99. Sun sensor design and test of a micro satellite

Li Lin1, Zhou Sitong2, Tan Luyang3, Wang Dong4

1, 3, 4Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences,
Changchun 130033, China

1, 3University of Chinese Academy of Sciences, Beijing 100049, China

2Northeast Normal University, Changchun 130024, China

4Chang Guang Satellite Technology Ltd., Changchun 130033, China

4Corresponding author

E-mail: 1ucas_lilin@163.com, 2nenu_stzhou@163.com, 3tanluyang12@outlook.com, 4simest@163.com

Received 4 August 2016; accepted 6 August 2016

DOI https://doi.org/10.21595/jme.2016.17518

Abstract. According to the requirement of small satellite, this paper designed a digital sun sensor which diaphragm is a V-shaped cross-section structure. Using Position Sensitive Detector (PSD) as the light detector, we designed the V-shaped cross-section structure based on the pinhole imaging principle. The sun sensor realized the accurate calculation for two axis sun angle of the sun sensor. The mechanical test, thermal test and testing of the sun sensor are designed and carried out. The mechanical test and thermal test results verify the stability of the sun sensor. Testing result shows that the detection angle can reach (120°)×(120°), and the attitude determination accuracy is better than 6” in the entire viewing field. The mass, volume and power consumption of the sun sensor is 0.177 kg, 78 mm×77 mm×21 mm and 0.25 W. The sun sensor has low power consumption, large viewing angle and high precision characteristics, which realized the sun sensor the miniaturization and meet the requirements of the micro satellite. Its performance has been verified in orbit.

Keywords: micro satellite, sun sensor, PSD, mask plate.

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Cite this article

Lin Li, Sitong Zhou, Luyang Tan, Dong Wang Sun sensor design and test of a micro satellite. Journal of Measurements in Engineering, Vol. 4, Issue 3, 2016, p. 148‑155.

 

Journal of Measurements in Engineering. September 2016, Volume 4, Issue 3

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