基于绝对辐亮度计定标的积分球紫外光谱辐射特性研究  

Research of UV Spectral Radiance Characteristics of the Integrating Sphere Based on Calibration by the Absolute Radiance Radiometer

作　　者：杨小虎[1,2] 王淑荣[1] 曲艺[1] 黄煜[1] 林冠宇[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院研究生院,北京100049

出　　处：《中国激光》2011年第10期192-197,共6页Chinese Journal of Lasers

基　　金：国家自然科学基金(41074126);吉林省青年科研基金(20090118)资助课题

摘　　要：针对积分球开口光谱辐射特性测量的复杂性及紫外波段标准光源不确定度大的缺点,构建了一种基于紫外标准探测器的高精度绝对辐亮度计。用所构建的绝对辐亮度计,以3个波长为例,标定积分球开口光谱辐亮度,修正了250~400 nm波段积分球开口光谱辐亮度曲线。同时,利用该绝对辐亮度计对积分球输出稳定性、积分球开口均匀性以及朗伯余弦特性进行了全面测试。积分球开口3个波长280,313和352 nm处光谱辐亮度定标合成标准不确定度分别为3.2%,3.0%和3.0%,积分球输出稳定性、开口均匀性以及朗伯余弦特性3个波长处合成标准不确定度分别为1.7%,1.6%和1.6%。不确定度分析表明用绝对辐亮度计研究积分球光谱辐射特性与传统的积分球光谱辐射特性研究相比方便可行且精度更高。A high precision absolute radiance radiometer based on the ultroviolet（UV） standard detector is made up according to the complexity of the normal measurement of the spectral radiometric characteristics of the integrating sphere and the disadvantage of the huge uncertainty of the standard lamp in UV band.Calibration in three wavelengths is done so as to correct the curve of the aperture′s spectral radiance of the integrating sphere in 250~400 nm bands.Also the stability of the output,the uniformity of the aperture and the Lambert′s cosine characteristic of the integrating sphere are measured.The combined standard uncertainty in 280,313 and 352 nm is 3.2%,3.0% and 3.0% for the spectral radiance calibration and 1.7%,1.6% and 1.6% for the stability of the output、the uniformity of the aperture and the Lambert′s cosine characteristic of the integrating sphere.Uncertainty analysis shows that research based on the absolute radiance radiometer is convenient,feasibility and has a higher precision in contrast to the traditional research of spectral radiance characteristics.

关 键 词：测量 辐射定标 绝对辐亮度计 光谱辐射特性 辐亮度定标 

分 类 号：TP706[自动化与计算机技术—检测技术与自动化装置]