介绍了一种利用PSD器件实现观瞄系统光轴平行性的原位检测方法, 对大轴间距光路采用折转光路设计进行压缩, 减小了测试系统外形尺寸, 提高了系统机械稳定性; 对光斑重心位置的测量采用了高精度位置传感器PSD, 简化系统结构, 提高了测量精度。

An original location inspection method using the position sensitive detector (PSD) for the optic-axis parallelism of the observation and aiming system is introduced. The bend-over design of optic path compresses the big axis distance into small, reduces the size of the detection system and enhances its stability. The high precision PSD is used to detect the gravity position of light spot to simplify system structure and improve measurement accuracy.