有效亮度温度测量中发射率影响的修正  

Correcting Effective Radiance Temperature Measurement for Emissivity Effect

作　　者：原遵东[1] 邢波[1] 柏成玉[1] 傅承玉 陈桂生[3] 

机构地区：[1]中国计量科学研究院,北京100029 [2]湖北省计量测试技术研究院,湖北武汉430223 [3]中国测试技术研究院,四川成都610021

出　　处：《计量学报》2014年第6期578-582,共5页Acta Metrologica Sinica

摘　　要：经典的短波高温修正模型不适用于中长波红外温度计的发射率修正和不确定度评定。采用有效亮度温度概念，得到了对于温度范围和测温波长具有广泛适用性的发射率影响模型以及具有简明物理含义的微差近似形式，包含了经典亮度温度理论中的发射率影响修正和环境辐射误差修正。定量分析了经典的短波高温修正模型的误差。针对黑体辐射源的不同溯源方法，讨论了辐射温度计校准中的发射率影响修正方法，并给出修正实例。所用方法可用于辐射测温应用、辐射温度计校准和黑体辐射源校准中的发射率和环境影响修正以及辐射源发射率不确定度对校准结果不确定度贡献的计算。The classical correction model with the Wien and ambient-radiation-less approximations is not suitable for emissivity correction and uncertainty evaluation middle and low temperature infrared thermometry. The effective radiance temperature concept is adopted to obtain the emissivity effect model, with wide validity for measured temperature and measuring wavelength and its differential form with obvious physical meanings. The error using the classical correction model is discussed under the middle and low temperature measurements. The emissivity correction methods are described under different blackbody radiator traceable approaches in radiation thermometer calibration, and an example is given. The method discussed is suitable for the emissivity and reflected ambient radiation corrections and associated uncertainties calculations in the applications and calibrations of radiation thermometers and blackbody radiators.

关 键 词：计量学 发射率修正 有效亮度温度 辐射温度计 黑体辐射源 校准 不确定度 

分 类 号：TB942[一般工业技术—计量学]