摘要
黑体腔口孔径的不同往往会影响黑体的辐射能力,因此考虑黑体的辐射密度与光阑孔径的关系具有十分重要的现实意义和研究价值。采用碲镉汞探测器阵列对固定距离和温度不同光阑孔径的黑体辐射源进行探测,选用一组阵列探测器数据作对比,分析整理测量结果并进行数据拟合。实验结果表明,黑体辐射源在所选的探测范围内均匀性较好。随着光阑孔径的减小,黑体辐射密度呈现增加趋势。在固定探测距离时,黑体辐射源的辐射密度随着光阑孔径的增加而减小,减小趋势逐渐减缓,满足高斯分布特性,采用指数拟合对理论模型进行修正,所得数值与实测值的误差小于3%,具有较好的一致性。
The radiation ability of blackbody is often affected by the different aperture of blackbody cavity. Therefore,it is of great practical significance and research value to take into account the relationship between the blackbody radiation density and the diaphragm aperture. The HgCdTe detector array is used to detect the blackbody radiation sources with different apertures at fixed distances and different temperatures,and then a group of array detector data are selected to make comparison,so as to analyze the measured results and implement the data fitting. The experimental results show that the blackbody radiation source has a good uniformity in the selected detection range. The blackbody radiation density increases as the diaphragm aperture decreases. When the detection distance is constant,the radiation density of the blackbody radiation source decreases as the diaphragm aperture increases,and the decreasing trend slows down gradually,which meet with the characteristics of the Gauss distribution. The exponential fitting is used to modify the theoretical model. The error between the value obtained with the model and the measured value is less than 3%,which is of good consistency.
作者
安晏阳
王振东
喻璐璐
管雯璐
王珍博
靖旭
秦来安
谭逢富
侯再红
AN Yanyang;WANG Zhendong;YU Lulu;GUAN Wenlu;WANG Zhenbo;JING Xu;QIN Laian;TAN Fengfu;HOU Zaihong(Atmospheric Optics Center,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031 China;University of Science and Technology of China,Hefei 230026,China;State Key Laboratory of Pulsed Power Laser Technology,Hefei 230031,China)
出处
《现代电子技术》
北大核心
2020年第17期134-136,140,共4页
Modern Electronics Technique
基金
国家自然科学基金项目(41405014)。
关键词
黑体辐射源
温度均匀性
碲镉汞探测器
探测器阵列
光阑孔径
辐射密度
blackbody radiation source
temperature uniformity
HgCdTe detector
detector array
diaphragm aperture
radiation density
