宽动态范围红外积分球辐射源的优化设计与性能测试(特邀)  

Design optimization and performance test of infrared integrating sphere radiation source with wide dynamic range(Invited)

作　　者：黄思佳 袁银麟[3,4] 翟文超[3,4] 康晴 翁建文[3,4] 李越 孟凡刚[3,4] 郑小兵 雷正刚 Huang Sijia;Yuan Yinlin;Zhai Wenchao;Kang Qing;Weng Jianwen;Li Yue;Meng Fangang;Zheng Xiaobing;Lei Zhenggang(School of Environmental Science and Optoelectronic Technology,University of Science and Technology of China,Hefei 230026,China;Kunming Institute of Physics,Kunming 650223,China;Key Laboratory of Optical Calibration and Characterization,Chinese Academy of Sciences,Hefei 230031,China;Hefei Institutes of Physical Science,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China)

机构地区：[1]中国科学技术大学环境科学与光电技术学院,安徽合肥230026 [2]昆明物理研究所,云南昆明650223 [3]中国科学院通用光学定标与表征技术重点实验室,安徽合肥230031 [4]中国科学院合肥物质科学研究院安徽光学精密机械研究所,安徽合肥230031

出　　处：《红外与激光工程》2021年第10期163-171,共9页Infrared and Laser Engineering

基　　金：国家重点研发计划(2018YFB0504802);国家自然科学基金(41805019)。

摘　　要：为满足红外遥感器高精度等效噪声光谱辐亮度的定标要求,在原有的设计基础上改进了红外积分球辐射源研制制造工艺,满足真空低温使用要求。该积分球辐射源采用8组碳纤维石英电热管作为红外辐射介质,实现工作波段覆盖3~15μm,可调辐射动态范围提升1倍。设计了辐射定标与测量光路,通过比对测量标准腔式黑体辐射源,实现红外积分球辐射源真空低温条件下的辐射定标。定标结果表明:红外积分球辐射源出光口法线Ф200 mm范围内的面均匀性为99.75%,±10°范围内的角度均匀性为99.81%,非稳定性为0.05%。实现了红外积分球辐射源光谱辐亮度输出等色温近线性可调功能,5μm和10μm辐亮度可调范围分别达到12.8μW/(cm^(2)·sr·nm)和1.6μW/(cm^(2)·sr·nm)。In order to meet the requirements of high-precision Noise Equivalent Spectral Radiance calibration of infrared remote sensors,the development and manufacturing process of the infrared integrating sphere radiation source were improved on the basis of the original design to meet the vacuum cryogenic use requirements.The integrating sphere radiation source used 8 sets of carbon fiber quartz electric heating tubes as the infrared radiation medium to achieve a working band coverage of 3-15μm,and the adjustable radiation dynamic range was doubled.The radiation calibration reflective light path was designed,and the standard cavity blackbody radiation source was compared and measured to realize the radiation calibration of the infrared integrating sphere radiation source under vacuum and low temperature conditions.The calibration results show that the uniformity of the surface within the normalФ200 mm of the infrared integrating sphere radiation source is 99.75%,the angular uniformity within±10°is 99.81%,and the instability is 0.05%.It is the realization of the infrared integrating sphere radiation source spectral radiance output and color temperature near-linear adjustable function,5μm and 10μm radiance adjustable range are up to 12.8 and 1.6μW/(cm^(2)·sr·nm).

关 键 词：遥感器 红外 积分球 辐射源 辐射定标 

分 类 号：O432.1[机械工程—光学工程]