光学精密工程2009，Vol.17Issue(11)：2665-2671,7.
多姿态变化相机中CCD焦面组件的热设计
Thermal design of CCD focal plane assemblies for attitude-varied space cameras
摘要
Abstract
In order to keep the temperature of CCDs on an attitude varied space camera within a limited range, a thermal control system of the CCD Focal Plane Assembly (CFPA) is designed. Base on the theory of differential thermal expansion between the two materials having different CTE values,a thermal switch as a crucial part in the thermal control system is designed. According to the calculation of the orbit, the obstructive relation of all parts and the characteristics of attitude varying, the scheme of two radiators controlled by a thermal switch is presented, and the thermal design of the CFPA is specified. The performance of the thermal design is simulated by the TMG software. The results indicate that the temperature fluctuation of the CCD is 12.34 ℃ under passivethermalcontrol, whereas it is only 1.73 ℃ under both passivethermalcontrol and activethermalcontrol. Experiments show the thermal control system can meet the need of the mission and the thermal design is efficient and reasonable.关键词
空间相机/CCD焦面组件/热设计/热开关Key words
space camera/ CCD focal plane assembly/ thermal design/ thermal switch分类
航空航天引用本文复制引用
韩冬,吴清文,卢锷,陈立恒,杨成禹..多姿态变化相机中CCD焦面组件的热设计[J].光学精密工程,2009,17(11):2665-2671,7.基金项目
国家重大工程资助项目 （）
国家自然科学基金资助项目(No.60575025) （No.60575025）
