四光幕精度靶中的信号处理电路

Design of Signal Process Circuit for Four-light Accuracy Optical Target

结合四光幕精度靶测量弹丸着靶坐标的工程实现,设计了相应的信号处理电路。分析了四光幕精度靶测试系统的组成,并给出测量公式。设计了长线驱动电路和模拟信号隔离触发电路,确保模拟弹形信号经过远距离传输无畸变,同时保证多路信号传输延时一致性。针对试验现场安装调试的方便,设计了对正指示电路。设计的信号处理电路进行实弹射击,测试的结果与纸靶进行比较,测量误差满足产品性能检验的精度要求。

Based on the engineering realization of the four-light accuracy optical target, the corresponding signal processing circuits are designed. The composition of the four-light accuracy optical target is analyzed, and the measurement formula is given in this paper. In order to ensure that the analog signal of projectile shape doesn＇t distort after long-distance transmission, long line driving circuit and the analog signal isolating trigger circuit are designed. It can also ensure that the consistency of the transmission delay of multi-channel signals. In allusion to the convenience of the installation and debugging of the fixing site, the indicate circuit is designed. The designed signal processing circuit dose firing test, the result of coordinate position is compared with the card- board target indicated that the measurement error satisfies the accuracy requirement of the performance examination of the product.