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Design and dynamics experiment of filter wheel mechanism of space coronagraph
Guo W(郭伟); Dou JP(窦江培); Xu MM(许明明); Kong LY(孔令一); Liu BL(刘宝禄); Chen B(陈博); Jiang S(江舒)
2023-04-04
Conference Name9th Symposium on Novel Photoelectronic Detection Technology and Applications (NDTA 2022), 2022
Source PublicationNinth Symposium on Novel Photoelectronic Detection Technology and Applications
VolumeSPIE Vol. 12617
Conference Date2022.11.2-4
Conference PlaceHefei, 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

Keywordcoronagraph 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
Identifierhttp://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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