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Active Optics in LAMOST
Ding-Qiang Su; Xiang-Qun Cui
Source PublicationChinese Journal of Astronomy and Astrophysics
Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) is one of the major national projects under construction in China. Active optics is one of the most important technologies for new large telescopes. It is used for correcting telescope errors generated by gravitational and thermal changes. Here,however, we use this technology to realize the configuration of LAMOST, —a task that cannot be done in the traditional way. A comprehensive and intensive research on the active optics used in LAMOST is also reported, including an open-loop control method and an auxiliary closed-loop control method. Another important development is in our pre-calibration method of open-loop control, which is with some new features: simultaneous calculation of the forces and displacements of force actuators and displacement actuators; the profile of mirror can be arbitrary; the mirror surface shape is not expressed by a fitting polynomial, but is derived from the mirror surface shape formula which is highly accurate; a proof is given that the
solution of the pre-calibration method is the same as the least squares solution.
KeywordDistances And Redshifts Active Optics Adaptive Optics
Subject Area郭守敬望远镜(lamost) ; 主动光学
WOS IDWOS:000189162800001
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Cited Times:117[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Recommended Citation
GB/T 7714
Ding-Qiang Su,Xiang-Qun Cui. Active Optics in LAMOST[J]. Chinese Journal of Astronomy and Astrophysics,2004,4(1):1-9.
APA Ding-Qiang Su,&Xiang-Qun Cui.(2004).Active Optics in LAMOST.Chinese Journal of Astronomy and Astrophysics,4(1),1-9.
MLA Ding-Qiang Su,et al."Active Optics in LAMOST".Chinese Journal of Astronomy and Astrophysics 4.1(2004):1-9.
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