在中低温条件下环境辐射对光谱发射率测量的影响  

Effect on Environment Radiation in Measurements for Spectral Emissivity at Medium and Low Temperatures

作　　者：李希明[1] 李文军[1] 顾喆涵 周恩[1] 章龙飞[1] 

机构地区：[1]中国计量学院,浙江杭州310018

出　　处：《计量学报》2014年第1期10-12,共3页Acta Metrologica Sinica

摘　　要：讨论了有效光谱发射率和有效亮度温度的概念。介绍了光谱发射率的测量方法及测量装置。在考虑到环境辐射的情况下，给出了光谱发射率的计算方程，指出中低温条件下的光谱发射率测量必须考虑环境辐射的影响，否则会出现较大的误差。Both effective spectral emissivity and radiance temperature are discussed. The measuring methods and apparatus of spectral emissivity are introduced. The calculation equation for spectral emissivity is given, which has a concern with the environment radiation. It indicates that the effect of environment radiation should be taken into account on the measurements for spectral emissivity at medium and low temperatures, otherwise a significant measuring error will be introduced.

关 键 词：计量学 有效光谱发射率 有效亮度温度 环境辐射 黑体空腔 

分 类 号：TB942[一般工业技术—计量学]