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针对10m×10m大靶面、高精度立靶坐标测量的要求,提出了一种激光阵列式光电立靶坐标测量系统,该立靶采用半导体激光平行光管形成平行光光源,高灵敏度光电二极管及相应信号放大、转换电路组成接收阵列,光源和接收器件相距10m,当飞行弹丸穿越激光形成的光幕时,分别在X和Y方向上挡住了投射在某一个或几个光电二极管上的光线,该光电二极管对应的信号放大、转换电路将二极管产生的微弱电信号放大、整形,最后输出脉冲信号,后续信号编码识别电路将判断出被挡住光线的光电二极管的编号,进而得出弹丸穿越该光幕的X坐标和Y坐标。经实弹试验证明,系统具有测量靶面大,精度高的优点。
Aiming at the requirement of 10m × 10m large target and high precision target setting, a laser array photoelectric target coordinate measuring system is proposed. The target adopts semiconductor laser collimator to form parallel light source, high sensitivity photodiode and The corresponding signal amplification, the conversion circuit composed of the receiving array, the light source and the receiving device away from the 10m, when the flying projectile through the laser light curtain, respectively, in the X and Y direction blocking the light projected on one or several photodiodes, The signal corresponding to the photodiode is amplified. The conversion circuit amplifies and shapes the weak electrical signal generated by the diode, and finally outputs the pulse signal. The subsequent signal code recognition circuit judges the number of the photodiode blocked by the light, and then obtains that the projectile crosses the light Curtain X and Y coordinates. The actual bomb test proved that the system has the advantages of large measuring target surface and high precision.