze the plaque so that intimal injury, platelet aggregation and thrombosis in the lumen acute blockage, can lead to acute myocardial infarction. In other words, green laser pointer with remote control can be used completely out of the control of the mouse.
Since the 1960s, the incidence of coronary heart disease and disability rate of significant decline. The reason, most scholars believe, is mainly due to lifestyle modification, to reduce the intake of cholesterol and smoking control, thereby reducing the occurrence of coronary heart disease risk factors. But in China, with the improvement of living standards, due to the impact of irrational dietary pattern, smoking and other risk factors of coronary heart disease incidence and mortality showed an increasing trend. A large number of epidemiological survey data indicate that the close relationship between dietary habits and coronary heart disease, high cholesterol food in level vegetarian, the incidence of coronary heart disease was significantly increased. Users can manipulate the receiver of laser pointer with remote control by clicking the related functional keys on the RF remote control.
Quit smoking and eat less fatty foods can reduce the incidence of heart disease. The United Nations survey conducted in 21 countries, findings show that reducing smoking and eat less fatty foods to be effective, reducing the incidence of heart disease. Published in the British medical weekly The Lancet report, developed heart failure and coronary heart disease mortality has declined to cite a few reasons. The plan is implemented under the United Nations World Health Organization. The goal is to compare the mid-1980s and the mid-1990s, heart attack morbidity and mortality to the age of 35 to 64-year-old men and women as research objects. The conclusion of the first part of the plan in May last year, it shows that the developed countries, especially in Northern Europe, the United States and Australia, the incidence of heart disease decreased. green laser includes red ray pointers.
China, the former Yugoslavia and parts of Russia the contrary rise. The reasons pointed out that the reduction in the incidence in the second part of the report are: the decline in the incidence of countries, men are smoking less, women's drop in blood pressure. During this period, weight gain a little attention to diet, blood cholesterol levels dropped by half. However, the most important reason is the accepted therapy in patients with heart disease in Western Europe better. In addition to a thrombolytic drugs, drugs to prevent vascular occlusion is easy to get, in addition, the surgeon uses a greatly improved method of coronary heart disease surgery. Climate change and coronary heart disease in place: the weather is cold weather or in winter and spring, the incidence of angina pectoris and myocardial infarction will increase. china laser pointer with remote control are various.
Three optimal factors and coronary heart disease: temperature, day variation (adjacent two-day average temperature difference) and the average wind speed. Continued cold, rainy and windy weather morbidity. In addition, in the annual average air pressure level of the period are also significant differences in incidence of high to low air pressure. In the cold, wet and windy weather, a high incidence of coronary heart disease because of the cold stimulation, especially upwind Rush, easy to make the sympathetic nerve, the heart rate, blood pressure, circulation vasoconstriction, increased peripheral resistance, myocardial oxygen consumption increased the same time, can induce coronary artery spasm, allows sustained occlusion of the lumen, or squeeze the plaque so that intimal injury, platelet aggregation and thrombosis in the lumen acute blockage, can lead to acute myocardial infarction. In other words, green laser pointer with remote control can be used completely out of the control of the mouse.
Monday, March 12, 2012
The screen with the help of laser pointer with remote control
This reduces the temperature difference between powder feeding cylinder and the working cylinder forming materials, reduce heating and other auxiliary time and improve work efficiency, and at the same time can reduce the warpage of parts. The temperature of the working environment to achieve closed-loop control, in real time to accurately control the temperature of the working environment. Machine rigidity, overall welded structure, surface aging treatment and grinding, to ensure the accuracy of machine and operating performance. All the software of the system by the company's own research and development, with independent intellectual property rights, my company's software has the following unique features: unique fault-tolerant slices of the STL file without the need to reprovision the correction software and manual correction. green laser pointer with remote control can help with the e-teaching.
Adaptive slicing function: that does not change the part of the part sliced cross-section, the computer automatically sets the larger spacing to improve production efficiency; Part slice cross-section changes in large part, the computer automatically sets the smaller the spacing, to reduce the stairs effect, improve part quality . Under the premise of ensuring part quality, significantly increase productivity. Zoning change to the scan. Improve forming efficiency while reducing the warpage amount. The new STL file compressed data storage, compressed to 1/2 ~ 1/3 the size of the STL file. Prototype production of the dynamic simulation. Can suitable for different uses high-performance, low-cost, non-toxic and harmless to the polymer powder materials. The user doesn’t need to walk towards the screen with the help of laser pointer with remote control .
Laser powder sintering rapid prototyping technology cost analysis. The use of equipment costs. HRPS-IV laser rapid prototyping system run time of 72,000 hours (20 hours / day x 30 days / month x 12 month / year x 10 years = 72000 hours), the price of 98 million yuan of equipment prices, during operation (10 years) maintenance costs of 500,000 yuan (50,000 yuan / year x 10 years = 500,000 yuan), then the hourly cost of the equipment for 34.58 yuan ( +50 million yuan (980,000 yuan) ÷ 72000 hours = 20.56 yuan / hour). Therefore, the use of equipment costs may be taken as 20.56 yuan / hour. The teacher can use green laser pointer with remote control in the corner in a classroom.
Note: The above costs are HRPS-V device to work state parameter data calculation from the maximum efficiency does not mean extreme conditions. Material consumption in the normal use of equipment will not be long-term maintenance per hour consumption. HRPS-IV equipment, the total power of about 10kw, normal operation, when the average power of about 30% of the total power, so the actual power consumption is about 3kw / hour. HRPS-V devices total power of about 20kw, normal operation, when the average power of about 30% of the total power, so the actual power consumption is about 6kw / hour. YAG laser texturing technology and equipment Introduction. Users can obtain fantastic convenience with green laser with remote control.
In order to produce high-quality cold-rolled sheet, high-quality coated board, companies need to work roll surface for hair treatment. Roll texturing, shot peening, but it is difficult to precisely control the surface morphology and roughness of the roll, To solve this problem, Institute of Mechanics Institute in 1994 successfully developed the technology and equipment of the YAG laser texturing roll Currently the technology has been applied in more than 10 enterprises in China has created billions of dollars in economic benefits for the enterprise to make a positive contribution to our cold-rolled strip products to enhance the level. The technology in 2007 was named to the National Science and Technology Invention. Many additional functions are integrated in china laser pointer with remote control.
Adaptive slicing function: that does not change the part of the part sliced cross-section, the computer automatically sets the larger spacing to improve production efficiency; Part slice cross-section changes in large part, the computer automatically sets the smaller the spacing, to reduce the stairs effect, improve part quality . Under the premise of ensuring part quality, significantly increase productivity. Zoning change to the scan. Improve forming efficiency while reducing the warpage amount. The new STL file compressed data storage, compressed to 1/2 ~ 1/3 the size of the STL file. Prototype production of the dynamic simulation. Can suitable for different uses high-performance, low-cost, non-toxic and harmless to the polymer powder materials. The user doesn’t need to walk towards the screen with the help of laser pointer with remote control .
Laser powder sintering rapid prototyping technology cost analysis. The use of equipment costs. HRPS-IV laser rapid prototyping system run time of 72,000 hours (20 hours / day x 30 days / month x 12 month / year x 10 years = 72000 hours), the price of 98 million yuan of equipment prices, during operation (10 years) maintenance costs of 500,000 yuan (50,000 yuan / year x 10 years = 500,000 yuan), then the hourly cost of the equipment for 34.58 yuan ( +50 million yuan (980,000 yuan) ÷ 72000 hours = 20.56 yuan / hour). Therefore, the use of equipment costs may be taken as 20.56 yuan / hour. The teacher can use green laser pointer with remote control in the corner in a classroom.
Note: The above costs are HRPS-V device to work state parameter data calculation from the maximum efficiency does not mean extreme conditions. Material consumption in the normal use of equipment will not be long-term maintenance per hour consumption. HRPS-IV equipment, the total power of about 10kw, normal operation, when the average power of about 30% of the total power, so the actual power consumption is about 3kw / hour. HRPS-V devices total power of about 20kw, normal operation, when the average power of about 30% of the total power, so the actual power consumption is about 6kw / hour. YAG laser texturing technology and equipment Introduction. Users can obtain fantastic convenience with green laser with remote control.
In order to produce high-quality cold-rolled sheet, high-quality coated board, companies need to work roll surface for hair treatment. Roll texturing, shot peening, but it is difficult to precisely control the surface morphology and roughness of the roll, To solve this problem, Institute of Mechanics Institute in 1994 successfully developed the technology and equipment of the YAG laser texturing roll Currently the technology has been applied in more than 10 enterprises in China has created billions of dollars in economic benefits for the enterprise to make a positive contribution to our cold-rolled strip products to enhance the level. The technology in 2007 was named to the National Science and Technology Invention. Many additional functions are integrated in china laser pointer with remote control.
Sunday, March 11, 2012
A piece of the hand strap is included for china laser pointer
See in order to show page and printed page in the Reading Layout toolbar, click the "actual page" on it. Graphics beyond the edges of the page. When you create a booklet, the best from the beginning of a new blank document, select Page Setup → Margins → book fold "the location of the mobile graphics and other elements can be easily However, if you want to create a book fold, re-adjust the position of the graphics can be set during the page in the existing document. You can try to use the horizontal and vertical rulers to help you to precisely place the location of the element. This kind of green laser pointer includes the safety lock.
Can not print graphics when you print a document. Resulting in two reasons: one possibility is to print in draft mode. Click the Options command on the Tools menu, click the Print tab, and then clear the Draft output check box; may be trying to print a link to the graphics domain code, and not the graphic itself . Click the Options command on the Tools menu, click "Print" tab. Clear the check box "field code". Printing results with preview. General this situation is occurring in a text editor, and common, such as Word or WPS2000, etc., obviously a neat format, print it out to find part of the font is overlap in the preview. laser pointer can irradiate as far as 12000ft.
This case are generally set incorrectly while editing fitness into its solution is to change the file "Page Properties" in the paper size, paper type, number of words per line, can generally be resolved. Print writing is not clear. This problem is very common in normal use printer, in general, this case and hardware failure related to encounter this problem generally should be noted that some of the key parts of the printer. We are here to inkjet printers, for example, encounter print fuzzy product color, the font is not clear, locking on a fault in the nozzle, the first automatic washing machine print head, if not successful you can use a soft absorbent than strong paper wipe near the place of the print head. And at the same time, green laser can be used in the indoor situation.
If the above method is still not resolved, only to re-install the printer driver. Can not print large files. More of this situation occurred in the laser printer may print a small file or normal, but will crash when printing large files, this problem is a software failure, you can check the remaining space on the hard disk, delete some useless file, or query the printer the amount of memory, whether the expansion. Select the printer after printing no response. Generally when this happens, the system usually will be prompted to "Please check whether the printer is online and cable connection is working. The general reason may be that the printer power cord is not plugged. A piece of the hand strap is included for china laser pointer .
Print cable is not properly connected; poor contact; damage to the computer parallel port situation. Solution are the following: If the printer print the power switch is pressed to start normally, went into the BIOS set up inside to see the parallel port settings. General printer is ECP mode, some printers do not support ECP mode, available to the ECP + EPP, or "Normal" mode. If the above two methods are invalid, you need to focus on checking the print cable, first turn off the computer to print cable, two pull down and re-plug, Note Do not plug or unplug. If the problem can not be resolved, change the print to cable to try, or alternative method. The customer can wrap the hand strap of green laser pointer around the wrist.
Can not print graphics when you print a document. Resulting in two reasons: one possibility is to print in draft mode. Click the Options command on the Tools menu, click the Print tab, and then clear the Draft output check box; may be trying to print a link to the graphics domain code, and not the graphic itself . Click the Options command on the Tools menu, click "Print" tab. Clear the check box "field code". Printing results with preview. General this situation is occurring in a text editor, and common, such as Word or WPS2000, etc., obviously a neat format, print it out to find part of the font is overlap in the preview. laser pointer can irradiate as far as 12000ft.
This case are generally set incorrectly while editing fitness into its solution is to change the file "Page Properties" in the paper size, paper type, number of words per line, can generally be resolved. Print writing is not clear. This problem is very common in normal use printer, in general, this case and hardware failure related to encounter this problem generally should be noted that some of the key parts of the printer. We are here to inkjet printers, for example, encounter print fuzzy product color, the font is not clear, locking on a fault in the nozzle, the first automatic washing machine print head, if not successful you can use a soft absorbent than strong paper wipe near the place of the print head. And at the same time, green laser can be used in the indoor situation.
If the above method is still not resolved, only to re-install the printer driver. Can not print large files. More of this situation occurred in the laser printer may print a small file or normal, but will crash when printing large files, this problem is a software failure, you can check the remaining space on the hard disk, delete some useless file, or query the printer the amount of memory, whether the expansion. Select the printer after printing no response. Generally when this happens, the system usually will be prompted to "Please check whether the printer is online and cable connection is working. The general reason may be that the printer power cord is not plugged. A piece of the hand strap is included for china laser pointer .
Print cable is not properly connected; poor contact; damage to the computer parallel port situation. Solution are the following: If the printer print the power switch is pressed to start normally, went into the BIOS set up inside to see the parallel port settings. General printer is ECP mode, some printers do not support ECP mode, available to the ECP + EPP, or "Normal" mode. If the above two methods are invalid, you need to focus on checking the print cable, first turn off the computer to print cable, two pull down and re-plug, Note Do not plug or unplug. If the problem can not be resolved, change the print to cable to try, or alternative method. The customer can wrap the hand strap of green laser pointer around the wrist.
Friday, March 9, 2012
The mini portable size of green laser pointer can be customized
Industrial lasers, and other aspects have to reach or approach international advanced level, some of the enterprises and products accounted for a larger market share, initially with the ability to participate in international competition in China's accession to the WTO, the World photoelectron information industry is entering a stage of accelerated development, leaving limited to our time, if we do not currently industrialization of the early stage of technological development to pay close attention to access, will lose to close the gap and catch up with class "a golden opportunity. World photoelectron information industry rapid development of the enormous market opportunity, the World optoelectronic information industry began in the 1970s, the period of rapid development in the 1990s. The customer can select the laser beam color of green laser pointer .
With the rapid development of Internet business and communications industry, photoelectron information industry worldwide, has also been a significant increase (up to 30% average annual growth rate since 1992 or so), the global market in 1999 reached $ 180 billion in future years, the average annual growth rate of photoelectron information industry for more than 20% bound to become one of the most important pillar industry of the 21st century. development opportunities brought about by the global industrial restructuring, the emerging global industrial restructuring in China photoelectron information industry has brought a rare opportunity for development and low production costs, labor quality has attracted many famous the photoelectron multinational companies have set up plants in China. Selection of laser pointer should be done according to their actual needs of themselves.
China is becoming the world's developed countries and the layout of industry, market expansion, the first choice of the allocation of resources, development opportunities brought about by the fierce domestic competition, at present, the country has in Wuhan, Shanghai, Beijing, Guangdong, Changchun, more than 10 provinces and municipalities to seek a breakthrough in the development of optoelectronic information industry. Beijing, Shanghai and clearly should give full play to the advantages of industry and policy, the extraordinary development of optoelectronic information industry; Changchun take full advantage of ray machine of a number of key research institutes and production enterprises, and established a joint photoelectron industry Park "; Guangdong market for technology cooperation for projects, extraordinary momentum. In addition, Xi'an, Chengdu, Hefei, Ningbo, also take full advantage of the characteristics and advantages, and strive to seize a place in the field of optoelectronic information industry. The real using condition and situation of the location where green laser will be used should be considered.
This constant progress, striving to grab before the competitive situation will greatly accelerate the development of photoelectron information industry in China. Opportunities and challenges, compared with developed countries, China's optoelectronic information industry facing the industry is small, the manufacturing level limited materials, the combination of techno-economic and effective mechanism has not yet formed, the war for talent is becoming hotter and so many challenges, Wuhan optoelectronic information industry basis in reality, the talent base, 50 square kilometers within the scope of the Wuhan Donghu New Technology Development Zone concentration of 18 universities, 56 subordinate research institutes, 65 national key disciplines, 10 national key laboratories, 7 national Engineering Research Center, 43 academicians and more than 20 000 various professional scientific and technical personnel, 350,000 college students each year more than 50,000 students in all directions from here. The size of china laser pointer can also be customized by the customer.
Wuhan East Lake High-tech Development Zone, is second only to Beijing's Zhongguancun, China's second largest intelligence-intensive areas, has a very rich high-tech human resources, the technical basis for the past 10 years, under the support of the relevant state ministries, Wuhan in optoelectronics field of information technology has made leaps and bounds, resulting in a large number of high-tech achievements, China's wide range of disciplines, scientific research strength, the unique optoelectronic IT research and development base. Wuhan Youkeyuan in optical communication technology, IP technology The level of the field of research and development remains the leading domestic and international advanced position, the first root of the practical fiber optical communication line was born in Wuhan Youkeyuan. The mini portable size of green laser pointer can be customized.
With the rapid development of Internet business and communications industry, photoelectron information industry worldwide, has also been a significant increase (up to 30% average annual growth rate since 1992 or so), the global market in 1999 reached $ 180 billion in future years, the average annual growth rate of photoelectron information industry for more than 20% bound to become one of the most important pillar industry of the 21st century. development opportunities brought about by the global industrial restructuring, the emerging global industrial restructuring in China photoelectron information industry has brought a rare opportunity for development and low production costs, labor quality has attracted many famous the photoelectron multinational companies have set up plants in China. Selection of laser pointer should be done according to their actual needs of themselves.
China is becoming the world's developed countries and the layout of industry, market expansion, the first choice of the allocation of resources, development opportunities brought about by the fierce domestic competition, at present, the country has in Wuhan, Shanghai, Beijing, Guangdong, Changchun, more than 10 provinces and municipalities to seek a breakthrough in the development of optoelectronic information industry. Beijing, Shanghai and clearly should give full play to the advantages of industry and policy, the extraordinary development of optoelectronic information industry; Changchun take full advantage of ray machine of a number of key research institutes and production enterprises, and established a joint photoelectron industry Park "; Guangdong market for technology cooperation for projects, extraordinary momentum. In addition, Xi'an, Chengdu, Hefei, Ningbo, also take full advantage of the characteristics and advantages, and strive to seize a place in the field of optoelectronic information industry. The real using condition and situation of the location where green laser will be used should be considered.
This constant progress, striving to grab before the competitive situation will greatly accelerate the development of photoelectron information industry in China. Opportunities and challenges, compared with developed countries, China's optoelectronic information industry facing the industry is small, the manufacturing level limited materials, the combination of techno-economic and effective mechanism has not yet formed, the war for talent is becoming hotter and so many challenges, Wuhan optoelectronic information industry basis in reality, the talent base, 50 square kilometers within the scope of the Wuhan Donghu New Technology Development Zone concentration of 18 universities, 56 subordinate research institutes, 65 national key disciplines, 10 national key laboratories, 7 national Engineering Research Center, 43 academicians and more than 20 000 various professional scientific and technical personnel, 350,000 college students each year more than 50,000 students in all directions from here. The size of china laser pointer can also be customized by the customer.
Wuhan East Lake High-tech Development Zone, is second only to Beijing's Zhongguancun, China's second largest intelligence-intensive areas, has a very rich high-tech human resources, the technical basis for the past 10 years, under the support of the relevant state ministries, Wuhan in optoelectronics field of information technology has made leaps and bounds, resulting in a large number of high-tech achievements, China's wide range of disciplines, scientific research strength, the unique optoelectronic IT research and development base. Wuhan Youkeyuan in optical communication technology, IP technology The level of the field of research and development remains the leading domestic and international advanced position, the first root of the practical fiber optical communication line was born in Wuhan Youkeyuan. The mini portable size of green laser pointer can be customized.
They should increase the life time of the chip of laser pointer
Or check the printer cable is poor contact; Finally, there may be a computer virus can kill again poison. Expert Tip: the virus can also affect the printer to work properly, it will cause the computer to some inexplicable error, in order to ensure the normal use of the printer, often to the computer virus. Printer paper always prompt out of paper. Phenomenon: printer paper, but the printer always prompt out of paper. Exclude: It may be because the printer connection or interface damage caused by a connection error, replace a cable to see if the problem can be resolved; due to errors in the old version of the driver or drivers, you can reinstall the driver or driver upgrade ( drivers generally can be found on the manufacturer's website). Increase the life time of the laser module so that the quality and life time of green laser pointer can be prolonged.
Dust accumulation on the printer sensor or printer physical failure, need to clean the sensor or get the vendor to repair. Phenomenon: the control panel indicator light will glow, and to return the computer to an alarm signal. Reason: Forgot to close the cover, the printer prints out a paper, printing paper and sub-standard, the feed rollers not functioning properly, the paper path for paper scraps, shredded paper and other foreign objects, Tray not installed properly, the paper quality is not good ( too thin, too thick, damp), the paper sensor error. Exclusion: a jam occurs, do not be impatient, open the front cover, take the paper feed direction. They should increase the life time of the chip of laser pointer .
Mean forced hands to take the paper, gently pulling the jammed paper, slowly the jammed paper from the printer, take out, must not reverse direction or the opposite direction of rotation of any knob. Removed, you should turn off the printer power. If jams occur frequently, it is necessary to check the paper path, remove debris from the output path, the front edge of the paper just before the top of the metal plate; check out the roller is worn or loose spring, the pressure is not enough, that is not paper fed into the machine; the paper roll wear, and sometimes can not be replaced when the available winding the rubber band approach for emergency treatment, wound rubber band, increasing the friction of rubbing paper, can feed back to normal. The customer uses green laser under the better condition in the appropriate method.
Expert Tip: cardboard such failure is very common, there may be internal factors of the machine, but there are a large proportion is due to improper use. Sometimes do not have any paper inside the printer, but the printer has prompted a paper jam, this time do to clear the memory operation (clear memory operation of each printer is different, you can call the free service hotline of the manufacturer to the Engineer consulting). Is also important to ensure the quality of the printing paper, excellent texture paper is undoubtedly very suitable to prevent printer jams. Before installing the printing paper, the first paper the same as open book page open a few times, to ensure that every piece of paper can be individually separated, to prevent electrostatic induction cause a jam, but also to avoid the paper damp. When the customer chooses or selects china laser pointer .
Sometimes reused paper will lead to a jam occurred. The printer can not detect the ink type. Phenomenon: the printer can not detect the ink type or print out the characters ambiguous. Excluded: first cleaning the print head (where the printer driver clean the print head command, direct use of the command), if the long did not use the printer, it is necessary to more than cleaning a few times, the method is to remove the cartridge place near the print head with a soft, absorbent paper, clean, if not solve the problem, it may be a problem with the printer driver with the printer driver can be re-loaded again, the general can solve the problem. Of course, the customer will consider the life time of green laser pointer as the most important factor when they buy the laser pointer.
Dust accumulation on the printer sensor or printer physical failure, need to clean the sensor or get the vendor to repair. Phenomenon: the control panel indicator light will glow, and to return the computer to an alarm signal. Reason: Forgot to close the cover, the printer prints out a paper, printing paper and sub-standard, the feed rollers not functioning properly, the paper path for paper scraps, shredded paper and other foreign objects, Tray not installed properly, the paper quality is not good ( too thin, too thick, damp), the paper sensor error. Exclusion: a jam occurs, do not be impatient, open the front cover, take the paper feed direction. They should increase the life time of the chip of laser pointer .
Mean forced hands to take the paper, gently pulling the jammed paper, slowly the jammed paper from the printer, take out, must not reverse direction or the opposite direction of rotation of any knob. Removed, you should turn off the printer power. If jams occur frequently, it is necessary to check the paper path, remove debris from the output path, the front edge of the paper just before the top of the metal plate; check out the roller is worn or loose spring, the pressure is not enough, that is not paper fed into the machine; the paper roll wear, and sometimes can not be replaced when the available winding the rubber band approach for emergency treatment, wound rubber band, increasing the friction of rubbing paper, can feed back to normal. The customer uses green laser under the better condition in the appropriate method.
Expert Tip: cardboard such failure is very common, there may be internal factors of the machine, but there are a large proportion is due to improper use. Sometimes do not have any paper inside the printer, but the printer has prompted a paper jam, this time do to clear the memory operation (clear memory operation of each printer is different, you can call the free service hotline of the manufacturer to the Engineer consulting). Is also important to ensure the quality of the printing paper, excellent texture paper is undoubtedly very suitable to prevent printer jams. Before installing the printing paper, the first paper the same as open book page open a few times, to ensure that every piece of paper can be individually separated, to prevent electrostatic induction cause a jam, but also to avoid the paper damp. When the customer chooses or selects china laser pointer .
Sometimes reused paper will lead to a jam occurred. The printer can not detect the ink type. Phenomenon: the printer can not detect the ink type or print out the characters ambiguous. Excluded: first cleaning the print head (where the printer driver clean the print head command, direct use of the command), if the long did not use the printer, it is necessary to more than cleaning a few times, the method is to remove the cartridge place near the print head with a soft, absorbent paper, clean, if not solve the problem, it may be a problem with the printer driver with the printer driver can be re-loaded again, the general can solve the problem. Of course, the customer will consider the life time of green laser pointer as the most important factor when they buy the laser pointer.
Wednesday, March 7, 2012
China laser pointer integrates with various technologies
Gaussian surface heat source distribution is a more realistic than the point-like source of heat and linear heat source, heat source distribution function near Gaussian distribution of surface heat source in the form used in this paper, the heat flux distribution function: where, as the material The laser absorption coefficient, P is the laser power, R is the beam radius, r is the distance from the center of the spot inspection point. In the laser cleaning process of the mold surface, the laser energy in the form of heat flux loaded into the mold surface, and move to a certain speed, thus using the ANSYS parametric design language to establish the load matrix form discrete space domain to the time domain, different locations at different times of the heat source load input, and set a certain time of step, so that you can simulate the mold surface temperature field. green laser pointer possesses the function of the laser pen.
Thermal parameters of the determination. The molds are generally made from 45 steel or carbon steel, 45 steel as an example. For 45 steel, its density and temperature changes is not large, constant handling, did not affect the final result. Here, the manual check of 45 steel of density 7833 kg/m3, The specific heat capacity, thermal conductivity, such as temperature affects the large thermal parameters of input, to ensure the accuracy of the calculations must be based on the data in table 1. Manual investigation of 45 steel specific heat capacity, thermal conductivity and temperature is shown in Table 1. Figure 1 division of the grid after the mold surface. In this paper, the ambient temperature to 20 ° C, air, natural convection heat transfer coefficient of 12.5W / (m2 ? ° C). All extra functions of laser pointer has the common feature of remote control.
Modeling and meshing. Analysis of temperature field of the laser cleaning mold, due mainly to the mold surface temperature distribution, so we choose the 2D field analysis, which can greatly simplify the calculation process. Mold surface right angle vertex coordinates (-0.045, -0.03) and (0.045,0.03). On the mold surface of meshing, it is assumed that the laser is along the middle of the mold cleaning mold surface, so to mold the middle of the grid refinement, the division of the mold surface shown in Figure 1. Temperature field and thermal boundary conditions. According to the theory of heat transfer, without internal heat source, non-steady-state two-dimensional temperature field, heat conduction differential equation for the. green laser is also the related products of multifunctional projecting equipments.
Boundary conditions: Q is the unit volume heat generation rate, h is the surface to put where: ρ, c and λ, respectively, the material density, specific heat, thermal conductivity; T-Tf, respectively, for the transient temperature, medium temperature; heat transfer coefficient; Γ, n respectively, the solid boundary and the outward normal; t is time. Simulation results and discussion. The nodal temperature distribution analysis. Figure 2 reflects the laser power of 50W, the scanning speed of 3.5mm / s, at different times of the mold surface node temperature distribution, which in Figure 2 (a) t = 2s, Figure 2 (b), t = 6s, Figure 2 (c) t = 10 s, in Figure 2 (d) t = 14s in Figure 2 (e) t = 20s in Figure 2 (f), t = 26 s. china laser pointer integrates with various technologies.
It can be seen, with the moving laser heat source to a certain speed is loaded into the surface of the mold, the mold surface temperature distribution also changes with the movement of the laser heat source, showing a comet-like tail dragging, and scanned with the laser the range of the heat-affected zone is growing increasingly evident, the dynamic characteristics of the temperature field in the front end of the laser irradiation temperature gradient, the tail of the temperature gradient is relatively small, fast-moving laser heat source. Table 145 steel heat capacity, thermal conductivity and temperature. Figure 2 at different times of the nodal temperature distribution of the temperature of the mold surface node. Temperature of the mold surface node. The wireless mouse control technology is one of the technical bases of green laser pointer .
Thermal parameters of the determination. The molds are generally made from 45 steel or carbon steel, 45 steel as an example. For 45 steel, its density and temperature changes is not large, constant handling, did not affect the final result. Here, the manual check of 45 steel of density 7833 kg/m3, The specific heat capacity, thermal conductivity, such as temperature affects the large thermal parameters of input, to ensure the accuracy of the calculations must be based on the data in table 1. Manual investigation of 45 steel specific heat capacity, thermal conductivity and temperature is shown in Table 1. Figure 1 division of the grid after the mold surface. In this paper, the ambient temperature to 20 ° C, air, natural convection heat transfer coefficient of 12.5W / (m2 ? ° C). All extra functions of laser pointer has the common feature of remote control.
Modeling and meshing. Analysis of temperature field of the laser cleaning mold, due mainly to the mold surface temperature distribution, so we choose the 2D field analysis, which can greatly simplify the calculation process. Mold surface right angle vertex coordinates (-0.045, -0.03) and (0.045,0.03). On the mold surface of meshing, it is assumed that the laser is along the middle of the mold cleaning mold surface, so to mold the middle of the grid refinement, the division of the mold surface shown in Figure 1. Temperature field and thermal boundary conditions. According to the theory of heat transfer, without internal heat source, non-steady-state two-dimensional temperature field, heat conduction differential equation for the. green laser is also the related products of multifunctional projecting equipments.
Boundary conditions: Q is the unit volume heat generation rate, h is the surface to put where: ρ, c and λ, respectively, the material density, specific heat, thermal conductivity; T-Tf, respectively, for the transient temperature, medium temperature; heat transfer coefficient; Γ, n respectively, the solid boundary and the outward normal; t is time. Simulation results and discussion. The nodal temperature distribution analysis. Figure 2 reflects the laser power of 50W, the scanning speed of 3.5mm / s, at different times of the mold surface node temperature distribution, which in Figure 2 (a) t = 2s, Figure 2 (b), t = 6s, Figure 2 (c) t = 10 s, in Figure 2 (d) t = 14s in Figure 2 (e) t = 20s in Figure 2 (f), t = 26 s. china laser pointer integrates with various technologies.
It can be seen, with the moving laser heat source to a certain speed is loaded into the surface of the mold, the mold surface temperature distribution also changes with the movement of the laser heat source, showing a comet-like tail dragging, and scanned with the laser the range of the heat-affected zone is growing increasingly evident, the dynamic characteristics of the temperature field in the front end of the laser irradiation temperature gradient, the tail of the temperature gradient is relatively small, fast-moving laser heat source. Table 145 steel heat capacity, thermal conductivity and temperature. Figure 2 at different times of the nodal temperature distribution of the temperature of the mold surface node. Temperature of the mold surface node. The wireless mouse control technology is one of the technical bases of green laser pointer .
Tuesday, March 6, 2012
The safety lock of green laser pointer attracts more customers
Some laser welding a thin layer of rust-proof material on the surface plating, but the anti-rust plated layer is too thick, otherwise it will affect the welding quality, because this anti-rust layer is equivalent to impurities in the welding process. The welding wire of the mirror mold, but not suitable for anti-rust layer plating. Wire to use to seal the bag, put the moisture beads, stored in a dry environment. On the long-term air-conditioned environment, can be stored for six months to a year will not rust. If the wire rust, surface rust with sandpaper layer hit bright, you can use without affecting the welding quality. The appearance of this kind of green laser pointer is firm and attractive.
Of the more common German wire model is MOLD, MOLD 50 MOLD 55 MOLD 90. Where a diameter of 0.3mm, 0.4mm and 0.5mm common wire stock in the domestic stock. If you want to order a special wire is from the German order, depending on order quantity and delivery in a week to three weeks. Wire model of choice, mainly based on the use and hardness of the mold. However, each use of laser welding parameters to the wire when choosing a wire model, instructions for use as a reference, based on the laser welding parameters and operating habits. With the diversity of scientific and technological development and social needs, the products more competitive, the replacement cycle is getting shorter. This kind of china laser pointer also can be used by the explorer.
To this end, the requirements can not only design new products according to market requirements as soon as possible, and within the shortest possible time to create a prototype, performance testing and modifying, and ultimately the formation of styling products. In traditional manufacturing systems, requires a lot of mold design, manufacture and commissioning work, high cost, long cycle and can not adapt to rapid changes in the market. In order to improve the speed of development and production, quickly and accurately to produce high-quality, low-cost molds and products to make agile response to market changes, people made a lot of research and exploration. With the falling prices of industrial lasers and industrial laser processing technology has become more sophisticated, brought significant changes to the mold making and production processes. This paper first introduces the industrial processing lasers. At the same time the use of the safety lock of laser pointer is easy enough for the customer.
Then in the mold of laser manufacturing, mold laser surface strengthening and replacement, mold laser repair, mold laser cleaning aspects are introduced and analyzed. Industrial processing lasers. At present, industrial lasers used for laser processing are mainly two categories: solid-state lasers and gas lasers. Among them, solid-state lasers, Nd: YAG laser as the representative; gas lasers are the CO2 laser as the representative. With the development of laser technology, also began to use in some processing applications, high-power fiber lasers and high power semiconductor lasers. Nd: YAG lasers, laser material for solid-state Nd: of YAG rod, the laser wavelength of 1.06μm. It is the specifications of green laser ZMP005.
Due to the low laser conversion efficiency of the laser, while subject to the restrictions of the YAG rod volume and thermal conductivity, laser average output power is not high. However, due to the Nd: YAG laser can be compressed by the Q-switched laser output pulse width, the availability of high pulse peak power (108W) for processing applications requiring high peak power laser; another big advantage through the optical fiber transmission, to avoid the complex transmission design of the optical path, a very useful three-dimensional processing. In addition, technology by the third harmonic of the laser wavelength is converted to 355nm (UV) laser three-dimensional shape technology. The safety lock of green laser pointer attracts more customers.
Of the more common German wire model is MOLD, MOLD 50 MOLD 55 MOLD 90. Where a diameter of 0.3mm, 0.4mm and 0.5mm common wire stock in the domestic stock. If you want to order a special wire is from the German order, depending on order quantity and delivery in a week to three weeks. Wire model of choice, mainly based on the use and hardness of the mold. However, each use of laser welding parameters to the wire when choosing a wire model, instructions for use as a reference, based on the laser welding parameters and operating habits. With the diversity of scientific and technological development and social needs, the products more competitive, the replacement cycle is getting shorter. This kind of china laser pointer also can be used by the explorer.
To this end, the requirements can not only design new products according to market requirements as soon as possible, and within the shortest possible time to create a prototype, performance testing and modifying, and ultimately the formation of styling products. In traditional manufacturing systems, requires a lot of mold design, manufacture and commissioning work, high cost, long cycle and can not adapt to rapid changes in the market. In order to improve the speed of development and production, quickly and accurately to produce high-quality, low-cost molds and products to make agile response to market changes, people made a lot of research and exploration. With the falling prices of industrial lasers and industrial laser processing technology has become more sophisticated, brought significant changes to the mold making and production processes. This paper first introduces the industrial processing lasers. At the same time the use of the safety lock of laser pointer is easy enough for the customer.
Then in the mold of laser manufacturing, mold laser surface strengthening and replacement, mold laser repair, mold laser cleaning aspects are introduced and analyzed. Industrial processing lasers. At present, industrial lasers used for laser processing are mainly two categories: solid-state lasers and gas lasers. Among them, solid-state lasers, Nd: YAG laser as the representative; gas lasers are the CO2 laser as the representative. With the development of laser technology, also began to use in some processing applications, high-power fiber lasers and high power semiconductor lasers. Nd: YAG lasers, laser material for solid-state Nd: of YAG rod, the laser wavelength of 1.06μm. It is the specifications of green laser ZMP005.
Due to the low laser conversion efficiency of the laser, while subject to the restrictions of the YAG rod volume and thermal conductivity, laser average output power is not high. However, due to the Nd: YAG laser can be compressed by the Q-switched laser output pulse width, the availability of high pulse peak power (108W) for processing applications requiring high peak power laser; another big advantage through the optical fiber transmission, to avoid the complex transmission design of the optical path, a very useful three-dimensional processing. In addition, technology by the third harmonic of the laser wavelength is converted to 355nm (UV) laser three-dimensional shape technology. The safety lock of green laser pointer attracts more customers.
Monday, March 5, 2012
The power of green laser pointer is 5mw-10mw
Semiconductor lasers with semiconductor material as the working substance of a class of lasers, due to differences in physical structure, the specific process of laser-generated rather special. Commonly used material gallium arsenide (GaAs), cadmium sulfide (CdS), indium phosphide (InP), zinc sulfide (ZnS), etc. Incentives and electricity into the electron beam excitation and optical pumping in three forms. Semiconductor laser devices can be divided into homojunction, single heterojunction, and other types of double-heterostructure. Homojunction lasers and single-heterostructure laser pulse at room temperature and more devices, and double-heterostructure lasers can achieve continuous operation at room temperature. china laser pointer is wrapped in the budget.
Semiconductor lasers based on semiconductor materials, do some physical work generated by the stimulated emission devices for the working principle is, by some incentives, in the semiconductor material of the band (the conduction band and valence band), or between the semiconductor material The band and impurity (acceptor or donor) level between the non-equilibrium carriers to achieve the population inversion, when inversion state in a large number of electron and hole recombination, the role of stimulated emission arises Semiconductor lasers, there are three main incentives that power injection, optical pump-and high-energy electron beam excitation type. power semiconductor laser injection, usually by GaAS (gallium arsenide), InAS (InAs), Insb ( InSb) semiconductor materials such as junction diodes along the forward bias injection current for incentives, in the end surface area produced by stimulated emission. The package of green laser is very special.
Optically pumped semiconductor lasers, generally with N-or P-type semiconductor crystals (such as GaAS, InAs, InSb, etc.) to do the work material, issued by other lasers for optical pumping of laser excitation. High-energy electron beam excitation semiconductor laser, is generally with N-type or P-type semiconductor crystals (such as PbS, CdS, ZhO, etc.) to do the work material, through high-energy electron beam injected from the outside to inspire in the semiconductor laser device, the current performance is better, broader application is a two- heterostructure GaAs diode laser power injection. semiconductor laser works by incentives, the use of semiconductor materials (both electronic) transitions in the band between the light-emitting, semiconductor crystal cleavage plane to form two parallel mirrors as reflectors to form the cavity so that the light oscillation, feedback, resulting in amplification of light radiation, the output laser. The power of green laser pointer is 5mw-10mw.
Semiconductor lasers lasers advantage of small size, light weight, reliable operation, low power consumption and high efficiency. Semiconductor laser packaging technology, mostly in discrete packaging technology based on the development and evolved, but have great specificity. In general, discrete devices die is sealed in the package body, the main role of packaging is to protect the die and complete the electrical interconnection. The semiconductor laser package is the complete output signal, to protect the die work, output: visible features, both electrical parameters, there are optical parameters of design and technical requirements, not simply discrete package for semiconductor lasers . Effective range of laser pointer is more than 1000m.
Part of the core light-emitting semiconductor laser is p-type and n-type semiconductor pn junction consisting of the die, when injected into the pn junction of the minority carrier and majority carrier recombination time, we will send visible light, ultraviolet light or near infrared light. But pn junction emit photons non-directional, ie fired in all directions have the same probability, therefore, not all the light generated by the die can be released, depending on the quality of semiconductor materials, structure and geometry of the die , the internal structure and encapsulation materials, packaging, semiconductor lasers application requirements to improve internal and external quantum efficiency. Distance of remote control of laser pointer pen is about 15m.
Semiconductor lasers based on semiconductor materials, do some physical work generated by the stimulated emission devices for the working principle is, by some incentives, in the semiconductor material of the band (the conduction band and valence band), or between the semiconductor material The band and impurity (acceptor or donor) level between the non-equilibrium carriers to achieve the population inversion, when inversion state in a large number of electron and hole recombination, the role of stimulated emission arises Semiconductor lasers, there are three main incentives that power injection, optical pump-and high-energy electron beam excitation type. power semiconductor laser injection, usually by GaAS (gallium arsenide), InAS (InAs), Insb ( InSb) semiconductor materials such as junction diodes along the forward bias injection current for incentives, in the end surface area produced by stimulated emission. The package of green laser is very special.
Optically pumped semiconductor lasers, generally with N-or P-type semiconductor crystals (such as GaAS, InAs, InSb, etc.) to do the work material, issued by other lasers for optical pumping of laser excitation. High-energy electron beam excitation semiconductor laser, is generally with N-type or P-type semiconductor crystals (such as PbS, CdS, ZhO, etc.) to do the work material, through high-energy electron beam injected from the outside to inspire in the semiconductor laser device, the current performance is better, broader application is a two- heterostructure GaAs diode laser power injection. semiconductor laser works by incentives, the use of semiconductor materials (both electronic) transitions in the band between the light-emitting, semiconductor crystal cleavage plane to form two parallel mirrors as reflectors to form the cavity so that the light oscillation, feedback, resulting in amplification of light radiation, the output laser. The power of green laser pointer is 5mw-10mw.
Semiconductor lasers lasers advantage of small size, light weight, reliable operation, low power consumption and high efficiency. Semiconductor laser packaging technology, mostly in discrete packaging technology based on the development and evolved, but have great specificity. In general, discrete devices die is sealed in the package body, the main role of packaging is to protect the die and complete the electrical interconnection. The semiconductor laser package is the complete output signal, to protect the die work, output: visible features, both electrical parameters, there are optical parameters of design and technical requirements, not simply discrete package for semiconductor lasers . Effective range of laser pointer is more than 1000m.
Part of the core light-emitting semiconductor laser is p-type and n-type semiconductor pn junction consisting of the die, when injected into the pn junction of the minority carrier and majority carrier recombination time, we will send visible light, ultraviolet light or near infrared light. But pn junction emit photons non-directional, ie fired in all directions have the same probability, therefore, not all the light generated by the die can be released, depending on the quality of semiconductor materials, structure and geometry of the die , the internal structure and encapsulation materials, packaging, semiconductor lasers application requirements to improve internal and external quantum efficiency. Distance of remote control of laser pointer pen is about 15m.
Subscribe to:
Posts (Atom)