The Design of Laser Screens for Velocity Measurement System with Photoelectric DC Compensation

In order to improve accuracy of projectile velocity measurement and anti-jamming capability,a system of laser screens for velocity measurement with photoelectric DC compensation was presented.The method of dual-startup,dual-end,cut-off laser screens for velocity measurement was adopted.In addition,the photoelectric pre-amplifier circuit with DC compensation which is able to anti-jamming from strong ambient light was analyzed.The velocity measurement experiment of single 7.62mm projectile was conducted velocity measurement software based on Microsoft VC++.