Gershun管光谱辐射计设计与性能检测  

Design and Performance Test of Gershun Tube Spectral Radiometer

作　　者：王晓旭[1,2] 李志刚[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]中国科学院大学,北京100049

出　　处：《光学学报》2017年第6期109-116,共8页Acta Optica Sinica

基　　金：国家自然科学基金(61378063)

摘　　要：为满足地面/空间辐射定标和太阳/大气遥感测量的应用需求,开发了一种基于Gershun管(光阑筒式结构)的高精度光谱辐射计。介绍了Gershun管光谱辐射计的设计,对其探测器光谱响应度、空间响应均匀性、角度响应特性和视场内外辐射响应特性进行了测试,将基于探测器标准的Gershun管光谱辐射计与基于光谱辐射光源标准的Gershun管光谱辐射计进行了比对,并分析了其标准不确定度范围。实验表明,Gershun管光谱辐射计的光谱响应度重复性为0.3%,区域响应度均匀性为0.3%,角度响应与余弦分布一致性为0.2%,视场外辐射抑制能力为2.1×10^(-4);Gershun管光谱辐射计与光谱辐射光源标准比对的标准不确定度为2.83%,实验测试结果与理论结果的一致性为0.17%。所设计的Gershun管光谱辐射计可以满足应用需求。To meet the application requirements of terrestrial/space radiometric calibration and solar/atmospheric remote sensing measurement,a high precision spectral radiometer based on Gershun tube is developed.A design for Gershun tube spectral radiometer is introduced,and the spectral responsivity,spatial response uniformity,angular response property and inside and outside field-of-view radiation response characteristic of the Gershun tube spectral radiometer are tested.The Gershun tube spectral radiometers based on detector standard and spectral irradiation source standard are compared,and the standard uncertainty range is analyzed.Experimental results show that the spectral response repeatability of the Gershun tube spectral radiometer is 0.3%,the regional responsivity uniformity is 0.3%,the consistency of angular response and expected cosine distribution is 0.2%,and the radiation suppression ability outside field-of-view is 2.1×10^-4.Standard uncertainty of comparison between Gershun tube radiometer and spectral irradiation source standard is 2.83%,and the consistency of experimental result and theoretical result is 0.17%.The designed Gershun tube spectral radiometer can meet application requirements.

关 键 词：测量 辐射计 辐射定标 Gershun管光谱辐射计 不确定度 

分 类 号：O432.1[机械工程—光学工程] TH744[理学—光学]