Accuracy Advancement of Non-Contact Temperature Measurement with Differential Technology

Generally, accuracy of non-contact temperature measurement is not high because of the effects of ambient temperature and surface thermal emissivity of measured target. Differential measurement technology is measuring both temperature of a reference target and a measured target with the same temperat...

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Bibliographic Details
Published in:Journal of physics. Conference series 2006-10, Vol.48 (1), p.720-724
Main Authors: Xu, K B, Wang, J C, Gao, L L, Li, X B
Format: Article
Language:English
Subjects:
Accuracy
Ambient temperature
Differential thermal analysis
Emissivity
Error analysis
Error correction
Infrared radiation
Physics
Temperature measurement
Thermometers
Working conditions
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Summary:Generally, accuracy of non-contact temperature measurement is not high because of the effects of ambient temperature and surface thermal emissivity of measured target. Differential measurement technology is measuring both temperature of a reference target and a measured target with the same temperature measurement device. As ambient temperature, rays and surface thermal emissivity of heating unit have nearly the same effects on two targets, actual measurement error of reference temperature actual value can be used to correct temperature error of measured target. When working environment of reference target and measured target are basically the same, differential measurement can eliminate most measurement error caused by environmental factors. This method is mainly used in non-contact temperature measurement requiring high accuracy.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/48/1/136