DocumentCode :
3356776
Title :
Heat flux analysis of space camera with thermal door
Author :
Dou Qiang ; Li Jindong ; Pan Zengfu
Author_Institution :
R&D Centre, DFH Satellite Co. Ltd., Beijing, China
Volume :
2
fYear :
2011
fDate :
12-14 Aug. 2011
Firstpage :
804
Lastpage :
807
Abstract :
Thermal stability is an important parameter which can affect the optical ability of large aperture space camera. Most of space cameras with large aperture and high resolution need high thermal stability, which means the temperature gradient should be no more than 2°C. This situation causes that the thermal control system should increase the design criteria to meet the challenge. Space heat flux including vertical incident solar rays, infrared radiation from earth and solar rays reflected by earth are the major factors which affect the temperature flied of the camera. The space heat flux of some agility remote sensing satellite changes within a wide-range. In this paper comparison of using thermal door or not in such camera is introduced. The heat flux of the space camera is analyzed and the effect of thermal control system is described.
Keywords :
cameras; geophysical equipment; remote sensing; thermal stability; heat flux analysis; infrared radiation; large aperture space camera; optical ability; radiation angle factor; remote sensing satellite changes; space heat flux; temperature gradient; thermal control system; thermal door; thermal stability; vertical incident solar rays; Aerospace electronics; Cameras; Earth; Mathematical model; Satellites; Space heating; Thermal stability; radiation angle factor; space camera; space heat flux; thermal door;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang, China
Print_ISBN :
978-1-61284-087-1
Type :
conf
DOI :
10.1109/EMEIT.2011.6023216
Filename :
6023216
Link To Document :
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