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The Micro-displacement Worktable Control System of Mirror Detection
Yu Ye; Zhenchao Zhang; Aihua Li
2008-07-14
Source PublicationAdvanced Software and Control for Astronomy II
Volume7019
Issue7019
PagesVol.7019 29-1-8
Conference Date2008-6-23
Conference PlaceMarseille, France
Funding OrganizationThe International Society for Optical Engineering
PublisherSPIE
Abstract
This paper mainly introduces hardware design and control method of the system which is used for detecting the MA segmented mirrors in the LAMOST. According to the demand of sub-aperture stitching interferometer, the system adopts a control card to control the stepping motor to drive the worktable moving on the X-Y. The MA sub-mirror surface will be changed through active optical correction and add-subtract power of force actuators. The detection result of the MA segmented mirror of 14 shows that root mean square (RMS) of
surface accuracy error is 21.387nm less than 0.035λ (λ =632.8nm). It is demonstrated that the control system can work very well and shorten the time of detection.
KeywordMirror Detection Micro-displacement Worktable Control System
Subject Area自动控制
Document Type会议论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/569
Collection中国科学院南京天文光学技术研究所_会议论文
望远镜工程中心_会议论文
Recommended Citation
GB/T 7714
Yu Ye,Zhenchao Zhang,Aihua Li. The Micro-displacement Worktable Control System of Mirror Detection[C]:SPIE,2008:Vol.7019 29-1-8.
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