High precision shape control of large deformable mirrors for adaptive optics | |
Li H(李浩); Hao HB(郝洪波); Zuo H(左恒) | |
2020-12 | |
Conference Name | SPIE ASTRONOMICAL TELESCOPES + INSTRUMENTATION |
Source Publication | Proc. SPIE 11448 |
Conference Date | 2020-12-13 |
Conference Place | California, United States |
Abstract |
In this paper, we propose a novel control method for high precision position control of large deformable mirrors with voice coil actuators. The controller consist of a low frequency force feedforward and a high frequency local position feedback.using force feedforward control, the dynamics of mirror can be contolled in faster settling times, and the local position controller based on the active disturbance rejection control(ADRC) algorithm guarantee the final stability of the high precision shape. we present the progress of the unit construction with a 7-actuator sub-system used to test the control method. Finally, by using experimental test, results confirm the validity of the proposed control scheme. |
Keyword | Adaptive Optics Voice Coil Actuator Control System Adrc Lot |
Subject Area | 天文技术与方法 |
Language | 英语 |
Document Type | 会议论文 |
Identifier | http://ir.niaot.ac.cn/handle/114a32/1777 |
Collection | 会议论文 |
Affiliation | 南京天文光学技术研究所 |
Recommended Citation GB/T 7714 | Li H,Hao HB,Zuo H. High precision shape control of large deformable mirrors for adaptive optics[C],2020. |
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File Name/Size | DocType | Version | Access | License | ||
High precision shape(578KB) | 会议论文 | 开放获取 | CC BY-NC-SA | View Download |
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