In order to make a variety of data and processing rate of more stringent requirements, these should be recorded and analyzed sound and light signals, and converts it into control signals back to the feedback loop to drive an electromechanical device, the laser welding systems, weld and compensation joint defects. Laser welding, there are two basic ways: conduction welding with deep penetration (holes) welding. Both ways the most fundamental difference is: the former pool surface remain closed, while the latter was the laser beam penetrates into the pool hole. Conduction welding small perturbation of the system, because the laser beam of radiation does not penetrate the welded materials, therefore, in the process of conduction welding seam gas can not easily be penetrated; and deep penetration, the holes can lead to continued close pores. Conduction mode welding and deep penetration welding can also be in the same process of conversion by conduction to the hole pattern is applied to the workpiece depends on the peak laser power density and laser pulse duration. Laser pulse energy density of the laser welding can be time-dependent laser material interaction during welding by a shift to another way that the interaction process in the weld can be formed in the conduction mode, then change way for the hole. The RF remote of Cell Phone Jammers is embedded with the wireless RF emitter of Cell Phone Jammers . After the reunification of students in the comparison of light painting. Conclusion: The beam shines on opaque objects, reflections occur at the interface; Conclusion: beam shines on opaque objects, reflections occur at the interface; the light shines on a transparent object is refracted at the interface. The object is refracted at the interface. ③ medium: light in the air, water, glass and other transparent material in the spread of these substances is called the medium: the light in the air, glass and other transparent material in the spread of the light medium. Optical media.What is the form of the light spot of a Cell Phone Jammers ? Light in the same medium must be along a straight line it? Teacher demonstration experiments: light in the same medium must be along a straight line it?The above mentioned example, laser processing equipment is made entirely of industrial lasers and laser processing systems and processes are implemented. Shows the domestic laser processing equipment has been in many industrial processes to meet the requirements of the import price than cheap laser processing machine several times, and maintenance services with timely, easy replacement of wearing parts and spare parts to the original and easy. Laser processing major applications in the electronics, automotive, machinery, iron and steel metallurgy, petroleum, light industry, medical equipment, packaging, gift industry, and so on, and increasingly expanding range of applications, from its annual sales growth can be seen that . On the basis of the foreign market seminar laser processing statistics, the output value of nearly four years are listed below (Table 1): As can be seen from Table 1, the laser processing system with an average annual sales growth rate of 13%.
