Active Optics in LAMOST | |
Ding-Qiang Su; Xiang-Qun Cui | |
2004-01-08 | |
Source Publication | Chinese Journal of Astronomy and Astrophysics |
Volume | 4Issue:1Pages:1-9 |
Abstract |
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. |
Keyword | Distances And Redshifts Active Optics Adaptive Optics |
Subject Area | 郭守敬望远镜(lamost) ; 主动光学 |
WOS ID | WOS:000189162800001 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.niaot.ac.cn/handle/114a32/375 |
Collection | 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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