中国空间科学技术

中国空间科学技术

• •    

影响CCD相机温度分布的因素分析

李国强,贾宏,刘强   

  1. 北京空间飞行器总体设计部,北京空间飞行器总体设计部,北京空间飞行器总体设计部 北京 100086 ,北京 100086 ,北京 100086
  • 发布日期:2001-10-25

Analysis for Some Factors Affecting the Temperature Distribution of a CCD Camera

Li Guoqiang Jia Hong Liu Qiang (Beijing Institute of Spacecraft System Engineering,Beijing 100086)   

  • Online:2001-10-25

被引次数

43

摘要： 从保障卫星长寿命、高可靠性的角度出发，CCD相机的温 度水平和温度梯度均应严格控制。根据中国地球遥感卫星CCD相机热分析结果，对一些影响 相机温度分布的因素进行了简要分析，并给出了热设计改进措施。这几个因素分别是：主动 控温回路布置方式、多层隔热材料漏热、瞬态及稳态方法、卫星运行季节和材料性能变化。

关键词: CCD摄影机, 温度分布

Abstract: In order to maintain the long life and high reliability of satellites,suitable temperature range and relative small temperature gradient between each component of a CCD camera must be controlled accurately.By therma l analysis for the CCD camera,some factors affecting the temperature distribution of the camera have been analyzed.The abovementioned factors include:thermal co n trolling mode,heat leak from the multilayer insulations (MLI),transient and stea dy numeric method,the flying season of the satellite and the performace degradat ion of thermal material. Subject Term Charge coupled device camera Temperature distribution Thermal analysis