Design and dynamics experiment of filter wheel mechanism of space coronagraph

Wei Guo; Jiangpei Dou; Mingming Xu; Linyi Kong; Baolu Liu; Bo Chen; Shu Jiang

doi:10.1117/12.2666360

4 April 2023 Design and dynamics experiment of filter wheel mechanism of space coronagraph

Wei Guo, Jiangpei Dou, Mingming Xu, Linyi Kong, Baolu Liu, Bo Chen, Shu Jiang

Proceedings Volume 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications; 126174K (2023) https://doi.org/10.1117/12.2666360
Event: 9th Symposium on Novel Photoelectronic Detection Technology and Applications (NDTA 2022), 2022, 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.

Citation Download Citation

Wei Guo, Jiangpei Dou, Mingming Xu, Linyi Kong, Baolu Liu, Bo Chen, and Shu Jiang "Design and dynamics experiment of filter wheel mechanism of space coronagraph", Proc. SPIE 12617, Ninth Symposium on Novel Photoelectronic Detection Technology and Applications, 126174K (4 April 2023); https://doi.org/10.1117/12.2666360

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available