The mini design makes green laser pointer beautiful

The shielding shell electromagnetic shielding room using cold-rolled steel plate welded structure. Shielding shell with high-quality channel steel frame, steel and steel welded into a square grid, floors, walls and top, respectively, with thickness of 2 ~ 2.5mm high quality cold-rolled steel plate welded together. High strength and rigidity, can play a full physical protection and electromagnetic protection role. 2) PSD shielded room performance is good or bad, depending on whether the main factor in a high-performance PSD through the use of magnetic reed with the door on the "knife" crimp, so that the path of the leakage of electromagnetic waves increases, the requirements to achieve leak-proof. 3) The page-turning function, electronic pointer and green laser pointer combine in one, which is simple and practical.Power Filter filtering is the use of the spectral characteristics of the device to control the flow or absorption of harmful interference interference interference in order to achieve the purpose of control. Conducted interference suppression filtering technology is one of the principal means, but also improve the ability of electronic equipment against conducted interference an important measure. 4) calculation of the ventilation air flow through the waveguide, the waveguide size and number of ventilation selected, installed on the shielding shell hexagonal honeycomb ventilation waveguide window. Ventilation window in accordance with the microwave waveguide theory (as waveguide) and strict process, made of hexagonal honeycomb mold by vacuum cut-off waveguide lead solder composition. The mini design makes green laser pointer beautiful and portable.Frequency: 10kHz ~ 10GHz shielding performance: 100dB 5) cut-off waveguide f = 17.5 / d where: f-cut-off frequency. d-diameter circular waveguide tube. Of the integrated wiring system uses fiber optic cable into the shielded room of the way, shielded cable into the room through the waveguide, the waveguide length L is greater than 6d. In the shielded room by Optical, the optical signals into electrical signals, then through the cut-off optical waveguide, in the shielded room outside the optical signal into electrical signals. 4, common shielding materials 1) rubber gasket rubber core and braid shielded wire optional (Monel Ersi, tin-plated steel core wire), used in chassis, cabinets gap shielded, shielded rooms and shielded shelter. A trench and surface mount two ways. The green laser pointer is alloy in texture.2) conductive rubber shielding gasket A, conductive rubber sheet B, conductive rubber shielding of C, double-shielded conductive rubber inner liner: silicone rubber, the outer layer: conductive rubber. 3) Beryllium copper shielding gasket reeds reed made of beryllium copper for communications, computer, shielded rooms, cabins and other equipment shielded gap design. It can not afford to solve the other pad tangential movement problems, but also has high shielding effectiveness, but also has high thermal conductivity, pressure and good features. 4) The conductive adhesive A, grease conductive adhesive applications: conductive rubber sheet with metal bonding; conductive rubber to metal bonding. The green laser pointer has a feather-touch function button.B, epoxy conductive adhesive applications: metal to metal bonding; printed circuit board connections; microwave component lead connections; wire mesh shielding of fixed. 5) conductive filler (conductive putty) Application: used for shielding gasket can not increase the gap at the screen. 6) The magnetic shielding materials or below 100kHz operating frequency magnetic field shielding, the need to provide a very low reluctance to complete the surface, the magnetic field shielding materials with high permeability shielding material. 7) The Glass Shield application: electronic equipment requires a window light, such as: CRT, night crystal instrument display window.