低纬子午环光轴指向变化测定中的问题

The Pointing Variation of the Optical Axis in the LLMC

本文介绍了低纬子午环光轴指向变化的情况 ,指出这是无法用传统子午环的修正公式作摸拟的 ;文章叙述了自准直反射光经过两次反射甚至三次反射的现象及其处理方法 ,最后还指出了这套测量系统中的机械设计失误和改进的方法。

The pointing variation of the optical axis in the LLMC is introduced in this paper.It is pointed out that the variation is unable to simulate by the modified formula used in traditional meridian circles.Phenomena from two or three times of reflections of the autocollimation reflected light and corresponding processing methods are described.The defects in the mechanical design for the detection system and their improvement are presented.