Adapter cleaning available dedicated compressed air or skim alcohol sliver cleaning.
Heating rate. Laser energy within hundredths of a second to thousandths of a second or less time, the parts near the surface heating at the temperature quickly rose to above 1000 ℃, heated to high temperature, holding time is extremely short, so the heating condition with conventional heating methods have a great deal of difference. The formation of austenite for eutectoid steel, conventional heating rate conditions, the steel is heated to above AC1. Formation of austenite is achieved through nucleation and growth process, the basic process includes: 1) austenite nuclei formed at the interface of ferrite and cementite; 2) the growth of austenite; ) the continuation of the residual cementite dissolution;) austenite homogenization process. Sub-eutectoid steel and over eutectoid steel of austenite formation process and common analysis of steel is essentially similar to, but the increase in excess of the phase transformation and dissolution characteristics have. green laser pointer ensures that the voice being transmitted is clear and with high quality.
The cooling rate in Figure 2 the isothermal cooling transformation C curve (TTT diagram) the merger of C curve and continuous cooling transformation (CCT diagram) schematic. Which abc curve for the isothermal transformation of austenite to the pearl breaks and Bayesian start line, Ms is the martensite transformation start line a 'b' c 'is the austenite to pearl size bainite isothermal transformation End of line. Abc line above the left and Ms line for supercooled austenite region (breeding area), austenite above the A1 temperature rapidly cooled to below the Ms temperature, rather than meet with the abc line is not transformed into pearlite or bainite, can only be transformed into martensite. Under continuous cooling conditions, due to the undercooling.Ease of coating and uniform thickness. The weight of the transmitting terminal (including the batteries of green laser pointer ) and the receiving terminal is 60g.Non-interface growth of grain, grain refinement, otherwise the interface growth of columnar grains, grain refinement. Where N0 is the number of cores per unit volume of heterogeneous, △ of TN for the critical nucleation undercooling △ Tc is the front of the interface undercooling, the value (map VC0 / A) 1/2, C0 is the alloy content, A is a constant. Is clearly whether grain refinement and the number of nucleation agent, the nucleation undercooling and solidification rate, the alloy concentration dependent, rather than just depending on the cooling rate. It can be seen from the above equation, the laser rapidly solidified, there are many conditions not conducive to grain refinement. First, the high cooling rate is often accompanied by a high temperature gradient, high temperature gradient to promote the formation of the interface growth of columnar crystals. The computer will install the software of green laser pointer automatically.
Tuesday, December 25, 2012
Sunday, December 23, 2012
the laser crystal rods the size was relatively large
We add the new design to our products of green laser pointer with star cap
Strictly speaking, belong to a kind of end-pumped. Modern high-power fiber laser pump source is a high-power multimode diode around through a double-clad single-mode fiber heart. In the 1970s, a
single-mode fiber lasers to replace the idea was first proposed multi-mode solid-state lasers or broadband semiconductor laser diode emission output. Simple double-clad fiber structure in an axial
single-mode glass fiber heart laced with laser ion one would expect, such as rubidium, bait, Peter, thulium. Core fiber layer diameter several times that of non-doped glass cladding surrounded,
with a lower refractive index. The name of this kind of green laser pointer is super bright green laser pointer with key lock.This type of laser technology as foreign, such as the United States
Coherent, Spectra Physics, Germany antics take, possession the Belarus Solar and other large companies, so can be considered: the level of development of high peak power laser frequency conversion
technology, is directly related or restrict the level of domestic development of laser technology, and influence the development of laser applications in industry, in national economic development
is of strategic significance. Because the laser pulse peak power and pulse energy is proportional to and inversely proportional to the pulse width, so in order to get a higher peak power, or to
achieve higher energy output, or shorten the pulse width. Insight into this type of laser technology features and to achieve a further breakthrough of great significance. The wavelength of the
laser light of green laser pointer contains 405nm and 445nm which emit blue violet laser beam.
Energy of the high beam quality laser the VRMs non-unstable resonator cavity design to achieve high energy beam quality laser output, conventional stable cavity design is obviously far from being
able to meet the requirements. At this point, the laser crystal rods the size was relatively large, the cavity design of the traditional stability, it is difficult to achieve the fundamental mode
radius is larger than 1mm of stable output; traditional unstable resonator, can increase the volume of the fundamental mode , and yet there are hard-edge diffraction and near-field ripple [4], with
variable reflectivity output mirror (VRM) [5], combined with the repetition rate requirements, the choice of appropriate magnification can generally achieve high beam quality laser output . VRM
unstable resonator optical path shown in Figure 1. The wavelength of green laser pointer contains 589nm which emits yellow laser beam.This kind of 5 in 1 green laser pointer equips with 5 different
caps
Strictly speaking, belong to a kind of end-pumped. Modern high-power fiber laser pump source is a high-power multimode diode around through a double-clad single-mode fiber heart. In the 1970s, a
single-mode fiber lasers to replace the idea was first proposed multi-mode solid-state lasers or broadband semiconductor laser diode emission output. Simple double-clad fiber structure in an axial
single-mode glass fiber heart laced with laser ion one would expect, such as rubidium, bait, Peter, thulium. Core fiber layer diameter several times that of non-doped glass cladding surrounded,
with a lower refractive index. The name of this kind of green laser pointer is super bright green laser pointer with key lock.This type of laser technology as foreign, such as the United States
Coherent, Spectra Physics, Germany antics take, possession the Belarus Solar and other large companies, so can be considered: the level of development of high peak power laser frequency conversion
technology, is directly related or restrict the level of domestic development of laser technology, and influence the development of laser applications in industry, in national economic development
is of strategic significance. Because the laser pulse peak power and pulse energy is proportional to and inversely proportional to the pulse width, so in order to get a higher peak power, or to
achieve higher energy output, or shorten the pulse width. Insight into this type of laser technology features and to achieve a further breakthrough of great significance. The wavelength of the
laser light of green laser pointer contains 405nm and 445nm which emit blue violet laser beam.
Energy of the high beam quality laser the VRMs non-unstable resonator cavity design to achieve high energy beam quality laser output, conventional stable cavity design is obviously far from being
able to meet the requirements. At this point, the laser crystal rods the size was relatively large, the cavity design of the traditional stability, it is difficult to achieve the fundamental mode
radius is larger than 1mm of stable output; traditional unstable resonator, can increase the volume of the fundamental mode , and yet there are hard-edge diffraction and near-field ripple [4], with
variable reflectivity output mirror (VRM) [5], combined with the repetition rate requirements, the choice of appropriate magnification can generally achieve high beam quality laser output . VRM
unstable resonator optical path shown in Figure 1. The wavelength of green laser pointer contains 589nm which emits yellow laser beam.This kind of 5 in 1 green laser pointer equips with 5 different
caps
Friday, December 21, 2012
The parameters reflecting the size of the laser DC bias current
The optical transmitter within the microprocessor system is an important part of the optical transmitter, its function is not only to fully display the state parameters of the optical transmitter.vSampled values displayed by the operating temperature is taken from the ATC circuit, it reflects the actual temperature of the laser tube core, the normal value of the parameter should be at about 25 ℃, of course, there will be a change in the scope, but this range is smaller and more good range ATC control accuracy, I also see that some manufacturers of optical transmitter 23 ° C, 22 ° C, I do not know why; from the characteristics of the optical transmitter laser is 25 ℃ temperature environment. The laser bias current. The parameters reflecting the size of the laser DC bias current, the sampled values from the APC circuit, the laser output power, DC bias current.
The optical transmitter is a high-end professional equipment, its installation and commissioning must be operated by professional and technical personnel, and read carefully before random attachment instructions to avoid damage to equipment due to misuse or accidents caused injury to the operator, and its specific debugging steps are as follows. The transmitter into the front-end cabinet and fixed, reliable chassis grounding equipment before the power, you should confirm the chassis and the power outlet is connected to ground (ground resistance should be less than 4Ω), to prevent electrostatic damage to the laser device, and prevent chassis charged and cause harm to humans. In order to ensure that the equipment long-term stability in the poor areas of the grid voltage instability or voltage waveforms, it is recommended that users with a dedicated AC power supply. green laser pointer has the laser indicator.
In the region of ambient temperature change is too big or the room environment is poor (the ideal working environment is 25 ° C), necessary for the device is equipped with a dedicated air-conditioning equipment to improve the working environment of the device. Turn the machine off, adjust the front panel Status button to view the equipment operating parameters confirm that the device has entered the normal working condition. The optical signal output optical power meter is connected to the optical transmitter with a standard fiber test jumper, measuring equipment output optical power, and confirm the value of the output optical power and front panel display, and has reached the standard value; in the measurement The optical power should recognize the power meter at the 1310nm wavelength measurement file, to confirm the standard test jumper fiber test jumper for the match. Will be cleaning the fiber optic connector access power meter, measure the output optical power, and to confirm that the optical fiber connector has been cleaned. The audio modulation of green laser pointer is digital.
The optical transmitter is a high-end professional equipment, its installation and commissioning must be operated by professional and technical personnel, and read carefully before random attachment instructions to avoid damage to equipment due to misuse or accidents caused injury to the operator, and its specific debugging steps are as follows. The transmitter into the front-end cabinet and fixed, reliable chassis grounding equipment before the power, you should confirm the chassis and the power outlet is connected to ground (ground resistance should be less than 4Ω), to prevent electrostatic damage to the laser device, and prevent chassis charged and cause harm to humans. In order to ensure that the equipment long-term stability in the poor areas of the grid voltage instability or voltage waveforms, it is recommended that users with a dedicated AC power supply. green laser pointer has the laser indicator.
In the region of ambient temperature change is too big or the room environment is poor (the ideal working environment is 25 ° C), necessary for the device is equipped with a dedicated air-conditioning equipment to improve the working environment of the device. Turn the machine off, adjust the front panel Status button to view the equipment operating parameters confirm that the device has entered the normal working condition. The optical signal output optical power meter is connected to the optical transmitter with a standard fiber test jumper, measuring equipment output optical power, and confirm the value of the output optical power and front panel display, and has reached the standard value; in the measurement The optical power should recognize the power meter at the 1310nm wavelength measurement file, to confirm the standard test jumper fiber test jumper for the match. Will be cleaning the fiber optic connector access power meter, measure the output optical power, and to confirm that the optical fiber connector has been cleaned. The audio modulation of green laser pointer is digital.
Thursday, December 20, 2012
As long as there are no metal shielding obstacles between the emitter
As long as there are
no metal shielding obstacles between the emitter and receiver of RF green laser pointer with remote control.
Electron can absorb or release energy from one to the step is moved to another level. For example, when the electronic absorption of a photon [2], it can be from a lower step moved to a higher
energy level (Figure 2). Similarly, one located in the high-energy bands e will transition to a lower energy level (Figure b) by emitting a photon. In these processes, the electronic absorption or
release of the photon energy is always the energy difference between these two bands are equal. Photon energy determines the wavelength of light, therefore, the absorption or release of light with
a fixed color. RF green laser pointer with remote control usually has higher costs.
Figure diatomic electronic transition process. When the atoms within the electron is at the lowest possible energy level, the lowest energy of the atoms, we call the atom in the ground state.
Figure 1 shows the carbon atoms in the arrangement of the electronic ground state situation. When one or more electrons at a higher level, we call the atoms in the excited state. I said before, the
electrons through absorption or release of transitions between energy levels. Transition can be divided into three forms: spontaneous absorption - Electronics by absorbing photons from the low-
energy step to move to high-energy bands (Figure 2 a). Spontaneous emission - Electronic spontaneously through the release of photons from the high-energy step to move to a lower energy level
(Figure 2b). But RF green laser pointer with remote control has no directivity.
By stimulated emission of radiation - photons launched into substance-induced electrons from the high-energy step to move to low-energy bands, and the release of the photon. Incident photon and the
release of photons have the same wavelength and phase, this wavelength corresponds to the energy difference between two energy levels. A photon-induced atomic emission of a photon, and finally
becomes two identical photons (Figure 2c). The schematic of the ruby laser. The laser is basically generated by the third transition mechanism. Figure III shows the principle of the ruby laser. It
consists of a flash, the laser medium and two mirrors.
no metal shielding obstacles between the emitter and receiver of RF green laser pointer with remote control.
Electron can absorb or release energy from one to the step is moved to another level. For example, when the electronic absorption of a photon [2], it can be from a lower step moved to a higher
energy level (Figure 2). Similarly, one located in the high-energy bands e will transition to a lower energy level (Figure b) by emitting a photon. In these processes, the electronic absorption or
release of the photon energy is always the energy difference between these two bands are equal. Photon energy determines the wavelength of light, therefore, the absorption or release of light with
a fixed color. RF green laser pointer with remote control usually has higher costs.
Figure diatomic electronic transition process. When the atoms within the electron is at the lowest possible energy level, the lowest energy of the atoms, we call the atom in the ground state.
Figure 1 shows the carbon atoms in the arrangement of the electronic ground state situation. When one or more electrons at a higher level, we call the atoms in the excited state. I said before, the
electrons through absorption or release of transitions between energy levels. Transition can be divided into three forms: spontaneous absorption - Electronics by absorbing photons from the low-
energy step to move to high-energy bands (Figure 2 a). Spontaneous emission - Electronic spontaneously through the release of photons from the high-energy step to move to a lower energy level
(Figure 2b). But RF green laser pointer with remote control has no directivity.
By stimulated emission of radiation - photons launched into substance-induced electrons from the high-energy step to move to low-energy bands, and the release of the photon. Incident photon and the
release of photons have the same wavelength and phase, this wavelength corresponds to the energy difference between two energy levels. A photon-induced atomic emission of a photon, and finally
becomes two identical photons (Figure 2c). The schematic of the ruby laser. The laser is basically generated by the third transition mechanism. Figure III shows the principle of the ruby laser. It
consists of a flash, the laser medium and two mirrors.
Wednesday, December 19, 2012
Technical specifications of green laser pointer is in the following
Technical specifications of green laser pointer is in the following.
Widely used for laser ranging technology and continuous improvement, greatly improve the ranging accuracy of the rangefinder, to improve the progress in the shooting of a variety of weapons, to protect a variety of launch platforms. Since the army of military laser rangefinder equipment, after years of research and equipment practice, the current technology has Staff has gone through two generations, is entering the third generation. The third generation of military laser rangefinder is a solid eye-safe laser range finder and gas co2 laser rangefinder. Such as the United States, "Smil" eye-safe laser rangefinder. Co2 laser rangefinder launch 10.6um wavelength of the eye-safe laser. Working temperature of green laser pointer is 10~30 Celsius degree.The customer uses green laser pointer under the better condition in the appropriate method
The main advantages are: good transmission performance in the smoke; and 8-12um thermal imager at the same wavelength, and therefore compatibility; enemy detection difficult. Equipped with suitable thermal imager. Currently, tanks and small laser rangefinder increased by pulsed TEA laser pulse compression technology, and sound and light control and linear modulation frequency, while the receivers using heterodyne detection, will greatly enhance the detection sensitivity. In many tactical applications, remote laser range finder can measure more than 20km. Several laser rangefinder comparative study showed that: high detection sensitivity of heterodyne detection of laser range finder than direct detection laser rangefinder to measure distance away, such as France, THC198 type heterodyne detection pulse co2 laser rangefinder ranging to 10km. green laser pointer will provide the comfortable grip for the customer.
With the continuous development of new material and technology, the ultra-large-scale electronic computer and software development in the increasingly intense electronic warfare modern warfare, the advantages of pulsed laser ranging technology will be especially prominent. The laser range finder, the key technology is to increase the maximum measurable distance. The maximum measurable distance is an important parameter for the characterization of laser rangefinder overall performance. Remote laser rangefinder still in the exploratory research stage, from the practical stage of the far distance. There are three current development of eye-safe laser rangefinder: co2 laser rangefinder launch 10.6um wavelength of the eye-safe laser. The main advantage: the transmission performance of the smoke; like the 8-12um heat.
Widely used for laser ranging technology and continuous improvement, greatly improve the ranging accuracy of the rangefinder, to improve the progress in the shooting of a variety of weapons, to protect a variety of launch platforms. Since the army of military laser rangefinder equipment, after years of research and equipment practice, the current technology has Staff has gone through two generations, is entering the third generation. The third generation of military laser rangefinder is a solid eye-safe laser range finder and gas co2 laser rangefinder. Such as the United States, "Smil" eye-safe laser rangefinder. Co2 laser rangefinder launch 10.6um wavelength of the eye-safe laser. Working temperature of green laser pointer is 10~30 Celsius degree.The customer uses green laser pointer under the better condition in the appropriate method
The main advantages are: good transmission performance in the smoke; and 8-12um thermal imager at the same wavelength, and therefore compatibility; enemy detection difficult. Equipped with suitable thermal imager. Currently, tanks and small laser rangefinder increased by pulsed TEA laser pulse compression technology, and sound and light control and linear modulation frequency, while the receivers using heterodyne detection, will greatly enhance the detection sensitivity. In many tactical applications, remote laser range finder can measure more than 20km. Several laser rangefinder comparative study showed that: high detection sensitivity of heterodyne detection of laser range finder than direct detection laser rangefinder to measure distance away, such as France, THC198 type heterodyne detection pulse co2 laser rangefinder ranging to 10km. green laser pointer will provide the comfortable grip for the customer.
With the continuous development of new material and technology, the ultra-large-scale electronic computer and software development in the increasingly intense electronic warfare modern warfare, the advantages of pulsed laser ranging technology will be especially prominent. The laser range finder, the key technology is to increase the maximum measurable distance. The maximum measurable distance is an important parameter for the characterization of laser rangefinder overall performance. Remote laser rangefinder still in the exploratory research stage, from the practical stage of the far distance. There are three current development of eye-safe laser rangefinder: co2 laser rangefinder launch 10.6um wavelength of the eye-safe laser. The main advantage: the transmission performance of the smoke; like the 8-12um heat.
Monday, December 17, 2012
There are several ways to determine the power of green laser pointer
There are several ways to determine the power of green laser pointer .
Together a PC computer to the analyzer unit, run software installation is required. Optical window, stainless steel flange and purge establish a process gas analyzer interface. In order to prevent dust and other pollutants in the window on the aggregation of required dry and free from oil compressed air, gas (usually nitrogen) or fan continuous purge. Analyzer adjusted by adjusting the transmitter and the receiver flange. Prevent process gas leakage in the installation and maintenance of valve (recommended ball valve) can be installed between the process gas and the flange, these valves also protect the window. The rugged industrial design and continuous purging, making the laser gas site online analyzer maintenance is very easy to maintain the workload is quite small (almost close to maintenance-free). Buy green laser pointer which has the real power.
No moving parts in the instrument, so preventive maintenance is limited to just visual inspection and cleaning of optical window. Experience has shown that the maintenance cycle is usually more than three months, and simple to just clean the optical window. For outside the recommended maintenance intervals due to the critical parameters have been an internal sense, maintenance, equipment will be given to remind. The laser gas site online analytical instrument factory calibrated for the first time using the calibration without the need re-calibration at least six months or a few years later. The advanced technology used by the analyzer, calibration is very easy. Through the built-in "to the receiving unit, the fluid through the unit and blown into the calibration gas calibration can be site-line calibration without removing the transmitter and receiver unit. And for 50mW green laser pointer , the laser beam will be a little bit dazzling.
Calibration via a PC, the calibration process is very easy - service software running on your PC to complete all of the computing tasks. Can also be used offline calibration of the calibration tube. Input and output signals. Laser gas field analyzer offers three major gas content of the output signal as a standard signal. The online site of the laser gas analyzer contains a transmitter, receiver and electronic unit. Installation, maintenance and calibration via RS 232 and PC computer communications, but also through the MODEM and the PC remote communication. Analyzer service software specially designed to be used to complete all necessary tasks such as setting the output range, the gas temperature and pressure, optical channel length. It is to judge and determine the power of green laser pointer .
Together a PC computer to the analyzer unit, run software installation is required. Optical window, stainless steel flange and purge establish a process gas analyzer interface. In order to prevent dust and other pollutants in the window on the aggregation of required dry and free from oil compressed air, gas (usually nitrogen) or fan continuous purge. Analyzer adjusted by adjusting the transmitter and the receiver flange. Prevent process gas leakage in the installation and maintenance of valve (recommended ball valve) can be installed between the process gas and the flange, these valves also protect the window. The rugged industrial design and continuous purging, making the laser gas site online analyzer maintenance is very easy to maintain the workload is quite small (almost close to maintenance-free). Buy green laser pointer which has the real power.
No moving parts in the instrument, so preventive maintenance is limited to just visual inspection and cleaning of optical window. Experience has shown that the maintenance cycle is usually more than three months, and simple to just clean the optical window. For outside the recommended maintenance intervals due to the critical parameters have been an internal sense, maintenance, equipment will be given to remind. The laser gas site online analytical instrument factory calibrated for the first time using the calibration without the need re-calibration at least six months or a few years later. The advanced technology used by the analyzer, calibration is very easy. Through the built-in "to the receiving unit, the fluid through the unit and blown into the calibration gas calibration can be site-line calibration without removing the transmitter and receiver unit. And for 50mW green laser pointer , the laser beam will be a little bit dazzling.
Calibration via a PC, the calibration process is very easy - service software running on your PC to complete all of the computing tasks. Can also be used offline calibration of the calibration tube. Input and output signals. Laser gas field analyzer offers three major gas content of the output signal as a standard signal. The online site of the laser gas analyzer contains a transmitter, receiver and electronic unit. Installation, maintenance and calibration via RS 232 and PC computer communications, but also through the MODEM and the PC remote communication. Analyzer service software specially designed to be used to complete all necessary tasks such as setting the output range, the gas temperature and pressure, optical channel length. It is to judge and determine the power of green laser pointer .
Saturday, December 15, 2012
This advantage of green laser pointer can attract more and more customer
It is to buy green laser pointer.
Conduction mechanism, the power semiconductor switching devices summed up in bipolar devices, unipolar devices and hybrid devices can be divided into three categories. Control mode, due to the particularity of the power system, the power of the 1990s also commonly used analog control mode. The analog control is simple, efficient, cost is also low, a high-performance analog control integrated chip only a dozen yuan. However, with the rise of digital hurricane within the electronics industry, deficiencies and shortcomings of the analog control is gradually emerging, the power industry are beginning to use digital control method. At present, 51 single-chip digital control most of the common, high-grade some high-speed DSP. The digital micro-controller is generally integrated AD sampling and PWM output can be easily with legacy systems constitute a closed-loop feedback. This advantage of green laser pointer can attract more and more customer.
The same time, the semiconductor industry in some far-sighted and even specialized introduction of digital control for power control chip, its integrated within the more peripheral, not only contains the AD and PWM also includes commonly used control algorithms such as PID algorithm and over stream over-voltage protection function. In the field of laser power, the company has a leading position in the stars company of Guilin, Shenzhen Han's Laser, foreign leading IPG companies such as Germany, the United States CEO Company. Power products in more than produced in the step-by-step by the analog control to digital control. Production of CNC power of these companies, to maintain the original analog power performance on the basis of the substantial increase in human-computer interaction with the host computer connectivity. More and more customer would like to choose the green green laser pointer as the useful and practical tool and assistant.
This article by DSP digital control switching power supply analysis and research, the development of a krypton lamp-pumped laser-powered CNC laser power. Advanced laser power control mode, the performance is excellent. Laser by the composition of the work material, the pump source, the condenser chamber, optical resonator, the laser power supply, etc.. Krypton lamp is a lamp-pumped solid state laser light source. Selection of the development of continuous solid-state laser material YAG, laser stimulated radiating large, and thus its threshold is lower, suitable for continuous and high repetition rate.
Conduction mechanism, the power semiconductor switching devices summed up in bipolar devices, unipolar devices and hybrid devices can be divided into three categories. Control mode, due to the particularity of the power system, the power of the 1990s also commonly used analog control mode. The analog control is simple, efficient, cost is also low, a high-performance analog control integrated chip only a dozen yuan. However, with the rise of digital hurricane within the electronics industry, deficiencies and shortcomings of the analog control is gradually emerging, the power industry are beginning to use digital control method. At present, 51 single-chip digital control most of the common, high-grade some high-speed DSP. The digital micro-controller is generally integrated AD sampling and PWM output can be easily with legacy systems constitute a closed-loop feedback. This advantage of green laser pointer can attract more and more customer.
The same time, the semiconductor industry in some far-sighted and even specialized introduction of digital control for power control chip, its integrated within the more peripheral, not only contains the AD and PWM also includes commonly used control algorithms such as PID algorithm and over stream over-voltage protection function. In the field of laser power, the company has a leading position in the stars company of Guilin, Shenzhen Han's Laser, foreign leading IPG companies such as Germany, the United States CEO Company. Power products in more than produced in the step-by-step by the analog control to digital control. Production of CNC power of these companies, to maintain the original analog power performance on the basis of the substantial increase in human-computer interaction with the host computer connectivity. More and more customer would like to choose the green green laser pointer as the useful and practical tool and assistant.
This article by DSP digital control switching power supply analysis and research, the development of a krypton lamp-pumped laser-powered CNC laser power. Advanced laser power control mode, the performance is excellent. Laser by the composition of the work material, the pump source, the condenser chamber, optical resonator, the laser power supply, etc.. Krypton lamp is a lamp-pumped solid state laser light source. Selection of the development of continuous solid-state laser material YAG, laser stimulated radiating large, and thus its threshold is lower, suitable for continuous and high repetition rate.
Friday, December 14, 2012
The commission process of green laser pointer is complicated
The commission process of green laser pointer is complicated
The laser power density required to select the characteristics of the material itself and welding technology requirements. Under normal circumstances, the thin plate (plate thickness is 0.01-0.10mm) welding, the laser power density range for the Fm of <F <Fc, in the slab (thickness greater than 0.50mm) welding, the laser power density range Fm of < F <Fv6. The same time, the size of the laser power density has a considerable impact on the penetration and welding speed. Figure 2 - 2 laser thermal conductivity welding stainless steel, power and welding speed, the diagram of the melting depth of 2-2 1, 2 and 3, respectively, for 1.0,3.0,10.0 mm / s welding speed of melting depth curves. 7 can be seen in the laser power, welding speed, the heat input is decreased, reduce weld penetration.It can be seen that the laser pulse Start role of high reflectivity is quite high; when the surface temperature rose to the melting point, the reflectivity of the rapid decline; surface in a molten state, the reflection rate stable at a value; when the surface temperature continues to rise to the boiling point reflectance, and again declined. green laser pointer can be used for the star gazing. Defocus amount on the quality of welding laser welding usually requires a certain degree of defocus amount, because of the high power density of the laser focus at the spot center, easily evaporate into the hole.
This paper discusses the progress of the ultra high strength steel (UHS) plate welding process, welding solid-state lasers for optical fiber transmission, to determine the weld strong warm formability. Using three different solid-state lasers of the optical fiber transmission thickness of 0.8 to 15mm, the tensile strength of 600 to 1 550 MPa the same material and different material combinations dual phase steels (DP), transformation induced plasticity steel (OF TRIP), Usibor steel and boron steel spontaneous, carbon dioxide laser welding test, lap duplex to get penetration butt welds. The fusion zone and heat affected zone, hardening and softening behavior, and also analyzed the impact of the laser process parameters on the welding speed, weld morphology and joint performance. The laser equipment used in this paper, laser welding test using three different optical fiber transmission solid-state lasers: 4kW continuous-wave Nd: YAG laser, the Yb fiber laser 5kW and 7kW Yb fiber laser. Among them, the use of Nd: YAG laser for TrumpfHL4006D 4kW lamp-pumped lasers, laser diameter ψ0.6. However, the maximum welding speed, increasing the laser power using a smaller laser spot is more effective. Figure 8 shows a typical cross-section of the lap weld the different steel plate weld cross section of a combination of different materials is given in Figure 9.
The laser power density required to select the characteristics of the material itself and welding technology requirements. Under normal circumstances, the thin plate (plate thickness is 0.01-0.10mm) welding, the laser power density range for the Fm of <F <Fc, in the slab (thickness greater than 0.50mm) welding, the laser power density range Fm of < F <Fv6. The same time, the size of the laser power density has a considerable impact on the penetration and welding speed. Figure 2 - 2 laser thermal conductivity welding stainless steel, power and welding speed, the diagram of the melting depth of 2-2 1, 2 and 3, respectively, for 1.0,3.0,10.0 mm / s welding speed of melting depth curves. 7 can be seen in the laser power, welding speed, the heat input is decreased, reduce weld penetration.It can be seen that the laser pulse Start role of high reflectivity is quite high; when the surface temperature rose to the melting point, the reflectivity of the rapid decline; surface in a molten state, the reflection rate stable at a value; when the surface temperature continues to rise to the boiling point reflectance, and again declined. green laser pointer can be used for the star gazing. Defocus amount on the quality of welding laser welding usually requires a certain degree of defocus amount, because of the high power density of the laser focus at the spot center, easily evaporate into the hole.
This paper discusses the progress of the ultra high strength steel (UHS) plate welding process, welding solid-state lasers for optical fiber transmission, to determine the weld strong warm formability. Using three different solid-state lasers of the optical fiber transmission thickness of 0.8 to 15mm, the tensile strength of 600 to 1 550 MPa the same material and different material combinations dual phase steels (DP), transformation induced plasticity steel (OF TRIP), Usibor steel and boron steel spontaneous, carbon dioxide laser welding test, lap duplex to get penetration butt welds. The fusion zone and heat affected zone, hardening and softening behavior, and also analyzed the impact of the laser process parameters on the welding speed, weld morphology and joint performance. The laser equipment used in this paper, laser welding test using three different optical fiber transmission solid-state lasers: 4kW continuous-wave Nd: YAG laser, the Yb fiber laser 5kW and 7kW Yb fiber laser. Among them, the use of Nd: YAG laser for TrumpfHL4006D 4kW lamp-pumped lasers, laser diameter ψ0.6. However, the maximum welding speed, increasing the laser power using a smaller laser spot is more effective. Figure 8 shows a typical cross-section of the lap weld the different steel plate weld cross section of a combination of different materials is given in Figure 9.
Wednesday, December 12, 2012
green laser pointer needs more time for preheating
green laser pointer needs more time for preheating especially in the winter
Some of the austenitic stainless steel welded joints welded joints to intergranular corrosion, localized corrosion along the grain boundaries may work for some time in the corrosive medium,
generally referred to such corrosion is intergranular corrosion, 0Cr18Ni9 stainless steel to intergranular corrosion as shown in Figure 3 shows. According to the type of parent material and the use
of welding materials and welding, the welded joints of austenitic stainless steel is likely to occur in the weld zone, HAZ sensitized to (600 to 1000 ° C) and fusion zone. An intergranular
corrosion (1) intergranular corrosion because 0Cr18Ni9 stainless steel to intergranular corrosion. Austenitic stainless steel weld and HAZ sensitization to intergranular corrosion, grain boundary
related to the formation of chromium depleted layer and the process of sensitization. The final inspection of green laser pointer is listed in the manual.
Weld to produce intergranular corrosion can have two situations: one is already welded Cr23C6 precipitation, such as multi-layer welds repeated heating region; another joint welded chromium
depletion layer, but after welding sensitization temperature range, and thus has a tendency to intergranular corrosion. 16 Harbin Institute of Technology austenitic stainless steel is heated to 450
~ 850 ℃, the intergranular corrosion of the most sensitive to this temperature range, said sensitizing temperature zone. This is because when the temperature is below 450 ° C, the carbon atomic
activity is weak and does not Cr23C6 precipitation difficult the formation of chromium depleted layer; kinetic energy when the temperature higher than 850 ° C, obtained inside the grains of
chrome, extended to the crystal sector, so that the formation of chromium depletion layer disappears. The good quality laser chip of green laser pointer has the long life time.
In the temperature range of 450 ~ 850 ℃, both beneficial Cr23C6 precipitation inside the grains of chromium atoms can not diffuse to grain boundaries, most likely to form a chromium depletion
layer, the most sensitive to intergranular corrosion. Of course, if heated 450 ~ 850 ℃ temperature range long enough period of time, the intragranular chromium atoms can diffuse to the grain
boundary chromium depletion layer disappears. (2) to prevent the welded joint measures to intergranular corrosion process measures to select the appropriate welding method, choose the minimum heat
input welding method, the welded joints as much as possible to shorten the time to stay in the sensitization temperature range. Welded joints for thin, small rules, you should use the energy of the
focused laser welding. Forced rapid cooling of the weld zone.
Some of the austenitic stainless steel welded joints welded joints to intergranular corrosion, localized corrosion along the grain boundaries may work for some time in the corrosive medium,
generally referred to such corrosion is intergranular corrosion, 0Cr18Ni9 stainless steel to intergranular corrosion as shown in Figure 3 shows. According to the type of parent material and the use
of welding materials and welding, the welded joints of austenitic stainless steel is likely to occur in the weld zone, HAZ sensitized to (600 to 1000 ° C) and fusion zone. An intergranular
corrosion (1) intergranular corrosion because 0Cr18Ni9 stainless steel to intergranular corrosion. Austenitic stainless steel weld and HAZ sensitization to intergranular corrosion, grain boundary
related to the formation of chromium depleted layer and the process of sensitization. The final inspection of green laser pointer is listed in the manual.
Weld to produce intergranular corrosion can have two situations: one is already welded Cr23C6 precipitation, such as multi-layer welds repeated heating region; another joint welded chromium
depletion layer, but after welding sensitization temperature range, and thus has a tendency to intergranular corrosion. 16 Harbin Institute of Technology austenitic stainless steel is heated to 450
~ 850 ℃, the intergranular corrosion of the most sensitive to this temperature range, said sensitizing temperature zone. This is because when the temperature is below 450 ° C, the carbon atomic
activity is weak and does not Cr23C6 precipitation difficult the formation of chromium depleted layer; kinetic energy when the temperature higher than 850 ° C, obtained inside the grains of
chrome, extended to the crystal sector, so that the formation of chromium depletion layer disappears. The good quality laser chip of green laser pointer has the long life time.
In the temperature range of 450 ~ 850 ℃, both beneficial Cr23C6 precipitation inside the grains of chromium atoms can not diffuse to grain boundaries, most likely to form a chromium depletion
layer, the most sensitive to intergranular corrosion. Of course, if heated 450 ~ 850 ℃ temperature range long enough period of time, the intragranular chromium atoms can diffuse to the grain
boundary chromium depletion layer disappears. (2) to prevent the welded joint measures to intergranular corrosion process measures to select the appropriate welding method, choose the minimum heat
input welding method, the welded joints as much as possible to shorten the time to stay in the sensitization temperature range. Welded joints for thin, small rules, you should use the energy of the
focused laser welding. Forced rapid cooling of the weld zone.
Tuesday, December 11, 2012
This kind of green laser pointer belongs to the IIIB safety level
This kind of green laser pointer belongs to the IIIB safety level.
P137 open door req in the print system, the user can not open the front door. Please wait until the display of information on behalf of the film magazine is off the S25 '. P138 press open 5s cassette is not closed, or did not return the cassette elevator in situ, resulting in the front door can not be opened. Hold the Local Panel 'Open Door' button for 5 seconds, the elimination of film blocking or other error status, the user can manually turn off the film box. This occurs, the chip box at the top of a few film will be exposed. * Must display the information alternately. P139 bad barcode system can not read the film box at the bottom of the bar code. The other film of the trial (box). The safety of using green laser pointer comes first.In the museum or gallery, green laser pointer is not appropriate.
Right-click the image file name, select Srereo PIV self Calibration wizard, three-dimensional self-calibration of the system. Then the images of two cameras in each group of photos of the system will placed side by side, by adjusting the slider, you can switch between each group of photos. Select the most similar to the two pictures, click on the 15 coordinates of the upper side of the interface, respectively, in two similar top structure point, select the point excellent cloth, the more likely to improve the accuracy (typically less than 5) . To the next step, select the calculation new calibration correction calculation. The calculation results will be displayed in the right side of the interface to view the error size, click to accept the new calibration, if the error is less than 5pixel can receive.
To prevent the above-mentioned items reflection, refraction, lasers, cameras and laboratory personnel injury. Refraction of the laser, the damage to the camera and laboratory personnel. Other operations subsequent processing of the experimental data, not the computer processing capacity, to give at this time. Other operations subsequent processing of the experimental data, not the computer processing capacity, the other tasks of the computer may cause crashes or software normally automatically shut down, this is a normal phenomenon. Other computer tasks, and may cause crashes or software normally automatically shut down, this is a normal phenomenon. The laser energy should be weak to strong, and every time you move the mouse to the income picture will appear in the bottom right corner.
P137 open door req in the print system, the user can not open the front door. Please wait until the display of information on behalf of the film magazine is off the S25 '. P138 press open 5s cassette is not closed, or did not return the cassette elevator in situ, resulting in the front door can not be opened. Hold the Local Panel 'Open Door' button for 5 seconds, the elimination of film blocking or other error status, the user can manually turn off the film box. This occurs, the chip box at the top of a few film will be exposed. * Must display the information alternately. P139 bad barcode system can not read the film box at the bottom of the bar code. The other film of the trial (box). The safety of using green laser pointer comes first.In the museum or gallery, green laser pointer is not appropriate.
Right-click the image file name, select Srereo PIV self Calibration wizard, three-dimensional self-calibration of the system. Then the images of two cameras in each group of photos of the system will placed side by side, by adjusting the slider, you can switch between each group of photos. Select the most similar to the two pictures, click on the 15 coordinates of the upper side of the interface, respectively, in two similar top structure point, select the point excellent cloth, the more likely to improve the accuracy (typically less than 5) . To the next step, select the calculation new calibration correction calculation. The calculation results will be displayed in the right side of the interface to view the error size, click to accept the new calibration, if the error is less than 5pixel can receive.
To prevent the above-mentioned items reflection, refraction, lasers, cameras and laboratory personnel injury. Refraction of the laser, the damage to the camera and laboratory personnel. Other operations subsequent processing of the experimental data, not the computer processing capacity, to give at this time. Other operations subsequent processing of the experimental data, not the computer processing capacity, the other tasks of the computer may cause crashes or software normally automatically shut down, this is a normal phenomenon. Other computer tasks, and may cause crashes or software normally automatically shut down, this is a normal phenomenon. The laser energy should be weak to strong, and every time you move the mouse to the income picture will appear in the bottom right corner.
Monday, December 10, 2012
Whether the use of green laser pointer will affect others or not
green laser pointer should be used in the suitable occasion in the appropriate way.
As the relationship between the round trip time and distance between two points. Where, N is the phase difference Φ contains an integer multiple of 2π, ΔN is less than the whole wave number of the mantissa, the wavelength of λ of the modulated wave. L = 1 / 2λ known as the measuring tape length. In practical applications, due to unable to determine the value of N is taken to increase the modulation wavelength λ, measuring tape length L is greater than 2 times the measured distance d. The selected measurement range in this system is 100 m, ie the modulation wave length of 200 m, the modulation frequency is 1.5MHz. This system is using the ADSP-BF533 development platform designed high-precision laser ranging system. The whole system by a the BF533 minimum system development board, laser unit, the laser receiver unit, showing the composition of the unit, alarm unit and brake unit. Whether the use of green laser pointer will affect others or not.
Its block diagram shown in Figure 1. The laser unit including the generation of the direct signal modulation wave signal frequency synthesizer (DDS) and the laser driver circuit. The system selected DDS is a four-channel high-speed direct signal frequency synthesizer AD9959 AD company. Processor through the SPI interface to DDS write control word to produce two similar frequency sinusoidal signal, respectively, as the local oscillator signal and the LO signal. LCD unit with TFT-LCD liquid crystal display. DSP processor through the PPI port drive on the TFT screen and real-time display of images and distance; alarm unit uses TI's TLV320AIC23B Audio Codec chip connection BF533 processor SPORT port, the audio alarm. The cost of parts and components of green laser pointer is higher.The finished product of green laser pointer should be passed through
The laser receiver unit avalanche diode received light signals into electrical signals, after mixer AD831 mixer processing, the use of the AD converter is converted into digital signals through the SPI port to enter the microprocessor. Microprocessor using FFT algorithm to calculate the phase difference, according to the algorithm were taken to the police or the brake handle. The software part of the system using C language, the signal simulation using MATLAB, the ultimate in Visual DSP + + environment, compiled. The software flow diagram shown in Figure 2. The first system power-up initialization, including setting the stack pointer, initialize the LCD, DDS, clock, etc.. green laser pointer can irradiate to a long distance.
As the relationship between the round trip time and distance between two points. Where, N is the phase difference Φ contains an integer multiple of 2π, ΔN is less than the whole wave number of the mantissa, the wavelength of λ of the modulated wave. L = 1 / 2λ known as the measuring tape length. In practical applications, due to unable to determine the value of N is taken to increase the modulation wavelength λ, measuring tape length L is greater than 2 times the measured distance d. The selected measurement range in this system is 100 m, ie the modulation wave length of 200 m, the modulation frequency is 1.5MHz. This system is using the ADSP-BF533 development platform designed high-precision laser ranging system. The whole system by a the BF533 minimum system development board, laser unit, the laser receiver unit, showing the composition of the unit, alarm unit and brake unit. Whether the use of green laser pointer will affect others or not.
Its block diagram shown in Figure 1. The laser unit including the generation of the direct signal modulation wave signal frequency synthesizer (DDS) and the laser driver circuit. The system selected DDS is a four-channel high-speed direct signal frequency synthesizer AD9959 AD company. Processor through the SPI interface to DDS write control word to produce two similar frequency sinusoidal signal, respectively, as the local oscillator signal and the LO signal. LCD unit with TFT-LCD liquid crystal display. DSP processor through the PPI port drive on the TFT screen and real-time display of images and distance; alarm unit uses TI's TLV320AIC23B Audio Codec chip connection BF533 processor SPORT port, the audio alarm. The cost of parts and components of green laser pointer is higher.The finished product of green laser pointer should be passed through
The laser receiver unit avalanche diode received light signals into electrical signals, after mixer AD831 mixer processing, the use of the AD converter is converted into digital signals through the SPI port to enter the microprocessor. Microprocessor using FFT algorithm to calculate the phase difference, according to the algorithm were taken to the police or the brake handle. The software part of the system using C language, the signal simulation using MATLAB, the ultimate in Visual DSP + + environment, compiled. The software flow diagram shown in Figure 2. The first system power-up initialization, including setting the stack pointer, initialize the LCD, DDS, clock, etc.. green laser pointer can irradiate to a long distance.
Sunday, December 9, 2012
The will try their best to solve the problem put forward
The will try their best to solve the problem put forward by the customer in the design liaison meeting of green laser pointer .
Precision micro-laser is mainly used in semiconductor wafer manufacturing equipment, laser scribing, LED laser scribing, laser scribing of solar silicon, amorphous silicon thin film laser etching machine, ITO film laser etching machine, etc.; small and medium-power laser equipment products company developed fiber laser marking equipment belonging to the third generation of laser technology, with strong international competitiveness; laser is the core component of laser processing equipment, and broke through the high-power fiber laser technology as well. Laser industry is the company's traditional industries, micro-precision laser equipment manufacturing company in the photovoltaic LED and other new energy industry, please be sure to read the last page Disclaimer company research 3C electronics and high power laser equipment is automobiles, engineering machinery, etc. industry applications, in the country with a strong competitive advantage in technology. The bulk purchase can save the cost of green laser pointer .
For fiber lasers, ultra-fast ultra-short lasers, high power fast axial flow lasers and other advanced laser research and development, greatly enhance the core competitiveness, so that the laser system, full access to high-end market. With the global recovery to pick up the laser industry, we expect the company's laser industry, 3-5 years, can still maintain an average annual compound growth rate of around 20%. Figure 17:2007-2010 annual revenue of laser processing equipment, data sources: Wind, Securities Institute of Great Britain and laser holographic anti-counterfeiting RFID 3.2: stable demand, combined with RFID RFID cut into the networking industry is Zhuanban laborers image positioning / non-locating laser bronzing film, Universal Edition Laser hot stamping foil, laser anti-counterfeit packaging materials, comprehensive encryption security identification and RFID systems and products manufacturer. green laser pointer performs well in the practical use.
Following the classic semiconductor homojunction, heterojunction-based quantum wells, quantum wires and quantum dots device design, manufacture and integration of technology in the next 5 to 15 years in the materials and components manufacturing dominate molecular beam epitaxy (MBE) and metal organic chemical vapor phase epitaxy (MOCVD) technology will be further developed and more widely.
Precision micro-laser is mainly used in semiconductor wafer manufacturing equipment, laser scribing, LED laser scribing, laser scribing of solar silicon, amorphous silicon thin film laser etching machine, ITO film laser etching machine, etc.; small and medium-power laser equipment products company developed fiber laser marking equipment belonging to the third generation of laser technology, with strong international competitiveness; laser is the core component of laser processing equipment, and broke through the high-power fiber laser technology as well. Laser industry is the company's traditional industries, micro-precision laser equipment manufacturing company in the photovoltaic LED and other new energy industry, please be sure to read the last page Disclaimer company research 3C electronics and high power laser equipment is automobiles, engineering machinery, etc. industry applications, in the country with a strong competitive advantage in technology. The bulk purchase can save the cost of green laser pointer .
For fiber lasers, ultra-fast ultra-short lasers, high power fast axial flow lasers and other advanced laser research and development, greatly enhance the core competitiveness, so that the laser system, full access to high-end market. With the global recovery to pick up the laser industry, we expect the company's laser industry, 3-5 years, can still maintain an average annual compound growth rate of around 20%. Figure 17:2007-2010 annual revenue of laser processing equipment, data sources: Wind, Securities Institute of Great Britain and laser holographic anti-counterfeiting RFID 3.2: stable demand, combined with RFID RFID cut into the networking industry is Zhuanban laborers image positioning / non-locating laser bronzing film, Universal Edition Laser hot stamping foil, laser anti-counterfeit packaging materials, comprehensive encryption security identification and RFID systems and products manufacturer. green laser pointer performs well in the practical use.
Following the classic semiconductor homojunction, heterojunction-based quantum wells, quantum wires and quantum dots device design, manufacture and integration of technology in the next 5 to 15 years in the materials and components manufacturing dominate molecular beam epitaxy (MBE) and metal organic chemical vapor phase epitaxy (MOCVD) technology will be further developed and more widely.
Friday, December 7, 2012
The warehouse of green laser pointer should be ventilated
The warehouse of green laser pointer should be ventilated.
Germany IPG 3.2 solid state lasers are solid-state lasers in Nd: YAG laser has made three breakthroughs on the basis of the n argument developed: 1) the strip surface cooling plate rod-shaped proliferation of alternative cooling methods; conversion doped high absorption Yttrium Yb "YAG alternative low absorption material conversion Nd" YAG medium; laser diode (LD) pumping technology to replace lamp-pumped mode. Developed in Japan in 2005, the average output power of 10 kW electro-optical efficiency of greater than 20% of high-power solid-state lasers. German company Trumpf has LD-pumped 2,4.5 and 6 kW series YAG laser, beam quality, respectively 12, 16 and 25 Photonics company uses group-beam technology, Munich, Germany in 2005, the international exhibition of laser and photonics launch series of high-power fiber lasers, fiber laser marking industrial progress achieved milestones. The subfactory will implement the new working time of green laser pointer .
Fiber laser into the mainstream of industrial laser products and future trends [15 ˉ 19]. China Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Changchun Institute of Optics and Fine Mechanics, Tsinghua University and Nankai University and other low-power laser in a stage made of experimental results. High-power fiber lasers in China's market capacity is huge, because key components are to be imported, high-power fiber lasers in China with the international advanced level falls far short of industrial high-power fiber lasers were all imported. Laser processing robot technology and light industrial applications 2785 transport structure. Outside, red to blue-green range. Generally divided into high-power semiconductor laser array-based single-tube type and two types of monolithic two-dimensional array array and stacked arrays have two, the use of laminated array output power up to 100 W, kW, or even quasi-continuous output power of megawatts or more, while the energy conversion efficiency of these devices can be up to tens of percent. The personnel in the warehouse are very careful to count green laser pointer .
In the laser processing area, there are two main aspects of semiconductor laser application [z9, 80]: I) pumped solid-state lasers: the most commonly used pump source primarily the appearance of Figure 12 HLD-4002, there are three: 808 nm wavelength semiconductor lasers for pumped Nd: YAG solid-state laser; 940 am wavelength semiconductor lasers used for pumping Yb: YAG solid-state laser, 980 rlm semiconductor lasers used for pumping erbium-doped fiber amplifiers or erbium-doped fiber laser. 2) directly used for laser processing: 808 am high-power semiconductor lasers provide several kilowatts of output power and hundreds of quasi-continuous watts of continuous output power, reliable working life of thousands of hours.
Germany IPG 3.2 solid state lasers are solid-state lasers in Nd: YAG laser has made three breakthroughs on the basis of the n argument developed: 1) the strip surface cooling plate rod-shaped proliferation of alternative cooling methods; conversion doped high absorption Yttrium Yb "YAG alternative low absorption material conversion Nd" YAG medium; laser diode (LD) pumping technology to replace lamp-pumped mode. Developed in Japan in 2005, the average output power of 10 kW electro-optical efficiency of greater than 20% of high-power solid-state lasers. German company Trumpf has LD-pumped 2,4.5 and 6 kW series YAG laser, beam quality, respectively 12, 16 and 25 Photonics company uses group-beam technology, Munich, Germany in 2005, the international exhibition of laser and photonics launch series of high-power fiber lasers, fiber laser marking industrial progress achieved milestones. The subfactory will implement the new working time of green laser pointer .
Fiber laser into the mainstream of industrial laser products and future trends [15 ˉ 19]. China Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Changchun Institute of Optics and Fine Mechanics, Tsinghua University and Nankai University and other low-power laser in a stage made of experimental results. High-power fiber lasers in China's market capacity is huge, because key components are to be imported, high-power fiber lasers in China with the international advanced level falls far short of industrial high-power fiber lasers were all imported. Laser processing robot technology and light industrial applications 2785 transport structure. Outside, red to blue-green range. Generally divided into high-power semiconductor laser array-based single-tube type and two types of monolithic two-dimensional array array and stacked arrays have two, the use of laminated array output power up to 100 W, kW, or even quasi-continuous output power of megawatts or more, while the energy conversion efficiency of these devices can be up to tens of percent. The personnel in the warehouse are very careful to count green laser pointer .
In the laser processing area, there are two main aspects of semiconductor laser application [z9, 80]: I) pumped solid-state lasers: the most commonly used pump source primarily the appearance of Figure 12 HLD-4002, there are three: 808 nm wavelength semiconductor lasers for pumped Nd: YAG solid-state laser; 940 am wavelength semiconductor lasers used for pumping Yb: YAG solid-state laser, 980 rlm semiconductor lasers used for pumping erbium-doped fiber amplifiers or erbium-doped fiber laser. 2) directly used for laser processing: 808 am high-power semiconductor lasers provide several kilowatts of output power and hundreds of quasi-continuous watts of continuous output power, reliable working life of thousands of hours.
Thursday, December 6, 2012
The color of laser pointer has been determined
The color of laser pointer has been determined.
To support the development of the capital of the field of electronic information materials from the following four specific areas: First, the study of advanced semiconductor silicon materials technology, the second is the high-end resist the industrialization of key technologies, development and industrialization of advanced interconnect materials, four development and industrialization of advanced packaging materials. Abstract: The electronic information materials and products supporting the modern communication, computer information network technology, micromechanical intelligent systems, industrial automation and home appliances and other modern high-tech industry. The scale of development and technical level of the electronic materials industry, has become an important symbol to measure a country's economic development, technological progress and national defense strength, an important strategic position in the national economy, technological innovation and international competition is most intense areas of materials. Two pieces of laser pointer are needed for this kind of laser pointer .
Electronic information materials including semiconductor materials, optoelectronic materials, sensor materials, magnetic materials, functional ceramics, optical transmission fiber, the green battery materials. Technology to predict the field of new materials the expert group meeting to discuss development trends and characteristics of electronic information materials, the status quo of China's development and with the world's major advanced countries, the gap in research and put forward China's development priorities in the field and key technologies. Electronic information materials trends. With the electronics and optoelectronics, photonics into microelectronic materials in the next 10 to 15 years is the most basic information materials, optoelectronic materials, photonic materials will become the fastest growing and most promising information materials. laser pointer is of the mini size.
Therefore, in the laser cladding powder may be appropriate to reduce the carbon content of the powder, so can be required by the sealing surface hardness and strength, and reduces the formation of chromium carbide, relative to ensure the content of chromium. The role of convective mass transfer in the bath when the role of the laser beam can be fully stirred bath, bath gas mixture of things can go up to precipitate, forming a dense coating to ensure the melting quality. The plasma spray process is the use of plasma spray powder melting, acceleration, and then injected into the substrate material surface through the air space. This process is accompanied by air mixed with the solder layer, so often there are more pores and inclusions in the spray coating and interface parts of the distribution between the coarse dendrites, as shown in Figure 1c, d as shown.
To support the development of the capital of the field of electronic information materials from the following four specific areas: First, the study of advanced semiconductor silicon materials technology, the second is the high-end resist the industrialization of key technologies, development and industrialization of advanced interconnect materials, four development and industrialization of advanced packaging materials. Abstract: The electronic information materials and products supporting the modern communication, computer information network technology, micromechanical intelligent systems, industrial automation and home appliances and other modern high-tech industry. The scale of development and technical level of the electronic materials industry, has become an important symbol to measure a country's economic development, technological progress and national defense strength, an important strategic position in the national economy, technological innovation and international competition is most intense areas of materials. Two pieces of laser pointer are needed for this kind of laser pointer .
Electronic information materials including semiconductor materials, optoelectronic materials, sensor materials, magnetic materials, functional ceramics, optical transmission fiber, the green battery materials. Technology to predict the field of new materials the expert group meeting to discuss development trends and characteristics of electronic information materials, the status quo of China's development and with the world's major advanced countries, the gap in research and put forward China's development priorities in the field and key technologies. Electronic information materials trends. With the electronics and optoelectronics, photonics into microelectronic materials in the next 10 to 15 years is the most basic information materials, optoelectronic materials, photonic materials will become the fastest growing and most promising information materials. laser pointer is of the mini size.
Therefore, in the laser cladding powder may be appropriate to reduce the carbon content of the powder, so can be required by the sealing surface hardness and strength, and reduces the formation of chromium carbide, relative to ensure the content of chromium. The role of convective mass transfer in the bath when the role of the laser beam can be fully stirred bath, bath gas mixture of things can go up to precipitate, forming a dense coating to ensure the melting quality. The plasma spray process is the use of plasma spray powder melting, acceleration, and then injected into the substrate material surface through the air space. This process is accompanied by air mixed with the solder layer, so often there are more pores and inclusions in the spray coating and interface parts of the distribution between the coarse dendrites, as shown in Figure 1c, d as shown.
Subscribe to:
Comments (Atom)