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Proceedings Paper

Temperature measurement and accuracy of bi-colored radiometer applying pseudo graybody approximation
Author(s): Terumi Inagaki; Yoshizo Okamoto; Zuofen Fan; Katashi Kurokawa
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Paper Abstract

It is necessary to obtain a surface radiation temperature that does not include reflection energy, because the influence of reflection energy on measured images of a surface radiation temperature is comparatively large on a metal surface. In general, there are two ways to eliminate reflection energy and to specify a true temperature. One typical method is the analytical method which obtains a true surface temperature after measuring a true emissivity using IR radiometer. Another is based on the bicolored method applying pseudo gray-body approximation, in which a true surface temperature can be acquired after eliminating emissivity on a surface with the aid of radiation energy possessing various detection wavelengths. The surface temperature measurement using bicolored radiometer combined with pseudo gray-body approximation has not been discussed yet. Therefore, in the present study, we will propose and investigate the bicolored temperature measurement based on a power law description of energy for various detection wavelengths. And then its applicability and accuracy on temperature measurement will also be estimated as follows.

Paper Details

Date Published: 21 March 1994
PDF: 12 pages
Proc. SPIE 2245, Thermosense XVI: An International Conference on Thermal Sensing and Imaging Diagnostic Applications, (21 March 1994); doi: 10.1117/12.171177
Show Author Affiliations
Terumi Inagaki, Ibaraki Univ. (Japan)
Yoshizo Okamoto, Ibaraki Univ. (Japan)
Zuofen Fan, Ibaraki Univ. (Japan)
Katashi Kurokawa, NEC San-ei Instrument Ltd. (Japan)


Published in SPIE Proceedings Vol. 2245:
Thermosense XVI: An International Conference on Thermal Sensing and Imaging Diagnostic Applications
John R. Snell, Editor(s)

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