为实现红外探测器星上大范围高分辨率测温从而提升温度控制的稳定性和成像质量, 针对传统测温系统不能兼顾大范围与高分辨率两种特性的缺点, 研究设计了红外探测器星上温度测量系统。通过全温区分档以及档位自动切换功能实现大范围、高分辨率的温度测量。实验结果表明, 该红外探测器星上温度测量系统对星上70~260 K的大范围温度进行测量, 测量分辨率平均为9.1 mK/码, 最高可达7.6 mK/码, 较以往的测温系统分辨率提升了一个量级, 满足红外探测器的星上测温要求。

In order to realize the high temperature resolution measurement for the satellite-borne infrared detector to further realize the stability of temperature control, the imaging quality of a remote sensing infrared camera is improved. Aiming at the shortcoming that the traditional temperature measuring system cannot take into account wide range and high-resolution characteristics, the temperature measurement system for the infrared detector is designed, and wide range and high-resolution temperature measurements are realized by subdividing the whole temperature area and the automatic switching function of the temperature zone. The experimental results show that the infrared detector temperature measurement system can measure the wide range of 70-260 K with measurement resolution as high as 7.6 mK/code compared with the previous temperature measurement system for improved magnitude, and to meet the requirements of satellite-borne infrared detector temperature measurement.