锥体棱镜角度测量误差分析与仿真

Analysis and simulation of testing the angle of corner cube reflector

锥体棱镜应用广泛,但其二面角偏差没能实现测量的自动化。锥体棱镜二面角偏差的测量主要由二面角自身的误差、锥体棱镜面形误差等决定,分析了锥体棱镜的二面角偏差和干涉波面的关系,并对二面角偏差计算进行模拟仿真,模拟了锥体棱镜只有角度误差和角度误差、面形误差都存在这两种情况下的二面角偏差的计算,验证了程序的正确性,得到程序计算锥体棱镜二面角偏差的误差在0.3″范围内。

Corner Cube Reflector（CCR） was widely used, but the automatic test of the dihedral angle error of CCR was not realized. The measurement of the dihedral angle error of CCR was decided by the dihedral angle error itself and the wavefront aberration. The relationship between the dihedral angle error and the interference wavefront was analyzed. A program to test CCR was written. In which two cases were simulated, one was only the dihedral angel error in CCR existed, and the other was both the dihedral angel error and wavefront aberration existed. The program of CCR test is proved correct and the precision of computing the dihedral angel error is less than 0.3＂.