The experiment came into use single light path critical angle method, output signals were detected by four-quadrant receiver, micro-displacement drive element were piezoelectric ceramics.
实验采用单光路临界角法，用四象限探测器探测输出信号，物面微位移采用压电陶瓷作为驱动元件。
A new method of reading the declination signal of gyros free rotor based on the four-quadrant sensor is introduced in this paper.
提出了一种陀螺仪自由转子偏角信号读取的方法，这种方法基于对反射光斑的四象限分割。
The system error introduced by the four-quadrant photocell and the error correction method are analyzed emphatically.
文中对测量误差进行了简要的论述，分析了四象限光电池引入的系统误差和修正方法。
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