溯源于低温绝对辐射计的太阳光谱辐照度仪定标方法研究  

Calibrating method traced to cryogenic absolute radiometer for solar irradiance spectroradiometer

作　　者：张艳娜[1] 郑小兵[1] 李新[1] 韦玮 庞伟伟[1] 

机构地区：[1]中国科学院安徽光学精密机械研究所中国科学院定标与表征重点实验室,安徽合肥230031

出　　处：《应用光学》2015年第4期572-579,共8页Journal of Applied Optics

基　　金：国家973计划(2010CB950801);江苏省现代光学技术重点实验室开放课题(KJS1401)资助项目

摘　　要：为了提高太阳直射光谱辐照度的观测精度,对使用棱镜分光的太阳光谱辐照度仪,在可见-近红外波段开展了基于标准探测器的辐射定标方法研究。建立了可调谐激光器-积分球的辐照度定标装置,以溯源于低温绝对辐射计的标准辐照度探测器作为传递基准,通过替代法得到照度仪在可见-近红外10个波段的绝对光谱辐照度响应度,分析得到的合成定标不确定度优于0.95%。与溯源于中国计量院金点黑体的标准灯定标法进行了比对实验,两者的偏差在4.67%的范围内,证明了此辐射标准传递方法的合理性。To improve the observation precision of solar spectrum,a calibration method based on standard detector for a novel prism dispersion solar irradiance spectroradiometer was developed in the visible-near infrared bands.With the standard irradiance detector,and the uniform irradiance source acquired from the tunable laser-illuminated integrating sphere,the spectral irradiance responsibility of the spectroradiometer was traced to the cryogenic absolute radiometer in the 10 bands.The uncertainty of this method is better than 0.95%.The deviations with the standard lamp calibratin method traced to the blackbody are less than 4.67%,which validate the rationality of the radiometer standard transfer method for solar irradiance spectroradiometer.

关 键 词：辐照度 低温绝对辐射计 标准探测器 太阳光谱辐照度仪 标准灯 

分 类 号：O432.2[机械工程—光学工程]