摘要
本文主要讨论和分析了中丹水平子午环基框由于热变形引起的相对于基墩的方位变化;描述了水平子午环基框的结构及其4点支承的设计原理;介绍了基框方位变化的测试方法;给出了基框方位随温度变化的测试结果,分析表明其变化量大约为-0.18″/度。测试基框方位变化的目的,在于研究它随温度变化的规律,求出其变化量并修正观测结果。
In this paper, the variation of the azimuth of the DCMT base frame, related to the piers,with the temperature of the frame is discussed and analyzed. The construction of the base frame and the principle of four points support are described. The test method for the variation of the azimuth of the base frame are introduced, and the test results are presented. The test and analysis show that the variation of the azimuth with the temperature is -0.18'/k. The purposes of testing the varialition of the azimuth of DCMT base frame are to investigate the regularity of the variation and to get the variation quantity, so as to correct the observation results with them.
出处
《陕西天文台台刊》
CSCD
1991年第1期44-49,共6页
Publications of The Shaanxi Astronomical Observatiory
