This paper introduces the dual axis small Angle measuring system, which USES quadrant si-photoelectric cell as the detector, analyzes the measuring principle, experimental equipment.
介绍了利用高灵敏度四象限硅光电管作为探测器的二维小角度测量系统，详细分析了其测试原理及实验装置。
2
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。
3
According to spot in the four-quadrant detector photosensitive surface position to calculate the ship's yaw Angle relative to the laser source.