Development status of the segmented mirror control system in Seimei Telescope

Development status of the segmented mirror control system in Seimei Telescope
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晴明望远镜分段镜控制系统的发展现状

DOI：
10.1117/12.2562019
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发表时间：
2020
期刊：
--
影响因子：
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通讯作者：
Katsuhiko Yamada
Katsuhiko Yamada
中科院分区：
--
文献类型：
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作者：
I. Jikuya;D. Uchida;M. Kino;M. Kurita;Katsuhiko Yamada

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本文简要介绍了目前晴明望远镜分块镜控制系统的发展状况。然后描述了分块镜控制中的建模和控制问题，以分享我们的经验。环和段中的总自由度（DOF）为57。将57个自由度分为54个非固定模态和3个固定模态。通过引入虚理想镜面的概念，选取了3种固定模式。54个非固定模式是分块镜控制系统的目标。外段固定法中的集中控制系统（CCS）已经研制成功，并已成功安装在Seimei望远镜上，现在开始报告科学结果。
This paper briefly explains the development status of the present segmented mirror control system in Seimei telescope. Modeling and control issues in segmented mirror control are then described to share our experience. The total degrees of freedoms (DOFs) in the ring and the segments are 57. 57 DOFs are separated into 54 non-fixed modes and 3 fixed modes. 3 fixed modes are selected by introducing the concepts of the virtual ideal mirror surface. 54 non-fixed modes are the target of the segmented mirror control system. The centralized control system (CCS) in the outer-segments-fixed method has been developed and has been successfully installed in Seimei telescope, and now scientific results are beginning to be reported.