Using spectral distribution of radiance temperature and relative emissivity for determination of the true temperature of opaque materials
- Authors: Rusin S.P.1
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Affiliations:
- Joint Institute for High Temperatures RAS
- Issue: Vol 25, No 1 (2018)
- Pages: 133-144
- Section: Article
- URL: https://journals.rcsi.science/1531-8699/article/view/217340
- DOI: https://doi.org/10.1134/S0869864318010122
- ID: 217340
Cite item
Abstract
A method for determining the thermodynamic (true) temperature of opaque materials by the registered spectrum of thermal radiation under the conditions when we do not know emissivity of a free-radiating body is presented. A special function, which is a product of relative emissivity of tungsten by the radiation wavelength, was used as the input data. The accuracy of results is analyzed. It is shown that when using relative emissivity, the proposed algorithm can be used both within the range of applicability of the Wien approximation and the Planck formula.
About the authors
S. P. Rusin
Joint Institute for High Temperatures RAS
Author for correspondence.
Email: sprusin@mail.ru
Russian Federation, Moscow