| Calculations for the Pre-Calibration of LAMOST Active Optics |
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| 引用本文： | Yong Zhang and Xiang-Qun Cui National Astronomical Observatories / Nanjing Institute of Astronomical Optics & Technology,Chinese Academy of Sciences,Nanjing 210042, Graduate School of the Chinese Academy of Sciences,Beijing 100039. Calculations for the Pre-Calibration of LAMOST Active Optics[J]. 中国天文和天体物理学报, 2005, 5(3): 302-314 |
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| 作者姓名： | Yong Zhang and Xiang-Qun Cui National Astronomical Observatories / Nanjing Institute of Astronomical Optics & Technology Chinese Academy of Sciences Nanjing 210042 Graduate School of the Chinese Academy of Sciences Beijing 100039 |
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| 作者单位： | NationalAstronomicalObservatories／NanjingInstituteofAstronomicalOptics＆Technology,ChineseAcademyofSciences,Nanjing210042 |
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| 摘 要： | Large Sky Area Multi-Object Fibre Spectroscopic Telescope (L AMOST) is one of the major on-going national large scientific projects in China. Active optics is a key technology for the LAMOST with which the thin-mirror active optics and segmented-mirror active optics are tied in. A pre-calibration method considering all active forces and displacements specially for LAMOST has been developed in early 2004. We give a detailed mathematical derivation and calculation including numerical simulation and computer program realization of the pre-calibration method of LAMOST open-loop control for the third-order as-pherical aberration. We have also carried out calculations on the application of the pre-calibration method and the parameters of actuator design in LAMOST active optics in observation mode, including estimations of the actuator ranges, the interval of active optics correction and the ranges and trends of load changes on all the actuators during LAMOST tracking a given star.
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| 关 键 词： | 主动光学望远镜 LAMOST 刻度计算 镜片加工 |
Calculations for the Pre-Calibration of LAMOST Active Optics |
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| YongZhang Xiang-QunCui. Calculations for the Pre-Calibration of LAMOST Active Optics[J]. Chinese Journal of Astronomy and Astrophysics, 2005, 5(3): 302-314 |
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| Authors: | YongZhang Xiang-QunCui |
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| Abstract: | Large Sky Area Multi-Object Fibre Spectroscopic Telescope (LAMOST) is one of the major on-going national large scientific projects in China.Active optics is a key technology for the LAMOST with which the thin-mirror active optics and segmented-mirror active optics are tied in. A pre-calibration method considering all active forces and displacements specially for LAMOST has been developed in early 2004. We give a detailed mathematical derivation and calculation including numerical simulation and computer program realization of the pre-calibration method of LAMOST open-loop control for the third-order aspherical aberration. We have also carried out calculations on the application of the pre-calibration method and the parameters of actuator design in LAMOST active optics in observation mode, including estimations of the actuator ranges,the interval of active optics correction and the ranges and trends of load changes on all the actuators during LAMOST tracking a given star. |
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| Keywords: | active optics - telescopes - instrumentation |
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