Second-class Standard Platinum and Rhodium 10-Platinum Thermocouple Used as the Reference Standard Radiation Thermometer Calibration Uncertainty Analysis
WU Jia,GUO Shen-hui,CHEN Quan-sen
Qingdao Institute of Measurement Technology, Qingdao, Shandong 266101, China
Abstract：Radiation temperature measurement has the advantages of noncontact and rapid response, is widely used in industrial process control, and the radiation thermometer calibration is the only correct way to understand its technical performance. The uncertainty of the calibration results which using second-class standard platinum and rhodium10-platinum thermocouple supporting blackbody radiation as a reference standard calibration uncertainty work with radiation thermometer, and the uncertainty at 800 ℃ typical point measurement points is evaluated. The final result is U=1.8 ℃,k=2. In addition, the influence that the blackbody radiation emissivity departing 1 on the calibration results is discussed.
2015, Vol. 36 
