通道式辐射计的相对光谱响应率定标  

Calibration for Relative Spectral Responsivity of Multichannel Radiometer

作　　者：周磊[1] 吴浩宇[1] 郑小兵[1] 

机构地区：[1]中国科学院安徽光学精密机械研究所,安徽合肥230031

出　　处：《计量学报》2007年第1期37-41,共5页Acta Metrologica Sinica

摘　　要：为配合气象卫星的在轨辐射定标,利用自行设计的宽光谱辐射定标系统配合高精度陷阱探测器,采用光谱替代法为试验中所需的可见、近红外辐射计和近红外、短波红外辐射计进行了高精度相对光谱响应率定标。详细叙述和分析了定标过程以及影响测量结果的不确定度源,其最终合成不确定度为3.21×10-3,满足了定标精度要求。For the meteorological satellite radiometric calibration, a self-designed broadband calibration system and a high accurate trap detector, and the substitution method are used for accurately calibrating the relative spectral response of VIS- NIR and NIR- SIR radiometers. The calibration process and uncertainty sources that affect the result of measurements are described and analysed. The combined standard uncertainty of the calibration is up to 3.21 × 10^-3, which can meet the precision requirements of measurement.

关 键 词：计量学 相对光谱响应率 双单色仪 通道式辐射计 陷阱探测器 替代法 

分 类 号：TB96[机械工程—光学工程]