Design and dynamics experiment of filter wheel mechanism of space coronagraph | |
Guo W(郭伟)![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
2023-04-04 | |
Conference Name | 9th Symposium on Novel Photoelectronic Detection Technology and Applications (NDTA 2022), 2022 |
Source Publication | Ninth Symposium on Novel Photoelectronic Detection Technology and Applications |
Volume | SPIE Vol. 12617 |
Conference Date | 2022.11.2-4 |
Conference Place | Hefei, China |
Abstract | In order to realize multi-spectral imaging of space coronagraph, a compact filter wheel mechanism is designed. The filters with different spectral transmittance can be cut into the optical path at different times by this mechanism. Because the image contrast of space coronagraph is very high, the high stability requirement for the optical unit of coronagraph is put forward. Small modulus worm gear and worm are taken by the mechanism, in order to realize compact structure, high stiffness, the unidirectional 360° rotation and reverse self-locking function. The precision, stiffness, mechanical properties and reliability of the mechanism are analyzed in the paper. The results show that the position accuracy of the filter wheel can meet the requirement of ≤±0.5mm. The first order modal of the mechanism is 313Hz. The results of vibration test indicate that stiffness, dynamic performance and reliability of the mechanism can be meet. Therefore, the design of filter wheel in this paper can ensure the multi-spectral imaging requirements under complex spatial conditions |
Keyword | coronagraph filter wheel mechanism precision analysis vibration test mechanical property |
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/114a32/2115 |
Collection | 中国科学院南京天文光学技术研究所知识成果 会议论文 |
Affiliation | 南京天文光学技术研究所 |
Recommended Citation GB/T 7714 | Guo W,Dou JP,Xu MM,et al. Design and dynamics experiment of filter wheel mechanism of space coronagraph[C],2023. |
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Design and dynamics (1830KB) | 会议论文 | 开放获取 | CC BY-NC-SA | View Download |
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