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Proceedings Paper

Night vision imaging system design, integration and verification in spacecraft vacuum thermal test
Author(s): Yonghong Shang; Jing Wang; Zhe Gong; Xiyuan Li; Yifei Pei; Tingzhu Bai; Haijing Zhen
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Paper Abstract

The purposes of spacecraft vacuum thermal test are to characterize the thermal control systems of the spacecraft and its component in its cruise configuration and to allow for early retirement of risks associated with mission-specific and novel thermal designs. The orbit heat flux is simulating by infrared lamp, infrared cage or electric heater. As infrared cage and electric heater do not emit visible light, or infrared lamp just emits limited visible light test, ordinary camera could not operate due to low luminous density in test. Moreover, some special instruments such as satellite-borne infrared sensors are sensitive to visible light and it couldn’t compensate light during test. For improving the ability of fine monitoring on spacecraft and exhibition of test progress in condition of ultra-low luminous density, night vision imaging system is designed and integrated by BISEE. System is consist of high-gain image intensifier ICCD camera, assistant luminance system, glare protect system, thermal control system and computer control system. The multi-frame accumulation target detect technology is adopted for high quality image recognition in captive test. Optical system, mechanical system and electrical system are designed and integrated highly adaptable to vacuum environment. Molybdenum/Polyimide thin film electrical heater controls the temperature of ICCD camera. The results of performance validation test shown that system could operate under vacuum thermal environment of 1.33×10-3Pa vacuum degree and 100K shroud temperature in the space environment simulator, and its working temperature is maintains at 5℃ during two-day test. The night vision imaging system could obtain video quality of 60lp/mm resolving power.

Paper Details

Date Published: 5 August 2015
PDF: 8 pages
Proc. SPIE 9622, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology, 96220I (5 August 2015); doi: 10.1117/12.2190815
Show Author Affiliations
Yonghong Shang, Beijing Institute of Spacecraft Environment Engineering (China)
Jing Wang, Beijing Institute of Spacecraft Environment Engineering (China)
Science and Technology on Reliability and Environmental Engineering Lab. (China)
Zhe Gong, Beijing Institute of Spacecraft Environment Engineering (China)
Xiyuan Li, Beijing Institute of Spacecraft Environment Engineering (China)
Yifei Pei, Beijing Institute of Spacecraft Environment Engineering (China)
Tingzhu Bai, Beijing Institute of Technology (China)
Haijing Zhen, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 9622:
2015 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology
Guangming Shi; Xuelong Li; Bormin Huang, Editor(s)

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