Using spectral distribution of radiance temperature and relative emissivity for determination of the true temperature of opaque materials
| Autor: | S. P. Rusin |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Nuclear and High Energy Physics
Radiation Materials science Spectral power distribution Opacity 02 engineering and technology 01 natural sciences 010305 fluids & plasmas Computational physics Wavelength 020303 mechanical engineering & transports 0203 mechanical engineering Thermal radiation 0103 physical sciences Radiance Emissivity Wien approximation |
| Zdroj: | Thermophysics and Aeromechanics. 25:133-144 |
| ISSN: | 1531-8699 0869-8643 |
| DOI: | 10.1134/s0869864318010122 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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