摘要
小型空间可见光相机的电子学、光学和机械器件高度集成于狭小空间,需要主动热控进行温度控制。分析了相机的散热特点,采用集总参数法建立了简化的热阻模型,结合DOE设计方法与理论分析方法建立了主动热控功耗与散热面、遮光罩温度之间的关系式,用于主动热控方案的预设计。确定了相机的主动热控电加热功耗,指导主动热控电路的位置布置。最后进行了详细模型的热仿真,并结合热平衡试验进行了验证。热仿真热平衡试验结果表明:本文的快速优化方法合理可行和最终主动热控方案满足热设计指标要求。
The small-size space CMOS camera integrates the electrical, optical and mechanical components within a limited space. Active thermal control is needed to guarantee the normal operation in outer space orbit. The characteristic of camera＇s heat radiation was analyzed. A thermal resistance network model was proposed by lumped parameter method. And DOE method was used to build an equation between active thermal control power, radiator＇s temperature and lens baffle＇s temperature. The equation was used to pre-design the active thermal control scheme. And a proper active thermal control power, target temperature of radiator and lens baffle were decided. The position of active thermal control circuit has also been determined. A detailed thermal simulation and thermal test were conducted to validate the active thermal control solution and the active thermal control quick optimization method.
出处
《红外技术》
CSCD
北大核心
2013年第3期166-172,共7页
Infrared Technology
基金
国家863计划项目
关键词
小型空间可见光相机
主动热控
热阻网络
DOE
热设计
热平衡试验
small size space CMOS camera, active thermal control, thermal resistance network, DOE, thermal design, thermal balance test
