摘要
中国科学院国家授时中心将骊山天文观测站1.05 m赤道式光学望远镜升级改造为光学观测和激光观测多功能的地平式望远镜,对原基墩进行相应的改造,但望远镜的旋转中心和圆顶的球心仍不能重合,圆顶天窗位置应相对于圆顶的球心,偏心装置望远镜指向与球心为准圆顶天窗位置有所不同。基于观测任务对望远镜圆顶和基墩进行改造(向北1.205 m,向上0.5 m),根据改造后的设计对目标运动进行了讨论,并给出了定量的改正计算公式,分析了基墩改造基本要求。通过计算结合当前基墩和圆顶的位置情况,对偏心圆顶进行随动补偿分析,找到满足望远镜在最高仰角观测时不影响观测的最佳位置。
The 1.05 meters of equatorial-mount optical telescope located at Mount Li,National Time Service Center,is upgraded for multi-functional altitude-azimuth mount telescope with capability for laser satellite ranging observations.Due to the change of mount type,the rotational center of the telescope and the center of the dome are not overlap,it is needed to move the pier to match the dome and telescope centers.A geometric analysis is carried out to find the best pier offset(1.205 m northward,0.5 m upward)to satisfy the maximum elevation Angle(87°)of the telescope.Meanwhile,the optimal altitude-azimuth angles relationship between the dormer and the telescopes is derived,which can be used in the servo follow-up system of the dormer.
作者
杨欣
李伟超
王霄
杨旭海
安元元
YANG Xin;LI Wei-chao;WANG Xiao;YANG Xu-hai;AN Yuan-yuan(National Time Service Center,Chinese Academy of Sciences,Xi’an 710600;Key Laboratory of Precise Positioning and Timing Technology,Chinese Academy of Sciences,Xi’an 710600,China;University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《时间频率学报》
CSCD
2021年第3期222-230,共9页
Journal of Time and Frequency
基金
中央、国家各部门资助项目(2019P173021000401)。
关键词
激光望远镜
方位角
偏心
圆顶随动系统
laser telescope
azimuth
eccentric
follow-up system of dome
