零位仪的电子细分读数方法及实现

为提高轻武器白光和微光瞄具零位测量仪的分辨率和精度，提出了电子细分读数方法。通过内置平板玻璃的平行光管模拟无穷远目标，调整水平和俯仰两个维度的平板玻璃，使无限远目标像偏移，进行光学对准补偿读数。采用两个高分辨率的角位移传感器，直接测量出两个维度上平板玻璃的偏转角，将测得的角度值经单片机数字化处理后显示在有机电致发光显示器（OLED）上，通过耦合棱镜将OLED上的像耦合到准直光路中。建立了测量的理论模型，采用高精度光电经纬仪标定测量，结果表明：该方法的分辨率可达到0.001 mil，误差小于0.03 mil，分辨率和精度较传统的机械细分读数方法均有较大改善。

Electronic Subdivision Reading Method of Zero Measuring Instrument and Its Implementation

An electronic subdivision reading method is proposed to improve the resolution and accuracy of zero testing instrument for day and night sights of small arms. The alignment readings are compensated by simulating an infinity target with the built-in flat glass collimator and adjusting the two pieces of flat glasses which are in horizontal and pitch dimensions, respectively, to offset the infinity target image. Two high-resolution angular displacement sensors are used to measure the deflection angles of the flat glasses in two dimensions, the measured angle values are digitally processed by using the microcontroller and displayed on an organic light-emitting diode (OLED) display, and the image on OLED is coupled to the collimated light path through a coupling prism. A theoretical model of measurement is established, and the measured results are calibrated using high precision photoelectric theodolite. The result shows that the resolution of the method is up to 0.001 mil and the error is less than 0.03 mil. Compared with the traditional mechanical subdivision reading method, the resolution and measuring accuracy of the proposed method are improved significantly.