| Analysis and design of segment control system in segmented primary mirror | |
| Yu, Wenhao1,2,3; Li, Bin1,2,3; Chen, Mo1,2,3; Xian, Hao1,2 | |
| Source Publication | 0277-786X |
| Volume | 10463 |
| Pages | 104631T |
| 2017 | |
| Language | 英语 |
| Indexed By | Ei |
| Abstract | Segmented primary mirror will be adopted widely in giant telescopes in future, such as TMT, E-ELT and GMT. High-performance control technology of the segmented primary mirror is one of the difficult technologies for telescopes using segmented primary mirror. The control of each segment is the basis of control system in segmented mirror. Correcting the tilt and tip of single segment is the main work of this paper which is divided into two parts. Firstly, harmonic response done in finite element model of single segment matches the Bode diagram of a two-order system whose natural frequency is 45 hertz and damping ratio is 0.005. Secondly, a control system model is established, and speed feedback is introduced in control loop to suppress resonance point gain and increase the open-loop bandwidth, up to 30Hz or even higher. Corresponding controller is designed based on the control system model described above. © 2017 SPIE. |
| Keyword | Bandwidth - Bode diagrams - Control systems - Earth (planet) - Mirrors - Telescopes |
| Conference Name | Proceedings of SPIE: AOPC 2017: Space Optics and Earth Imaging and Space Navigation |
| EI Classification Number | 2017-2158 |
| Document Type | 会议论文 |
| Identifier | http://ir.ioe.ac.cn/handle/181551/9026 |
| Collection | 自适应光学技术研究室（八室） |
| Affiliation | 1.Key Laboratory of Adaptive Optics, Chinese Academy of Sciences, Chengdu; 610209, China; 2.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China; 3.University of Chinese, Academy of Sciences, Beijing; 100039, China |
| Recommended Citation GB/T 7714 | Yu, Wenhao,Li, Bin,Chen, Mo,et al. Analysis and design of segment control system in segmented primary mirror[C],2017:104631T. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2017-2158.pdf（642KB） | 会议论文 | 开放获取 | CC BY-NC-SA | Application Full Text | ||
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