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Teplofizika vysokikh temperatur, 2011, Volume 49, Issue 5, Pages 757–762
(Mi tvt540)
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This article is cited in 3 scientific papers (total in 3 papers)
Heat and Mass Transfer and Physical Gasdynamics
Spectral Pyrometry of the Objects with Hot Spots
G. M. Batanova, N. K. Berezhetskayaa, V. A. Kop'eva, I. A. Kossyia, A. N. Magunovb a A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow
b National Research Institute for Perspective Materials and Technologies
Abstract:
Optical emission spectra of microwave discharges at the powder mixture surface are experimentally
recorded, indicating spatial temperature nonuniformity the within the field of vision. Within the field of vision, the maximal and minimal temperature values calculated from the continuous spectrum (wavelength range $380--620$ nm) differ by $20--25\%$. Modeling of the integral emission spectra of a heated surface with hot spots is performed. Spectral pyrometry of the objects with nonuniform temperature, when used within a narrow spectral interval, gives no possbility of determining the exact nature of the measured temperature because the temperature calculated from this spectrum may differ substantially from both averaged and maximal values. To determine the averaged and maximal
temperature, it is necessary to significantly widen the recorded spectral interval.
Received: 11.03.2010
Citation:
G. M. Batanov, N. K. Berezhetskaya, V. A. Kop'ev, I. A. Kossyi, A. N. Magunov, “Spectral Pyrometry of the Objects with Hot Spots”, TVT, 49:5 (2011), 757–762; High Temperature, 49:5 (2011), 731–735
Linking options:
https://www.mathnet.ru/eng/tvt540 https://www.mathnet.ru/eng/tvt/v49/i5/p757
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Abstract page: | 235 | Full-text PDF : | 105 | References: | 62 |
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