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| The Experiment Study for SSE on Calibration of Infrared Thermometer under Lower Temperature Condition |
| ZHAO Quan-qin1,LI Wen-jun1,SUN Jian1,YU Shi-fan2,ZHANG Long-fei1,CUI Chao2 |
1.China Jiliang University, Hangzhou, Zhejiang 310018, China
2. Zhejiang Province Institute of Metrology, Hangzhou, Zhejiang 310013, China |
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Abstract The phenomenon of size-of-source effect (SSE) is discussed and the coefficient of SSE is used for estimating the SSE property of the infrared thermometer. The experiment apparatus used for measuring SSE under lower temperatures condition is described, and several types of infrared thermometers are applied to the measurements of SSE. The experiment results indicate that the influence of SSE may be not considered at the diameters of the diaphragm hole being more than 40mm. This conclusion is suitable to the most industrial infrared thermometers.
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2012, Vol. 33 
