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Proceedings Paper

Design of optical-mechanical structure for off-axis reflective star sensor ground calibration equipment
Author(s): Haoran Zhu; Yunqing Liu; Wenying Zhang
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Paper Abstract

Before the star sensor completes the attitude measurement task with the launch of the spacecraft, it must be calibrated on the ground. In order to meet the requirements of high precision star sensor calibration, according to some specific problems of optical structure of conventional ground calibration equipment in response to large aperture, long focal length and wide spectrum requirements, an off-axis collimator was designed as a collimating optical system, and the image quality was evaluated, and mechanical structure of the off-axis collimator was also designed in detail. Control technology of star brightness was researched and analyzed, and a set of lighting control system is designed. Analysis and test results show that a variety of seven consecutive magnitudes can be simulated by the lighting control system, and the simulated error between neighboring magnitudes is less than 8‰, to meet the current high precision star sensor calibration technical requirements.

Paper Details

Date Published: 24 October 2017
PDF: 8 pages
Proc. SPIE 10463, AOPC 2017: Space Optics and Earth Imaging and Space Navigation, 104630Z (24 October 2017); doi: 10.1117/12.2283210
Show Author Affiliations
Haoran Zhu, Changchun Univ. of Science and Technology (China)
Yunqing Liu, Changchun Univ. of Science and Technology (China)
Wenying Zhang, Changchun Univ. of Science and Technology (China)
Academy of Opto-Electronics (China)

Published in SPIE Proceedings Vol. 10463:
AOPC 2017: Space Optics and Earth Imaging and Space Navigation
Carl Nardell; Suijian Xue; Huaidong Yang, Editor(s)

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