After the pre-acceptance of cell phone jammers

After the pre-acceptance of cell phone jammers , the final acceptance of cell phone jammers will be implemented.
This value is called the critical power density of laser deep welding penetration depth: deep penetration laser penetration depth and the laser output power density is closely related to the function of power and spot diameter. laser welding process several effects in Figure 2-1 deep penetration holes schematic 43 laser drilling of 3.1 Laser Drilling Principle: the basic structure of the laser drilling machines, including laser processing head, cooling systems, numerical control device and operation face plate (Figure 3-1). Figure 3-1 Schematic of the laser drilling machine 3.2 laser drilling process parameters. Effects: pulse width of the pulse width of perforated punch depth, pore size, pore shape. Narrow pulse can be deeper and larger holes; wide pulse not only makes the hole depth, pore size, and hole surface roughness, dimensional accuracy decreased. The workshop has the specific requirement for manufacturing cell phone jammers .
The quality feedback of cell phone jammers will be discussed during the meeting
Defocus amount of drilling when the laser focus on the material surface in the laser drilling, the hole played deep, smaller taper. The focus is in a position under the surface under the same conditions, the deepest hole; and play too much into focus and defocus will make the laser power density is greatly reduced, and even labeled as a blind hole (Figure 3-2). Figure 3-2 defocus amount punch quality laser cutting principle and characteristics of 4.1 Laser cutting cutting laser beam focused into a small spot to reach the focus point high power density (more than 106W/cm2). Structure shown in Figure 4-1 for the laser cutting head, in addition to the lens outside, it also has a coaxial nozzle emitting the auxiliary gas flow.
The semiconductor laser optical fiber communication requirements of the semiconductor laser light source: semiconductor laser is a laser in a large family. Compared with the solid-state lasers, gas lasers, and other types of lasers, it has a small size, light weight, high electro-optical conversion efficiency can be directly modulated, ease of use, so it is ideal for fiber optic communication among Figure 9-1 shows the optical transmitter machine works. Figure 5-1 optical transmitter machine composed of block diagram 2. As a communication semiconductor laser light source: semiconductor laser is the main light source for optical fiber communication, optical fiber communication systems with different application-level and structure, and thus require different types of semiconductor lasers. The quality assurance of cell phone jammers has the high and strict requirement.