Correction experiment of 620 m thin mirror active optics telescope

	Correction experiment of 620 m thin mirror active optics telescope
	Li H.; Zhang J.; Zhang Z.; Wang H.; Wang M.
	2014
发表期刊	Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
ISSN	ISBN/10072276
卷号	43 期号:1 页码:166-172
摘要	For 620 mm diameter active optics telescope, surface error correction for primary mirror and system wavefront aberration correction experiment were carried out respectively. The support system of primary mirror consisted of 36 axial active supports and 6 lateral passive supports, in which 33 axial supports were used for active correction, and 3 were used as dummy hard points for controlling the position of primary mirror. The Shack-Hartmann wavefront sensor was used as testing equipment and the least square method was used to calculate the active corrective forces. In the experiment, low frequency Zernike terms were selected for correction through analyzing the correction ability of the system. Through fixing the S-H sensor at the curvature center of primary, the mirror surface error correction experiment was carried out at different elevation, and around 0.6RMS surface error of the initial state can be corrected to /12-/15 RMS. Then the wavefront error of the telescope system was corrected using the star object of collimator, around 0.65RMS of the initial state was corrected to 0.2RMS, and the resolution is improved from 18 lp/mm to 45 lp/mm correspondingly.
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/43813
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li H.,Zhang J.,Zhang Z.,et al. Correction experiment of 620 m thin mirror active optics telescope[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2014,43(1):166-172.
APA	Li H.,Zhang J.,Zhang Z.,Wang H.,&Wang M..(2014).Correction experiment of 620 m thin mirror active optics telescope.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,43(1),166-172.
MLA	Li H.,et al."Correction experiment of 620 m thin mirror active optics telescope".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 43.1(2014):166-172.

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