光电靶的设计与改进

Design and improvement of photoelectric target

为了测量枪、炮子弹的速度,提出一种基于光电转换的原理光电靶的设计方法。当光电靶工作时,火光或是环境光会影响光电靶产生误触发信号或是不能捕捉住弹丸过靶信号,影响了测试的准确度和灵敏度。采用新型的大面积激光光幕技术设计了光电补偿电路,将其干扰光引起的变化的光电流信号补偿掉,分析其原理,并用实验方法验证了设计的正确性。最后实弹测试其系统的有效性与实用性。结果表明,新型的补偿电路测速系统能够有效地抑制干扰光的影响。

In order to measure the velocity of bullets, a photoelectric target design methods is put forwarded. When the photoelectric target work, firelight or ambient light will bring an error trigger signal or can not capture the shot off target signal. These may affect accuracy and sensitivity of the system. The basic principle of the photoelectric target was described, using the large effective screen area technology and design of the photo compensation circuit. It can get rid of the signal that caused by ambient light interference. Experiments were performed to validate the correctness of the design. At the end, it is proved the validity and the usability of the system through the ball firing. As a result, the system of photoelectric target could resolve the effect of ambient light interference.