Study in measuring the true surface temperature and emissivity of a heated object by means of a thermosensor

Zhi Xie; Guanghui Shan; Kuiming Gao

doi:10.1117/12.21856

1 September 1990 Study in measuring the true surface temperature and emissivity of a heated object by means of a thermosensor

Zhi Xie, Guanghui Shan, Kuiming Gao

Author Affiliations +

Proceedings Volume 1311, Characterization, Propagation, and Simulation of Infrared Scenes; (1990) https://doi.org/10.1117/12.21856
Event: 1990 Technical Symposium on Optics, Electro-Optics, and Sensors, 1990, Orlando, FL, United States

Abstract

In this paper, double surface pyrometer, one with a preceded reflector and another with a preceded absober, are used to measure on-line true temperatures and emissivities of the oxided steelplate and a kind of paint. The main error in the measurement of emissivities comes from the temperature increase of the thermosensor with the preceded absober.When the temperature of the absorber is 40°C and the temperature of the measured surface is above 400°C, the Systematic relative error measuring emissivity is less 5%.

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Zhi Xie, Guanghui Shan, and Kuiming Gao "Study in measuring the true surface temperature and emissivity of a heated object by means of a thermosensor", Proc. SPIE 1311, Characterization, Propagation, and Simulation of Infrared Scenes, (1 September 1990); https://doi.org/10.1117/12.21856

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