光学学报, 2009, 29 (s1): 361, 网络出版: 2009-06-25  

非制冷红外焦平面组件温控装置设计

Design of Temperature Controlling Device for Uncooled Infrared Focal Plane Array Assembly
作者单位
1 中国科学院上海技术物理研究所 传感技术国家重点实验室, 上海 200083
2 中国科学院研究生院, 北京 100039
摘要
非制冷红外焦平面组件是功率器件。红外焦平面组件的温度会随着工作时间的增加而变化, 温度的变化直接影响红外焦平面组件的性能稳定性。为了稳定非制冷红外焦平面组件的温度,设计了一种基于比例积分控制(PI control)的制作简单调试便捷的温度控制装置, 在印刷电路(PCB)板上实现了温度的监测与控制, 预设温度可以根据标定对照表直接在面板上设定。该系统由热电制冷器(TEC), PI控制电路, 铂电阻(Pt100)温度传感器组成, 能够将焦平面阵列的温度稳定控制在25 ℃~15 ℃范围, 稳态误差小, 控制精度达到±0.1 ℃。可以保证非制冷红外焦平面组件在室温下稳定工作, 不会引进额外噪声。
Abstract
Uncooled infrared focal plane array (IR-FPA) assembly is power device. The temperature of uncooled IR-FPA assembly will be risen up along with working time, which directly affect the performance stability of the uncooled IR-FPA assembly. A design based on propertional integral (PI) control which is composed of thermo-electric cooler (TEC), PI controller, Pt-100 temperature sensor is capable of measuring and controlling temperature, and the temperature controlling circuit can keep the temperature change of the uncooled IR-FPA detector between 25 ℃~15 ℃. The precision of controlling is±0.1 ℃, so that the temperature controlling system based on PI control can ensure the uncooled focal plane array detector work in the temperature of high stabilization and precision without noise in addition.
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张伟, 陈新禹, 方家熊. 非制冷红外焦平面组件温控装置设计[J]. 光学学报, 2009, 29(s1): 361. Zhang Wei, Chen Xinyu, Fang Jiaxiong. Design of Temperature Controlling Device for Uncooled Infrared Focal Plane Array Assembly[J]. Acta Optica Sinica, 2009, 29(s1): 361.

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