Thursday, August 9, 2012

This kind of cell phone jammer can be divided into red laser beam laser pointer

 This kind of  cell phone jammer can be divided into red laser beam laser pointer, blue laser beam laser pointer and green laser beam laser pointer.
1990s developed the digital level is a more advanced water level can be effective in reducing human error and improve accuracy and efficiency. Digital Level with a special bar code leveling rod, through the instrument's built-in digital imaging systems, automatic acquisition of the bar code reading of the leveling rod. Although this water level can achieve the automation of reading, but they want to use the bar code optical imaging to the sensor readings, so it is the dependence of the light conditions, the more difficult to adapt some little light under the conditions of measurement. Laser level of the improvement program. Laser Level and Digital Level has its own strengths and weaknesses, if the technical principles of these two instruments combine to make them the length of complementarity, to achieve the purpose of weaknesses. Based on the above thinking, the following improvements.How to perform the sampling inspection of cell phone jammer ?
PIC MCU is used in pulsed laser power supply system, the trigger of the laser power systems, pre-fuel pump circuit, the discharge circuit and auxiliary circuit control. Intelligent detection and control of power system parameters. Power pulse discharge current, discharge time, control system design of the protection circuit, to minimize the impact of the discharge current and other interference in the control system to ensure the normal working of the system. The system unit circuit design using the Modular Smart cell design and the bus control to the serial port and serial communication protocol, completion of the intelligent control unit and the main control unit of information transfer. Remote exchange of information between the host microcontroller and host PC. How to determine the quality level of cell phone jammer ?The exit beam divergence due to diffraction effects, with the objective aperture size. According to the hole in the Fraunhofer diffraction theory shows, a diameter D of the hole caused by the diffraction angle (ie half of the beam divergence angle) is: where is the laser wavelength. General aperture of the telescope objective, so the beam out of the shooting aperture diffraction effects due to beam divergence is usually negligible. The image above diaphragm A is to reduce the influence of stray light, so that the edge of the spot into a neat and clear round to further improve the directionality of the beam. Laser collimator the optoelectronic goal target.

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