温度对子午环(DCMT)光路系统影响的测试与讨论  

Test and Analysis of the Image Variation with Temperature on DCMT

作　　者：杜慕群 

机构地区：[1]中国科学院陕西天文台

出　　处：《陕西天文台台刊》1992年第2期158-164,共7页Publications of The Shaanxi Astronomical Observatiory

摘　　要：鉴于在子午环安装调试以及试观测过程中发现的温度对光路系统各部件影响引起的像位置的变化,就光路系统各部件随温度变化引起的各个像的位置作了较详细的讨论,在对三段时间的测试结果分析讨论后,得出了各像位置与温度存在明显的线性关系的结论,同时计算得到了光路系统各部分随温度变化的量级,由此提出了完善子午环光路系统的设想。In the courses of adjusting and observing for DCMT, the image position variation with temperature was found. In this paper, the position variation of each image, which is related to the variation of optical system, are discussed. Based on the analyses of the data for several durations, we found that the linear relationship obviously exists between the position of each image and the temperature, meanwhile, the variation of each part of the optical system with the temperature is calculated quantitatively, thereby a suggcrtion of improving the design of optical system is put forward.

关 键 词：水平子午环 温度 光学系统 

分 类 号：P111.31[天文地球—天文学]