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对空间相机大功率CCD器件进行了热设计以解决其散热问题,为了验证热设计的合理性进行了CCD焦面组件的热试验。首先,介绍了以传导为主要散热措施的CCD器件热设计方案,CCD器件的热量主要通过热管传递到冷源;然后,针对整个焦面组件进行了试验规划,特别对模拟冷板进行了专门设计;最后,在真空环境下进行了综合试验。试验结果显示,功耗为10W的CCD器件连续工作70min,在12℃冷源的情况下,能够控制焦平面器件的温度<35℃。该试验验证了CCD焦面组件热设计的合理性,并为焦面组件热分析计算模型修正提供了依据。
Thermal design of space camera high power CCD device was carried out to solve its heat dissipation problem. In order to verify the rationality of thermal design, the thermal test of CCD focal plane module was carried out. First of all, the thermal design scheme of CCD device with conduction as the main heat dissipation measure is introduced. The heat of the CCD device is mainly transmitted to the cold source through the heat pipe. Then, the experimental planning is carried out for the whole focal plane assembly, specially designed for the simulated cold plate Finally, a comprehensive test was carried out in a vacuum environment. Experimental results show that the power consumption of 10W CCD device continuous operation 70min, 12 ℃ cold source, the ability to control the focal plane temperature of the device <35 ℃. The experiment verifies the rationality of the thermal design of the CCD focal plane module and provides the basis for the thermal model of the focal plane module.