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叙述了将光电传感器的光轴相对固联于地理坐标系的转轴作切线运动并利用其切线位移模拟小角度偏转的方法。根据两轴初始零位对准值及切线位移量,由光电传感器的输出和所对应的角度偏移关系,获取光电传感器光轴的微小角度偏转量。该方法是一种简单有效的小角度偏移光电检测方法,可实现对微小角度偏移量的精密测量和实时读取,角度测量范围:±15°;测角精度:1″。
The method of tangential movement of the optical axis of the photoelectric sensor relative to the rotating shaft fixedly connected to the geographic coordinate system and using the tangential displacement to simulate the small-angle deflection is described. According to the initial alignment value of the two axes and the tangent displacement, the slight angular deflection of the optical axis of the photoelectric sensor is obtained from the relationship between the output of the photoelectric sensor and the corresponding angle offset. This method is a simple and effective method of small angle shift photodetection, which can achieve precise measurement and real-time reading of small angle offsets. The range of angle measurement is ± 15 ° and the angle measurement accuracy is 1 ".