低纬子午环轴准直器稳定性的改善  

Stability of the Axial Collimator in the LLMC

作　　者：铁琼仙[1] 张周生[1] 冒蔚[1] 

机构地区：[1]中国科学院云南天文台,云南昆明650011

出　　处：《云南天文台台刊》2000年第4期38-41,共4页Publications of the Yunnan Observatoty

基　　金：国家自然科学基金(19833010)重点资助项目;国家天文观测中心专项经费资助

摘　　要：本文介绍了低纬子午环设置轴准直器测定枢轴不规则影响的必要性以及对其光轴指向稳定性的要求 ,分析了存在不稳定现象的原因 ,叙述了消除不稳定现象的方法和实施的效果 ,最后给出了枢轴不规则影响的量级和修正精度。The necessity for setting a axis collimator to determine the effect of irregular pivot axis and the requirement for the stability of the optical axis pointing are introduced in this paper.The cause for the phenomenon of instability is analyzed.The method to eliminate this phenomenon and its implement effect are also described.The magnitude of effect of the irregular pivot axis and the modified precision are also presented.

关 键 词：低纬子午环 轴准直器 改进 

分 类 号：P111.31[天文地球—天文学]