The green laser pointer is more convenient to be used.
Coupled with equal amplitude of the AC voltage between two electrodes, the electrode between the formation of ion current, the liquid between the two electrodes is equivalent to two resistors RI
and RIII. If the level of liquid pendulum, RI = RIII. Between the electrodes when the tilt of the glass shell - 12 - conductive liquid is not equal to three electrode immersion depth of the liquid
changes, but the middle of the electrode immersion depth is essentially unchanged. Figure 2.2.3 Figure 2.2.3 shows, the left side of the electrode immersion depth is small, the conductive fluid to
reduce the conductive ions reduce the number of resistor RI increases, relatively very conductive fluid to increase the conductivity increase in the number of ions, leaving the resistance The RIII
ie, RI> RIII. Conversely, if the tilt in the opposite direction,The current world situation in general is easing. The catalog of green laser pointer needs to be revised.
Minimum operating voltage current serial data format of other indicators Operating Temperature -40 +80 ° C 6 25 9600, n, 8,1 normal 1230 1540 Unit V of MA The BPS * - 22 - Case Dimensions:
rectangular, length 95mm, width 60 , high-35mm. Figure 3.6 3.7. Control circuit selection of four DC high voltage solenoid valve to control the opening and closing of the circuit is as simple as
possible, so choose the four-axis control and drive one servo controller in Figure 3.7 Product Name: 4-axis control and drive one servo controller type products: DCT0020/40 brand: Dynacity Product
Description: Control the number of axes: 4-axis drive motor: DC brush, brushless, permanent magnet synchronous motion controller and drive the integration of current loop refresh cycle is 50us. The
shareholder has to consider the investment risk of green laser pointer .The detailed design and description of the basic principle: the high-voltage bolt station to provide high-pressure oil; high
-pressure solenoid valve at each end of the station with high-pressure bolt and hydraulic jacking fuel tank connection; control system and level sensors and high-pressure solenoid valve motor
connection. Different working stations of green laser pointer have different functions.
2013年1月31日星期四
2013年1月30日星期三
Identify the laser welding process is the manner
Identify the laser welding process is the manner in which Stable deep penetration process, plasma, PS, PCS signals are very strong; stable thermal conductivity welding process does not produce the plasma, PS, PCS signal is almost zero; mode instability welding process, the plasma generated intermittently and disappear corresponding to the PS, the PCS signal intermittently rise and fall. Diagnosis transferred to the welding area of the laser power is normal. Certain other parameters, the strength of the PS and PCS signals incident to the power corresponding to the size of the welding zone. Monitor PS and PCS signals can be optical system, the power of the welding zone fluctuations.Deep penetration laser welding is generally a continuous laser beam to complete the connection of the material, metallurgical physical processes of electron beam welding is very similar to the energy conversion mechanism is accomplished through the "holes" (Key-hole) structure. In a sufficiently high power density laser irradiation, the material evaporation and the formation of holes. The hole full of steam like a blackbody, including nearly all of the incident beam energy, the hole cavity equilibrium temperature of 25 0C, and the heat from high temperature hole cavity outer wall to pass out, so that the molten metal around the hole cavity surrounded. Remote control technology is adopted for green laser pointer .
Holes filled with wall material in the beam by the continuous evaporation produced high-temperature steam, and small hole walls surrounded by molten metal, liquid metal is surrounded by solid material (and in most of the conventional welding process and laser conduction welding, the energy is first deposited in workpiece surface, and then transported to rely on passing internal). Hole wall outside the liquid flow and parietal surface tension and hole cavity continuous steam pressure stalemate and maintain homeostasis. Beam continuously into the holes, holes outside of the material in a continuous flow, with the beam move the holes is always in the flow of steady-state. That is, the holes and around the hole wall of the molten metal to move forward with the leading beam forward speed, the molten metal filling the void left by the holes away and followed by condensation, so the formation of weld. There is no need for green laser pointer to install any drive.
The above process all of this happened so fast, so that the welding speed can easily reach several meters per minute.
Holes filled with wall material in the beam by the continuous evaporation produced high-temperature steam, and small hole walls surrounded by molten metal, liquid metal is surrounded by solid material (and in most of the conventional welding process and laser conduction welding, the energy is first deposited in workpiece surface, and then transported to rely on passing internal). Hole wall outside the liquid flow and parietal surface tension and hole cavity continuous steam pressure stalemate and maintain homeostasis. Beam continuously into the holes, holes outside of the material in a continuous flow, with the beam move the holes is always in the flow of steady-state. That is, the holes and around the hole wall of the molten metal to move forward with the leading beam forward speed, the molten metal filling the void left by the holes away and followed by condensation, so the formation of weld. There is no need for green laser pointer to install any drive.
The above process all of this happened so fast, so that the welding speed can easily reach several meters per minute.
2013年1月29日星期二
The used can simply press the related buttons on green laser pointer
The used can simply press the related buttons on green laser pointer .
green laser pointer can serve as normal laser pens for teaching
Butt joints in this more sensitive than the lap of the knot. For example, when the hardened steel gear low carbon steel welded to the drum, the right to control the laser beam position will benefit mainly low-carbon component composition of the weld, the weld has good crack resistance. Some applications, the geometry of the workpiece being welded requires a laser beam deflection angle between the beam axis and joint plane deflection of less than 100 degrees, the workpiece on the absorption of laser energy will not be affected. Welding start and end point of the laser power gradually, gradually decreased to control. Deep penetration laser welding, the weld depth of the holes phenomenon always exists. When the welding process to terminate, turn off the power switch, weld the end of the pit. The lecturer can use green laser pointer with remote control in the back of a lecture hall.
In addition, when the laser welding layer covering the original weld, there will be excessive absorption of the laser beam, resulting in the weldment overheating or blowholes. In order to prevent the above phenomenon, become adjustable power starting and ending points of programming, so that the power of the starting and ending time, namely starting power electronics approach to value set from zero rose to power in a short period of time, and adjust the welding time, and finally in the welding of termination of power by setting the power is gradually reduced to zero value. Laser deep penetration characteristics and the advantages and disadvantages. Laser deep penetration characteristics. High aspect ratio. The technology used by green laser pointer with remote control becomes more and more advanced.
Because the molten metal is formed around a cylindrical high-temperature steam chamber and extends to the workpiece, weld into a deep and narrow. The minimum heat input. Because the temperature is very high, the holes in the melting process happened so fast, input workpiece low heat, heat distortion and heat affected zone is very small. High density. Full of hot steam Kong Youli weld pool stirring and gas to escape, leading to generate stomatal penetration welds. High cooling rate after welding, easy to make the weld miniaturization. Strong weld. Fully absorb the hot heat source and non-metallic components to reduce the impurities to change the mixture of size and its distribution in the weld pool. Welding process without electrode or filler wire to the molten zone contaminated, making the weld strength, toughness is at least equivalent to or even more than the parent metal.
green laser pointer can serve as normal laser pens for teaching
Butt joints in this more sensitive than the lap of the knot. For example, when the hardened steel gear low carbon steel welded to the drum, the right to control the laser beam position will benefit mainly low-carbon component composition of the weld, the weld has good crack resistance. Some applications, the geometry of the workpiece being welded requires a laser beam deflection angle between the beam axis and joint plane deflection of less than 100 degrees, the workpiece on the absorption of laser energy will not be affected. Welding start and end point of the laser power gradually, gradually decreased to control. Deep penetration laser welding, the weld depth of the holes phenomenon always exists. When the welding process to terminate, turn off the power switch, weld the end of the pit. The lecturer can use green laser pointer with remote control in the back of a lecture hall.
In addition, when the laser welding layer covering the original weld, there will be excessive absorption of the laser beam, resulting in the weldment overheating or blowholes. In order to prevent the above phenomenon, become adjustable power starting and ending points of programming, so that the power of the starting and ending time, namely starting power electronics approach to value set from zero rose to power in a short period of time, and adjust the welding time, and finally in the welding of termination of power by setting the power is gradually reduced to zero value. Laser deep penetration characteristics and the advantages and disadvantages. Laser deep penetration characteristics. High aspect ratio. The technology used by green laser pointer with remote control becomes more and more advanced.
Because the molten metal is formed around a cylindrical high-temperature steam chamber and extends to the workpiece, weld into a deep and narrow. The minimum heat input. Because the temperature is very high, the holes in the melting process happened so fast, input workpiece low heat, heat distortion and heat affected zone is very small. High density. Full of hot steam Kong Youli weld pool stirring and gas to escape, leading to generate stomatal penetration welds. High cooling rate after welding, easy to make the weld miniaturization. Strong weld. Fully absorb the hot heat source and non-metallic components to reduce the impurities to change the mixture of size and its distribution in the weld pool. Welding process without electrode or filler wire to the molten zone contaminated, making the weld strength, toughness is at least equivalent to or even more than the parent metal.
2013年1月28日星期一
But the focus of laser pointer cannot be adjusted
But the focus of laser pointer cannot be adjusted.
In recent years the United States. LaserTech Leica launched the ranging capability of 1000 meters, the accuracy of one meter handheld telescope rangefinder, the price is only $ 300. Pulsed laser ranging system design of a second pulsed laser ranging system design. Laser ranging system architecture system architecture principles to the following figure 2.1 shown below: Figure 2.1 The laser ranging system schematic structure of the system working principle describes as follows: microprocessor-controlled pulse generator circuit to generate the rising edge of approximately 5ns pulse width the approximately IOOnS the current pulse drive LD lasers produce a laser pulse to reach the target by the spectroscopic and collimating lens, the laser pulse diffuse reflectance surface. If the customer has the high requirement of brightness, we suggest the customer buy the green laser pointer .
Focused by the focusing lens, and by the receiver and amplifier circuit is converted into electrical signals, but also by the de facto discrimination circuit to produce the end of the pulse, a laser start pulse points in the same way reason spectroscope, after the timing circuit timing after the data calculated by the microprocessor to the LCD screen on showing the distance of the target from the distance measuring device. the system, receiving and amplifying circuit unit, de facto discrimination and the timing part of the circuit, and microprocessor and display part of this article focuses on the content will be specific sections of the detailed description below only in respect of the laser pulse generating circuit and the optical system for a summary of 2.2 Laser pulse generation circuit to the semiconductor laser (LD) as a pulsed laser source The main advantage is its small size. For this kind of customized service of laser pointer is more practical for the customer.Mentioned earlier the semiconductor PN or PIN photodetector internal amplification, thus restricting their sensitivity to further improved to solve this problem, it is designed photodetector with internal gain an avalanche photodetector (APD) In this sensor, due to the multiplier effect of the light quantum, a photon can produce 10-100 light and electron and hole photocurrent greatly increased significantly improves the light sensor sensitivity [3].
In recent years the United States. LaserTech Leica launched the ranging capability of 1000 meters, the accuracy of one meter handheld telescope rangefinder, the price is only $ 300. Pulsed laser ranging system design of a second pulsed laser ranging system design. Laser ranging system architecture system architecture principles to the following figure 2.1 shown below: Figure 2.1 The laser ranging system schematic structure of the system working principle describes as follows: microprocessor-controlled pulse generator circuit to generate the rising edge of approximately 5ns pulse width the approximately IOOnS the current pulse drive LD lasers produce a laser pulse to reach the target by the spectroscopic and collimating lens, the laser pulse diffuse reflectance surface. If the customer has the high requirement of brightness, we suggest the customer buy the green laser pointer .
Focused by the focusing lens, and by the receiver and amplifier circuit is converted into electrical signals, but also by the de facto discrimination circuit to produce the end of the pulse, a laser start pulse points in the same way reason spectroscope, after the timing circuit timing after the data calculated by the microprocessor to the LCD screen on showing the distance of the target from the distance measuring device. the system, receiving and amplifying circuit unit, de facto discrimination and the timing part of the circuit, and microprocessor and display part of this article focuses on the content will be specific sections of the detailed description below only in respect of the laser pulse generating circuit and the optical system for a summary of 2.2 Laser pulse generation circuit to the semiconductor laser (LD) as a pulsed laser source The main advantage is its small size. For this kind of customized service of laser pointer is more practical for the customer.Mentioned earlier the semiconductor PN or PIN photodetector internal amplification, thus restricting their sensitivity to further improved to solve this problem, it is designed photodetector with internal gain an avalanche photodetector (APD) In this sensor, due to the multiplier effect of the light quantum, a photon can produce 10-100 light and electron and hole photocurrent greatly increased significantly improves the light sensor sensitivity [3].
2013年1月27日星期日
The picture of green laser pointer will be included
The picture of green laser pointer will be included.
The green laser beam light of green laser pointer is not that stable
The following will be the thickness of classified materials, microstructure and properties of two different combinations of thick and ranging from thick description. 0.1mm/0.1mm of 316L grade
austenitic stainless steel sheet for 00Cr17Ni14Mo2 laser welding test by changing the welding parameters to obtain the excellent performance of welded joints. The test results show that, in the
selection of a small current, pulse width, high-speed, high frequency conditions of the weld from the central part of small equiaxed grains and the edge of small columnar crystals. Equiaxed grains
and columnar grains at the junction of the local emergence of a clear dividing line, as shown in Figure 1.5. Also found that the weld heat affected zone is very narrow, almost invisible. The
operation mode of laser pointer is very simple.
Figure 1.3 - Figure 1.4. Axis crystal hardness of the weld edge corresponding to the hardness of the fine columnar grain and center of the weld is small, the high hardness of the weld hardness than
the total on page 11 of Anhui University graduation project (thesis) report paper base metal, as shown in 1.6 shows. Because the hardness and grain size, content of alloying elements. Weld grain
than the parent material grain small, and therefore higher hardness; columnar grain alloy element content ratio of alloying elements in the axis crystal content is slightly higher, so the hardness
also slightly higher. Parent material tensile strength of 778 MPa, tensile strength of weld 739MPa, can reach 95% of the parent material, 14% of the elongation rate of the base metal, weld
elongation rate of 12% can be achieved by the mother 85% of the material. green laser pointer is very convenient for the customer to operate.
Joints decrease the mechanical properties the reason may be the dividing line at the junction of the weld middle-axis crystal and columnar grain. Fine columnar grain structure of equiaxed grains
Figure 1.4 weld edge, Figure 1.3 the center of the weld small, etc. Figure 1.5 weld center axis of crystal and the edge of the dividing line of the columnar crystals in Figure 1.6 316L
microhardness of the laser welding head distribution (2) Wudong Jiang et al. [16] of 2 mm / 2 mm thickness, containing 35.4% nickel Invar welding experiments, test single factor method, the choice
of process parameters such as shown in Table 1-1, each experiment to change the laser equipment a parameter.
The green laser beam light of green laser pointer is not that stable
The following will be the thickness of classified materials, microstructure and properties of two different combinations of thick and ranging from thick description. 0.1mm/0.1mm of 316L grade
austenitic stainless steel sheet for 00Cr17Ni14Mo2 laser welding test by changing the welding parameters to obtain the excellent performance of welded joints. The test results show that, in the
selection of a small current, pulse width, high-speed, high frequency conditions of the weld from the central part of small equiaxed grains and the edge of small columnar crystals. Equiaxed grains
and columnar grains at the junction of the local emergence of a clear dividing line, as shown in Figure 1.5. Also found that the weld heat affected zone is very narrow, almost invisible. The
operation mode of laser pointer is very simple.
Figure 1.3 - Figure 1.4. Axis crystal hardness of the weld edge corresponding to the hardness of the fine columnar grain and center of the weld is small, the high hardness of the weld hardness than
the total on page 11 of Anhui University graduation project (thesis) report paper base metal, as shown in 1.6 shows. Because the hardness and grain size, content of alloying elements. Weld grain
than the parent material grain small, and therefore higher hardness; columnar grain alloy element content ratio of alloying elements in the axis crystal content is slightly higher, so the hardness
also slightly higher. Parent material tensile strength of 778 MPa, tensile strength of weld 739MPa, can reach 95% of the parent material, 14% of the elongation rate of the base metal, weld
elongation rate of 12% can be achieved by the mother 85% of the material. green laser pointer is very convenient for the customer to operate.
Joints decrease the mechanical properties the reason may be the dividing line at the junction of the weld middle-axis crystal and columnar grain. Fine columnar grain structure of equiaxed grains
Figure 1.4 weld edge, Figure 1.3 the center of the weld small, etc. Figure 1.5 weld center axis of crystal and the edge of the dividing line of the columnar crystals in Figure 1.6 316L
microhardness of the laser welding head distribution (2) Wudong Jiang et al. [16] of 2 mm / 2 mm thickness, containing 35.4% nickel Invar welding experiments, test single factor method, the choice
of process parameters such as shown in Table 1-1, each experiment to change the laser equipment a parameter.
2013年1月25日星期五
The director will perform the incoming test of green laser pointer
The director will perform the incoming test of green laser pointer .
Based on laser-produced by stimulated emission. Describe the basic principles of stimulated emission, why can produce optical amplification? And to CO2 and YAG laser as an example composed of three
essential parts of the laser. Some have a metastable energy level structure of the material, in certain external energy such as solar energy, electrical, chemical and other excitation, allows low-
level atoms or ions from the excited to the high energy level. Under certain conditions, can lead to high-energy state in the number of atoms is greater than the number of atoms in the low-energy
state, this state is called "inversion." Details of outsourcing of green laser pointer needs to be discussed further.High power density laser by laser processing system under the control of the
CNC, designated parts of the metal surface scan, instant heat up the surface so that part, then use the excellent thermal conductivity of the metal itself, so that the surface is usually much
higher than in the cooling medium to obtain the cooling rate quench, thus changing the surface of the organization and performance parts, metal parts and components to improve surface hardness,
wear resistance, corrosion resistance and strength and high temperature performance.
Its research and development of laser cutting, welding, cladding, and other aspects of laser remanufacturing process results have been widely used in the Mercedes-Benz, BMW, Audi, Volkswagen and
other auto companies and Airbus aircraft company. German company Trumpf fast axial flow CO2 laser series products RF power and Rofin's family of RF slab CO2 laser power, the United States PNA's CP
series lasers are specialized high-voltage switching power supply company to provide. Competition in an invincible position in the domestic leading enterprises are developing a new
generation of industrial laser equipment and its applications: fiber lasers, ultraviolet lasers and precision processing equipment, high-power semiconductor lasers and welding, heat treatment
equipment, high-power disc laser and welding equipment, high-power gas laser welding and cutting equipment combinations. Batch sales of green laser pointer are popular.
In short, as China's shift from a manufacturing power to a manufacturing power, laser processing technology, more and more attention to the manufacturing sector, the domestic large-scale, heavy-
duty companies are increasingly concerned about the progress of laser processing equipment, China's laser processing industry of tomorrow must very bright.
U.S. Coherent (Coherent) in early 2001 will be sold to Israel Medical Laser Group ESC / Sharplan company, purchased a few engaged in manufacturing industrial laser company, monographs in the field
of industrial laser technology research and product development.
Based on laser-produced by stimulated emission. Describe the basic principles of stimulated emission, why can produce optical amplification? And to CO2 and YAG laser as an example composed of three
essential parts of the laser. Some have a metastable energy level structure of the material, in certain external energy such as solar energy, electrical, chemical and other excitation, allows low-
level atoms or ions from the excited to the high energy level. Under certain conditions, can lead to high-energy state in the number of atoms is greater than the number of atoms in the low-energy
state, this state is called "inversion." Details of outsourcing of green laser pointer needs to be discussed further.High power density laser by laser processing system under the control of the
CNC, designated parts of the metal surface scan, instant heat up the surface so that part, then use the excellent thermal conductivity of the metal itself, so that the surface is usually much
higher than in the cooling medium to obtain the cooling rate quench, thus changing the surface of the organization and performance parts, metal parts and components to improve surface hardness,
wear resistance, corrosion resistance and strength and high temperature performance.
Its research and development of laser cutting, welding, cladding, and other aspects of laser remanufacturing process results have been widely used in the Mercedes-Benz, BMW, Audi, Volkswagen and
other auto companies and Airbus aircraft company. German company Trumpf fast axial flow CO2 laser series products RF power and Rofin's family of RF slab CO2 laser power, the United States PNA's CP
series lasers are specialized high-voltage switching power supply company to provide. Competition in an invincible position in the domestic leading enterprises are developing a new
generation of industrial laser equipment and its applications: fiber lasers, ultraviolet lasers and precision processing equipment, high-power semiconductor lasers and welding, heat treatment
equipment, high-power disc laser and welding equipment, high-power gas laser welding and cutting equipment combinations. Batch sales of green laser pointer are popular.
In short, as China's shift from a manufacturing power to a manufacturing power, laser processing technology, more and more attention to the manufacturing sector, the domestic large-scale, heavy-
duty companies are increasingly concerned about the progress of laser processing equipment, China's laser processing industry of tomorrow must very bright.
U.S. Coherent (Coherent) in early 2001 will be sold to Israel Medical Laser Group ESC / Sharplan company, purchased a few engaged in manufacturing industrial laser company, monographs in the field
of industrial laser technology research and product development.
2013年1月24日星期四
The performance of green laser pointer has been accepted
The performance of green laser pointer has been accepted by the quality group.
Laser quenching is rapid heating, since the shock cooling no furnace insulation and cooling liquid quenching, a non-polluting green heat treatment process can be easy to implement uniform hardening of the large surface of the mold. Fast laser heating, the heat affected zone is small, the surface scan heating quenching, ie, instantaneous local heating quenching deformation is small, so the mold processing. As the laser beam divergence angle is small, has a good point, accurate local quenching by the optical system of the mold surface. Laser surface hardening depth of hardened layer is generally 0.3 ~ 0.7mm, its application is subject to certain restrictions. The choice of process parameters affecting the quality of laser hardening process parameters is multifaceted. The expert has confirmed the performance of green laser pointer .Every three-in-one green laser pointer with wireless microphone is used in different classrooms
Laser power, scan speed, spot size, beam energy distribution, the light absorbing coating type and thickness. The key indicators to measure the quality of laser hardening the surface roughness of the hardened layer depth, width, hardness and hardened layer. The key relationships between the following points: laser unit time in the mold of the power density, will determine the effect of laser hardening. The workshop plans to perform the lean production for the new type of green laser pointer .
Within the range of 102 ~ 104W/cm2 s increased power density, scanning speed decreases, will allow the mold hardened layer depth, hardness and surface roughness of the hardened layer increases. If the power is too large, the scanning speed is too slow, that is too much power, exceeding the above range will cause the surface melting, burning; the contrary, the hardness and the depth of hardened layer will reach the technical requirements. Laser hardened layer width is determined by the spot size. Quenching of a large area must be multi-channel scanning. Broadband scanning narrowband scanning efficiency. The beam energy distribution of the hardened layer depth, width and organizations uniformity. It is determined by the beam pattern and the optical system. Typically, according to the actual situation of the equipment should be adjusted to the best state, in order to ensure the uniformity of the hardened layer.
Laser quenching is rapid heating, since the shock cooling no furnace insulation and cooling liquid quenching, a non-polluting green heat treatment process can be easy to implement uniform hardening of the large surface of the mold. Fast laser heating, the heat affected zone is small, the surface scan heating quenching, ie, instantaneous local heating quenching deformation is small, so the mold processing. As the laser beam divergence angle is small, has a good point, accurate local quenching by the optical system of the mold surface. Laser surface hardening depth of hardened layer is generally 0.3 ~ 0.7mm, its application is subject to certain restrictions. The choice of process parameters affecting the quality of laser hardening process parameters is multifaceted. The expert has confirmed the performance of green laser pointer .Every three-in-one green laser pointer with wireless microphone is used in different classrooms
Laser power, scan speed, spot size, beam energy distribution, the light absorbing coating type and thickness. The key indicators to measure the quality of laser hardening the surface roughness of the hardened layer depth, width, hardness and hardened layer. The key relationships between the following points: laser unit time in the mold of the power density, will determine the effect of laser hardening. The workshop plans to perform the lean production for the new type of green laser pointer .
Within the range of 102 ~ 104W/cm2 s increased power density, scanning speed decreases, will allow the mold hardened layer depth, hardness and surface roughness of the hardened layer increases. If the power is too large, the scanning speed is too slow, that is too much power, exceeding the above range will cause the surface melting, burning; the contrary, the hardness and the depth of hardened layer will reach the technical requirements. Laser hardened layer width is determined by the spot size. Quenching of a large area must be multi-channel scanning. Broadband scanning narrowband scanning efficiency. The beam energy distribution of the hardened layer depth, width and organizations uniformity. It is determined by the beam pattern and the optical system. Typically, according to the actual situation of the equipment should be adjusted to the best state, in order to ensure the uniformity of the hardened layer.
2013年1月22日星期二
The workshop should prepare all documents about green laser pointer
Small particles in welding fumes also affect the health of workers, the smaller the particle size, the greater the harm. In addition, many of the welding process produces harmful gases and smoke, common such as carbon dioxide, ozone and heavy metal oxides. These gases are harmful to the operator with no experience and effective ventilation measures. Is worth noting that, a lot of protection adopted by the welding process gas and raw materials are flammable and explosive, the need to adopt appropriate protective measures, such as control of the content of oxygen in the air, and separate the flammable and explosive materials pile up [41] . Welding smoke extraction equipment commonly used to pumping the bulk of harmful gases, and high efficiency baffle air filter to filter. The forefront of welding technology development areas include: welding between the types of materials (such as the welding of iron and aluminum parts), new welding processes such as friction stir welding (various friction stir welding), the magnetic pulse welding (magnetic pulse welding), heat conduction seam solder (conductive heat seam welding) and laser hybrid welding (laser-hybrid welding). green laser pointer is for the laser indication and some other purpose.The workshop should prepare all documents about green laser pointer
Other studies focus on the scope of application of the expansion of existing welding processes, such as laser welding used in the aerospace and automotive industries. The researchers also hope to further improve the welding quality, especially to control the weld microstructure and residual stress in order to reduce the Deformation and fracture of the weld [44]. Narrow weld: the smallest angle deformation and lateral contraction to save the cost of technology: the welding speed, high production efficiency; optimize the design of more traditional means, can reduce the cost; no need accessories; prior to welding only need very simple standard working material optimization : Social and welding a wide range of variety of materials can accept different types of materials, welding automation of production process: all the process parameters and electrical parameters. green laser pointer is for the customer to use as the laser indication tool.
It can be easily carried out measurement control and testing in other words, electron beam welding it depth is relatively deep, laser welding is 15mm maximum depth of electron beam welding can reach 95mm or larger, depending on the circumstances. In addition, electron beam welding speed is very fast, to save time I save a lot of manpower; high precision electron beam welding, can guarantee that the product is welded out of high-quality, long life. Thus greatly improve the corporate image of the next house. The free-electron laser (Free-Electron Laser, referred to as FEL) is a completely new type of free electrons as the working substance of a coherent light source.
Other studies focus on the scope of application of the expansion of existing welding processes, such as laser welding used in the aerospace and automotive industries. The researchers also hope to further improve the welding quality, especially to control the weld microstructure and residual stress in order to reduce the Deformation and fracture of the weld [44]. Narrow weld: the smallest angle deformation and lateral contraction to save the cost of technology: the welding speed, high production efficiency; optimize the design of more traditional means, can reduce the cost; no need accessories; prior to welding only need very simple standard working material optimization : Social and welding a wide range of variety of materials can accept different types of materials, welding automation of production process: all the process parameters and electrical parameters. green laser pointer is for the customer to use as the laser indication tool.
It can be easily carried out measurement control and testing in other words, electron beam welding it depth is relatively deep, laser welding is 15mm maximum depth of electron beam welding can reach 95mm or larger, depending on the circumstances. In addition, electron beam welding speed is very fast, to save time I save a lot of manpower; high precision electron beam welding, can guarantee that the product is welded out of high-quality, long life. Thus greatly improve the corporate image of the next house. The free-electron laser (Free-Electron Laser, referred to as FEL) is a completely new type of free electrons as the working substance of a coherent light source.
2013年1月21日星期一
green laser pointer is utilized to indicate the direction
green laser pointer is utilized to indicate the direction.
The workshop has made the special design for logo of green laser pointer
At present, Germany's Volkswagen in the Audi A6, Audi A4, Golf and Passat and other roof using this technology, the BMW 5 Series, Opel Vectra models, and the Swedish Volvo models of production, the
laser welding is the rush. In China, Shanghai Volkswagen has been used in many models of laser technology to weld the roof and side wall of the outer plate, such as the Passat, Touran, etc.;
Shanghai GM new Regal, LaCrosse platform, the application of laser welding process. Figure 1 is the new Regal Shanghai GM's roof and side wall of the welding device used in the of 4kW pump laser,
weld identification, tracking systems and real-time monitoring of weld quality systems are all integrated in the laser welding head. In the daylight, the laser beam of this kind of green laser
pointer can be seen more clearly.
Welding the new Regal roof just ten seconds, compared with the traditional spot welding, welding quality and efficiency are greatly improved after welding. Without increasing the roof trim,
improved vehicle aesthetics. Compared with the traditional resistance spot welding joints using laser welding can significantly reduce joint groove width reduced to about 10mm (from 20mm), which
can reduce vehicle weight. Design connection, can be overlapped (overlap joint) and lap (fillet joint) two kinds. It can be seen from Figure 2, both the welding position differences. The
overlapping lower requirement on the positioning of the laser focus, just focus can be in the plates overlap the range, do not need to specialized seam tracking system. It is compared with green
laser pointer whose power is very low.
Electron beam and laser processing with a high energy density beam processing technology, the application of the field much the same energy density in the same paragraph of magnitude much higher
than other sources of heat. The same time, they are also extremely similar to the principle of the material. The electron beam welding and laser welding, principles of e-beam welding (electron beam
machining, EBM) under vacuum conditions, the electrons produced by the electron gun, acceleration, focusing the energy density of 106 ~ 109W/cm2 fine beam, high-speed (speed of light, 60% to 70%)
impact to the workpiece surface, and within a very short time, most of the electron kinetic energy is converted to heat, forming "hole" effect.
The workshop has made the special design for logo of green laser pointer
At present, Germany's Volkswagen in the Audi A6, Audi A4, Golf and Passat and other roof using this technology, the BMW 5 Series, Opel Vectra models, and the Swedish Volvo models of production, the
laser welding is the rush. In China, Shanghai Volkswagen has been used in many models of laser technology to weld the roof and side wall of the outer plate, such as the Passat, Touran, etc.;
Shanghai GM new Regal, LaCrosse platform, the application of laser welding process. Figure 1 is the new Regal Shanghai GM's roof and side wall of the welding device used in the of 4kW pump laser,
weld identification, tracking systems and real-time monitoring of weld quality systems are all integrated in the laser welding head. In the daylight, the laser beam of this kind of green laser
pointer can be seen more clearly.
Welding the new Regal roof just ten seconds, compared with the traditional spot welding, welding quality and efficiency are greatly improved after welding. Without increasing the roof trim,
improved vehicle aesthetics. Compared with the traditional resistance spot welding joints using laser welding can significantly reduce joint groove width reduced to about 10mm (from 20mm), which
can reduce vehicle weight. Design connection, can be overlapped (overlap joint) and lap (fillet joint) two kinds. It can be seen from Figure 2, both the welding position differences. The
overlapping lower requirement on the positioning of the laser focus, just focus can be in the plates overlap the range, do not need to specialized seam tracking system. It is compared with green
laser pointer whose power is very low.
Electron beam and laser processing with a high energy density beam processing technology, the application of the field much the same energy density in the same paragraph of magnitude much higher
than other sources of heat. The same time, they are also extremely similar to the principle of the material. The electron beam welding and laser welding, principles of e-beam welding (electron beam
machining, EBM) under vacuum conditions, the electrons produced by the electron gun, acceleration, focusing the energy density of 106 ~ 109W/cm2 fine beam, high-speed (speed of light, 60% to 70%)
impact to the workpiece surface, and within a very short time, most of the electron kinetic energy is converted to heat, forming "hole" effect.
2013年1月20日星期日
the working condition of green laser pointer will be the best
Therefore, the working condition of green laser pointer will be the best.
Confocal spherical interferometer reflectivity R and fine constant F between this experiment into the acousto-optic loss modulator to achieve mode-locking laser with 633nm He-Ne laser cavity. The gain characteristics of the He-Ne laser medium is a non-uniform broadening type. If the laser cavity length is not too short, there will be more than one laser longitudinal mode oscillation (in this experiment only discuss the fundamental transverse mode). Adjacent longitudinal mode circular frequency difference where c is the speed of light, L is the cavity length. If the gain linewidth of the laser medium is ΔωG, the N-longitudinal mode laser cavity will exist: in the cavity N longitudinal mode light field can be expressed as. In ω0 for the gain line width at the center of longitudinal mode frequency. Usually in the beginning of the N-longitudinal-mode free oscillation of the laser there is no fixed relationship between the phase φn. And it is good for maintaining green laser pointer .
Each other is a random variable. Average much larger than the longitudinal mode oscillation period of time (3) light force, and assuming that the longitudinal mode amplitude equal ie, En = E0 can be laser total intensity is proportional to the intensity of the longitudinal mode. Scanning interferometer observation of the longitudinal mode spectrum, we can see each longitudinal mode intensity random fluctuation. If we in some way so that a fixed link between the laser total initial phase of the longitudinal mode or synchronous oscillation to meet all longitudinal mode laser cavity longitudinal mode coherent superposition. The sake of simplicity, so that (3) φn = 0, and En = E0 (22) and (24), available comparison shows that the longitudinal mode of the phase synchronization, the original continuous output of light intensity into a light intensity change with time and space. It is the limited warranty of green laser pointer .
Now on a fixed space or a fixed time to observe changes in light intensity characteristics. When the fixed spatial position (so that z = 0) observed (24), the changes over time (t), the relative intensity. (25) has the following characteristics: N have the same frequency interval of the synchronous oscillation, allows laser light into a time-varying pulse sequence, pulse period T to T is a light pulse in the cavity round-trip propagation time required time.
Confocal spherical interferometer reflectivity R and fine constant F between this experiment into the acousto-optic loss modulator to achieve mode-locking laser with 633nm He-Ne laser cavity. The gain characteristics of the He-Ne laser medium is a non-uniform broadening type. If the laser cavity length is not too short, there will be more than one laser longitudinal mode oscillation (in this experiment only discuss the fundamental transverse mode). Adjacent longitudinal mode circular frequency difference where c is the speed of light, L is the cavity length. If the gain linewidth of the laser medium is ΔωG, the N-longitudinal mode laser cavity will exist: in the cavity N longitudinal mode light field can be expressed as. In ω0 for the gain line width at the center of longitudinal mode frequency. Usually in the beginning of the N-longitudinal-mode free oscillation of the laser there is no fixed relationship between the phase φn. And it is good for maintaining green laser pointer .
Each other is a random variable. Average much larger than the longitudinal mode oscillation period of time (3) light force, and assuming that the longitudinal mode amplitude equal ie, En = E0 can be laser total intensity is proportional to the intensity of the longitudinal mode. Scanning interferometer observation of the longitudinal mode spectrum, we can see each longitudinal mode intensity random fluctuation. If we in some way so that a fixed link between the laser total initial phase of the longitudinal mode or synchronous oscillation to meet all longitudinal mode laser cavity longitudinal mode coherent superposition. The sake of simplicity, so that (3) φn = 0, and En = E0 (22) and (24), available comparison shows that the longitudinal mode of the phase synchronization, the original continuous output of light intensity into a light intensity change with time and space. It is the limited warranty of green laser pointer .
Now on a fixed space or a fixed time to observe changes in light intensity characteristics. When the fixed spatial position (so that z = 0) observed (24), the changes over time (t), the relative intensity. (25) has the following characteristics: N have the same frequency interval of the synchronous oscillation, allows laser light into a time-varying pulse sequence, pulse period T to T is a light pulse in the cavity round-trip propagation time required time.
2013年1月18日星期五
The wavelength of the laser light of green laser pointer
The wavelength of the laser light of green laser pointer contains 405nm and 445nm which emit blue violet laser beam.
The fiber laser used in the existing communications system can support a higher transfer rate, high bit rate DWDM systems and the future basis of coherent communication. High-power laser cutting machine Products Gantry Laser Cutting Machine Features: Gantry Laser Cutting Machine Features: third-generation suspension gantry structure, the intermediate driver, the overall high-rigidity Y bearing heavy beam to overcome the previous split processing and installation precision inconsistent defects, long-term stability to ensure that the flight axis optical and geometric precision. X axis adopts the imported ultra-high precision and high torque gearbox, greatly improves the dynamic performance, to ensure the accuracy of long-term stability. The wavelength of the laser light of green laser pointer contains 532nm which emits green laser beam.
Internationally renowned brand of precision rack and pinion, together with good lubrication, and to ensure stable and reliable operation. With independent research and the optical path of the optical path compensation device, to achieve the processing within the spot diameter, a constant focus. A good dust removal system is the basis of long-term stability to ensure cutting partition timeshare dust structure, to ensure rapid response to the cutting position, to achieve the best effect of dust. Outside the light path components selected in the United States II - VI company to avoid the lens condensation generated by the water-cooled machine independent cooling system. The refrigeration unit has two separate water supply system, all the way to the cooling laser generator, all the way to separate refrigeration outside the optical path, and has a low temperature start function, the LCD temperature control status, and fault diagnosis display. green laser pointer can be classified according to application of the laser pointer.Key words: Key words double-clad optical fiber laser doped fiber as early as 1961, Snitzer of American Optical Company (American Optical Corporation), etc. proposed the idea of a fiber laser, but due to the limitations of the prevailing conditions, progress is very slow . Into the mid-1980s, Townsend invented the solution doping technology (Solution doping technique). Since then, Poole, such as using a modified chemical vapor deposition (MCVD) for the development of low-loss erbium-doped fiber, a number of laboratories from the erbium-doped fiber wavelength of 1.5um and up to 30dB of optical amplification gain, causing the people's high attention.
The fiber laser used in the existing communications system can support a higher transfer rate, high bit rate DWDM systems and the future basis of coherent communication. High-power laser cutting machine Products Gantry Laser Cutting Machine Features: Gantry Laser Cutting Machine Features: third-generation suspension gantry structure, the intermediate driver, the overall high-rigidity Y bearing heavy beam to overcome the previous split processing and installation precision inconsistent defects, long-term stability to ensure that the flight axis optical and geometric precision. X axis adopts the imported ultra-high precision and high torque gearbox, greatly improves the dynamic performance, to ensure the accuracy of long-term stability. The wavelength of the laser light of green laser pointer contains 532nm which emits green laser beam.
Internationally renowned brand of precision rack and pinion, together with good lubrication, and to ensure stable and reliable operation. With independent research and the optical path of the optical path compensation device, to achieve the processing within the spot diameter, a constant focus. A good dust removal system is the basis of long-term stability to ensure cutting partition timeshare dust structure, to ensure rapid response to the cutting position, to achieve the best effect of dust. Outside the light path components selected in the United States II - VI company to avoid the lens condensation generated by the water-cooled machine independent cooling system. The refrigeration unit has two separate water supply system, all the way to the cooling laser generator, all the way to separate refrigeration outside the optical path, and has a low temperature start function, the LCD temperature control status, and fault diagnosis display. green laser pointer can be classified according to application of the laser pointer.Key words: Key words double-clad optical fiber laser doped fiber as early as 1961, Snitzer of American Optical Company (American Optical Corporation), etc. proposed the idea of a fiber laser, but due to the limitations of the prevailing conditions, progress is very slow . Into the mid-1980s, Townsend invented the solution doping technology (Solution doping technique). Since then, Poole, such as using a modified chemical vapor deposition (MCVD) for the development of low-loss erbium-doped fiber, a number of laboratories from the erbium-doped fiber wavelength of 1.5um and up to 30dB of optical amplification gain, causing the people's high attention.
2013年1月17日星期四
The power of green laser pointer fluctuates at 50mW
The power of green laser pointer fluctuates at 50mW.
Due to its unique characteristics, especially suitable for use in the sensor seal welding, many foreign manufacturers of the production sensors use laser welding process to produce sensor, while the domestic use of the small manufacturers of this technology, mainly the production of military sensor products manufacturers and some research institutions in the use of such technology, and the use of foreign laser welding machine more. Domestic laser welding machine performance and foreign products, not far off, fully capable of the domestic production process requirements of the sensor, but the price is 1/3-1/5 of the similar foreign products. In order to improve the overall level of domestic sensors and the development of national laser industry. If the power of green laser pointer is fixed.
Precision laser processing technology to the sheet (0.1 to 1.0 mm) as the main processing, machining accuracy is generally in the 10 micron; laser micromachining technology as the main processing for a variety of film thickness below 100μm, Its precision is generally less than ten microns or even sub-micron level. It must be noted that, in the machinery industry, precision usually refers to the surface roughness is small, a variety of tolerance (including the location, shape, size, etc.) range. Laser precision machining is a non-contact processing, there is no mechanical force. If the power of green laser pointer is focusable.
EDM, plasma arc processing, the heat affected zone and the deformation is small, and thus able to process very small parts. In summary, laser precision machining technology has many advantages than the traditional processing methods, and its very broad application prospects. Introduction of the commonly used laser precision machining equipment. Generally used for precision machining lasers: CO2 lasers, YAG lasers, copper vapor lasers, excimer laser and CO laser, its laser characteristics detailed in literature [6,8,12-16]. High-power CO2 lasers and high-power YAG lasers in the large-scale laser processing technology to a wider application; copper vapor lasers and excimer lasers in laser micromachining technology, used more often. Or the power of green laser pointer can be focused by rotating the laser head.
Due to its unique characteristics, especially suitable for use in the sensor seal welding, many foreign manufacturers of the production sensors use laser welding process to produce sensor, while the domestic use of the small manufacturers of this technology, mainly the production of military sensor products manufacturers and some research institutions in the use of such technology, and the use of foreign laser welding machine more. Domestic laser welding machine performance and foreign products, not far off, fully capable of the domestic production process requirements of the sensor, but the price is 1/3-1/5 of the similar foreign products. In order to improve the overall level of domestic sensors and the development of national laser industry. If the power of green laser pointer is fixed.
Precision laser processing technology to the sheet (0.1 to 1.0 mm) as the main processing, machining accuracy is generally in the 10 micron; laser micromachining technology as the main processing for a variety of film thickness below 100μm, Its precision is generally less than ten microns or even sub-micron level. It must be noted that, in the machinery industry, precision usually refers to the surface roughness is small, a variety of tolerance (including the location, shape, size, etc.) range. Laser precision machining is a non-contact processing, there is no mechanical force. If the power of green laser pointer is focusable.
EDM, plasma arc processing, the heat affected zone and the deformation is small, and thus able to process very small parts. In summary, laser precision machining technology has many advantages than the traditional processing methods, and its very broad application prospects. Introduction of the commonly used laser precision machining equipment. Generally used for precision machining lasers: CO2 lasers, YAG lasers, copper vapor lasers, excimer laser and CO laser, its laser characteristics detailed in literature [6,8,12-16]. High-power CO2 lasers and high-power YAG lasers in the large-scale laser processing technology to a wider application; copper vapor lasers and excimer lasers in laser micromachining technology, used more often. Or the power of green laser pointer can be focused by rotating the laser head.
It can occur in the test and commission of green laser pointer
A variety of factors make plastics laser welding technology with the rapid development. In fact, in some applications, laser welding than ultrasonic welding, vibration welding, hot plate welding process more cost and performance advantages. In some public locations, the use of green laser pointer should be paid some attention to.
Optimistic about the prospects for laser welding.
The general characteristics of the laser welding. Laser welding is a thermal process using a laser beam as a heat source, it is compared with the electron beam and ion beam and general machining has many advantages: the laser focus of the laser beam spot is small, high power density welding some high melting point, high-strength alloy material. Laser welding is a non-contact processing, there is no tool wear and tool exchange and other issues. Laser beam energy is adjustable, move speed is adjustable, can be a variety of welding process. High degree of automation of laser welding can be controlled by computer, welding speed, high efficiency, to facilitate the welding of any complex shape. Laser welding heat affected zone material deformation is small, no follow-up processes to deal with. It is the burning performance of 50mW green laser pointer .It can occur in the test and commission of green laser pointer
Laser welding in a workpiece within a vacuum container and in the complex structure of the internal position of the workpiece through the glass. The laser beam is easy to lead, focus and direction to transform. Laser welding and electron beam processing do not require strict vacuum equipment, easy to operate. Laser welding of high production efficiency, stable quality and reliable, economic and social good. The laser welding process characteristics in the production of sensors. Laser used to seal welding sensor metal casing is one of the most advanced processing technology, mainly based on laser welding has the following characteristics: high aspect ratio. Weld deep and narrow weld bright and beautiful. The minimum heat input. Due to the high power density, the melting process is very fast. Can 50mW green laser pointer has the burning performance?Sensor manufacturers in China made laser welding machine should be adopted as soon as possible to production and processing sensor, in order to increase the competitiveness of their products, explore the international market. Laser Precision Machining Technology Status and Prospects. Very wide scope of laser material processing, sintering, drilling, marking, cutting, welding, surface modification and chemical vapor deposition and so has the laser as an essential energy. The laser beam can be focused to very small size, which is particularly suitable for precision machining.
Optimistic about the prospects for laser welding.
The general characteristics of the laser welding. Laser welding is a thermal process using a laser beam as a heat source, it is compared with the electron beam and ion beam and general machining has many advantages: the laser focus of the laser beam spot is small, high power density welding some high melting point, high-strength alloy material. Laser welding is a non-contact processing, there is no tool wear and tool exchange and other issues. Laser beam energy is adjustable, move speed is adjustable, can be a variety of welding process. High degree of automation of laser welding can be controlled by computer, welding speed, high efficiency, to facilitate the welding of any complex shape. Laser welding heat affected zone material deformation is small, no follow-up processes to deal with. It is the burning performance of 50mW green laser pointer .It can occur in the test and commission of green laser pointer
Laser welding in a workpiece within a vacuum container and in the complex structure of the internal position of the workpiece through the glass. The laser beam is easy to lead, focus and direction to transform. Laser welding and electron beam processing do not require strict vacuum equipment, easy to operate. Laser welding of high production efficiency, stable quality and reliable, economic and social good. The laser welding process characteristics in the production of sensors. Laser used to seal welding sensor metal casing is one of the most advanced processing technology, mainly based on laser welding has the following characteristics: high aspect ratio. Weld deep and narrow weld bright and beautiful. The minimum heat input. Due to the high power density, the melting process is very fast. Can 50mW green laser pointer has the burning performance?Sensor manufacturers in China made laser welding machine should be adopted as soon as possible to production and processing sensor, in order to increase the competitiveness of their products, explore the international market. Laser Precision Machining Technology Status and Prospects. Very wide scope of laser material processing, sintering, drilling, marking, cutting, welding, surface modification and chemical vapor deposition and so has the laser as an essential energy. The laser beam can be focused to very small size, which is particularly suitable for precision machining.
2013年1月10日星期四
The market prospect of green laser pointer should be analyzed
The market prospect of green laser pointer should be analyzed.
Cleavage plane in the forward over-current transient over voltages generated by the optical power can damage even in a few nanoseconds of time exceed the maximum allowable current of the semiconductor laser, will make destruction and damage. Produce surge causes and preventive measures: a laser diode driver no slow start, on and off circuit, finishing Optoelectronic Equipment Co., Ltd. to collect data from Shaanxi in the circuit the formation of a transitional process, ie turned on, the drive power to the magnitude of the overshoot, stabilized subsequently over-process. current overshoot of this drive easy to make the PN junction was electrical breakdown, damage or destruction of the cleavage plane was light even if the surge intensity or duration will not the first time you open the power to make lasers produce complete failure. It is enhancing the process of green laser pointer .
But also in the number of surges under the impact of accelerated semiconductor laser performance degradation and final failure. Therefore, the semiconductor laser drive power should adopt measures to slow start. Semiconductor laser tube socket by welding, but directly into the socket in order to facilitate the replacement of the tube sockets and socket of poor contact will cause the pass off arising from contact with the process of voltage surge. To do this, make sure that the semiconductor laser tube have a good and reliable electrical contact. the slow start circuit of the semiconductor laser and semiconductor laser capacitor capacitance excessive or capacitance charging voltage is too high, then turn off the power when the capacitor discharges can cause semiconductor laser over-current, so that the PN junction breakdown occurred cleavage plane is damaged. The sales situation of green laser pointer should be recorded.
The string into the drive circuit and the external circuit of the semiconductor laser drive circuit associated surge, resulting in laser breakdown should not be a laser diode driver circuit associated with the start frequently contain large capacitive or inductive load line between in order to pro forma surge noise filter to isolate some users required use of semiconductor laser frequency and or need to use the potentiometer to adjust the laser drive current and output power, if the potentiometer sliding contact in the sliding process, mechanical or dust caused by poor contact will lead to surge, laser hazards, so you want to check and selection of good potentiometer in order to prevent inadvertently missed in the adjustment process.
Cleavage plane in the forward over-current transient over voltages generated by the optical power can damage even in a few nanoseconds of time exceed the maximum allowable current of the semiconductor laser, will make destruction and damage. Produce surge causes and preventive measures: a laser diode driver no slow start, on and off circuit, finishing Optoelectronic Equipment Co., Ltd. to collect data from Shaanxi in the circuit the formation of a transitional process, ie turned on, the drive power to the magnitude of the overshoot, stabilized subsequently over-process. current overshoot of this drive easy to make the PN junction was electrical breakdown, damage or destruction of the cleavage plane was light even if the surge intensity or duration will not the first time you open the power to make lasers produce complete failure. It is enhancing the process of green laser pointer .
But also in the number of surges under the impact of accelerated semiconductor laser performance degradation and final failure. Therefore, the semiconductor laser drive power should adopt measures to slow start. Semiconductor laser tube socket by welding, but directly into the socket in order to facilitate the replacement of the tube sockets and socket of poor contact will cause the pass off arising from contact with the process of voltage surge. To do this, make sure that the semiconductor laser tube have a good and reliable electrical contact. the slow start circuit of the semiconductor laser and semiconductor laser capacitor capacitance excessive or capacitance charging voltage is too high, then turn off the power when the capacitor discharges can cause semiconductor laser over-current, so that the PN junction breakdown occurred cleavage plane is damaged. The sales situation of green laser pointer should be recorded.
The string into the drive circuit and the external circuit of the semiconductor laser drive circuit associated surge, resulting in laser breakdown should not be a laser diode driver circuit associated with the start frequently contain large capacitive or inductive load line between in order to pro forma surge noise filter to isolate some users required use of semiconductor laser frequency and or need to use the potentiometer to adjust the laser drive current and output power, if the potentiometer sliding contact in the sliding process, mechanical or dust caused by poor contact will lead to surge, laser hazards, so you want to check and selection of good potentiometer in order to prevent inadvertently missed in the adjustment process.
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