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Angular micro-vibration test of an agile satellite high resolution camera based on liner accelerometer
Cui, Kai; Zheng, Zhiqi; Gao, Xiong; Yang, Yongqing; Li, Zhiguo; Li, Shuxiu
2019
Conference Name3rd International Conference on Photonics and Optical Engineering
Source PublicationThird International Conference on Photonics and Optical Engineering
Volume11052
Conference Date2018-12-05
Conference PlaceXi'an, China
PublisherSPIE
Contribution Rank1
AbstractThe angular micro-vibration of a high resolution camera mounting on an agile satellite was achieved based on pairs of liner accelerometers alignment and numerical integration method. Three pairs of sensors were mounted at different portion of the satellite for studying the structure transfer character, including the Reaction Wheel (RW)interface, the camera interface and the camera tail. The results showed that the RW original micro-vibration standard deviation (STD) output acquired at the RW interference was 1.63μrad at RW 400rpm and increased to 2.43μrad when the RW speed up to 800rpm. When transferring from RW to the camera interface, the angular vibration response STD was attenuated to 0.31μrad@400rpm and 0.27μrad@800rpm, and finally to the camera tail the angular vibration response STD became 0.31μrad@400rpm and 0.30μrad@800rpm. We can see that the satellite-camera structure has a good attenuation effect on the micro-vibration, the output angular micro-vibration STD is about 0.31μrad with an input of 1.63μrad?2.43μrad. the stiffness of the camera is pretty good, ensuring that the micro-vibration STD difference between the camera flange and the camera tail is smaller 0.03μrad. In addition, we found that the FOGs useful bandwidth wasn't insufficient when acquiring about 340Hz main frequency vibration signal in our case, even though a higher stiffness flange was recommended which connecting the FOG and camera. ? 2019 SPIE.
Department光电测量技术实验室
DOI10.1117/12.2521437
Indexed ByEI
ISBN9781510627796
Language英语
ISSN0277786X;1996765X
EI Accession Number20190806535037
Citation statistics
Document Type会议论文
Identifierhttp://ir.opt.ac.cn/handle/181661/31281
Collection光电测量技术实验室
AffiliationXi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi; 710119, China
Recommended Citation
GB/T 7714
Cui, Kai,Zheng, Zhiqi,Gao, Xiong,et al. Angular micro-vibration test of an agile satellite high resolution camera based on liner accelerometer[C]:SPIE,2019.
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