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Proceedings Paper

Contactless measurement of the spectral emissivity and temperature of surfaces with a Fourier transform infrared spectrometer
Author(s): Erwin Lindermeir; Volker Tank; Peter Haschberger
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Paper Abstract

A method for the measurement of the spectral emissivity and temperature of a surface is presented. The spectrum of the infrared radiation of a heated surface is measured by means of a Fourier transform infrared spectrometer. To obtain emission spectra in units of spectral radiance a special calibration procedure is described which uses three black bodies as reference sources thus eliminating the need to measure the black bodies' surface temperatures. A theoretical emission spectrum of the investigated surface's radiance is fitted to the calibrated measurement resulting in (in the Gaussian sense) optimal values of spectral emissivity and temperature of the surface.

Paper Details

Date Published: 1 April 1992
PDF: 11 pages
Proc. SPIE 1682, Thermosense XIV: An Intl Conf on Thermal Sensing and Imaging Diagnostic Applications, (1 April 1992); doi: 10.1117/12.58553
Show Author Affiliations
Erwin Lindermeir, DLR-Oberpfaffenhofen and Technische Univ. Muenchen (Germany)
Volker Tank, DLR-Oberpfaffenhofen (Germany)
Peter Haschberger, DLR-Oberpfaffenhofen and Technische Univ. Muenchen (Germany)


Published in SPIE Proceedings Vol. 1682:
Thermosense XIV: An Intl Conf on Thermal Sensing and Imaging Diagnostic Applications
Jan K. Eklund, Editor(s)

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