“高分二号”卫星相机热控系统的设计与验证  

Thermal Design and Test for High Resolution Space Camera on GF-2 Satellite

作　　者：赵振明[1] 鲁盼[1] 宋欣阳[1] 

机构地区：[1]北京空间机电研究所,北京100094

出　　处：《航天返回与遥感》2015年第4期34-40,共7页Spacecraft Recovery & Remote Sensing

基　　金：国家重大科技专项工程

摘　　要：为了保证相机在轨成像品质和指向精度,相机光机部件的控温要求需全寿命周期温度稳定性优于±0.3℃。文章根据"高分二号"卫星相机在轨成像需求,详细分析了相机热控设计的重点与难点,并创新性的采用了辐射主动控温措施对相机进行高精度的温度控制。热平衡试验和在轨飞行温度数据表明,相机热控设计合理可行,热控措施能够很好的满足在轨成像时所需温度要求,同时证明了辐射主动控温方法具有很好的控温精度和鲁棒性,在未来空间相机高精度、高稳定性热控设计中具有很好的应用前景。In order to fulfill the image quality and pointing accuracy, a high-precision thermal control requirement within ±0.3 ℃ should be met. Based on the high resolution imaging requirement in orbit of GF-2 space camera, this paper analyzes the emphases and difficulties of thermal control design in detail, and the radiant active thermal control method is adopted for the high precision temperature control. The thermal balance test results and the in-orbit temperature data indicate that the thermal design of the camera is reasonable and feasible, and the thermal control system can satisfies the temperature demands as the camera operating in orbit perfectly. The application on GF-2 camera shows that the radiant active thermal control can provide well temperature control precision and robustness, and has good application prospects.

关 键 词：热控 一体化设计 试验验证 空间相机 “高分二号”卫星 航天遥感 

分 类 号：V443.5[航空宇航科学与技术—飞行器设计]