Method of measuring the radiation power of a material and the corresponding blackbody model to determine its normal emissivity

Kachalov, V.V., Mendeleev, V.Y.

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Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Менделеев В.Я., Качалов В.В. Методика измерения мощности излучения исследуемого материала и модели абсолютно черного тела для определения нормальной излучательной способности материала // Оптический журнал. 2020. Т. 87. № 1. С. 77–80. http://doi.org/10.17586/1023-5086-2020-87-01-77-80

Mendeleev V.Ya., Kachalov V.V. Method of measuring the radiation power of a material and the corresponding blackbody model to determine its normal emissivity [in Russian] // Opticheskii Zhurnal. 2020. V. 87. № 1. P. 77–80. http://doi.org/10.17586/1023-5086-2020-87-01-77-80

For citation (Journal of Optical Technology):

V. Ya. Mendeleev and V. V. Kachalov, "Method of measuring the radiation power of a material and the corresponding blackbody model to determine its normal emissivity," Journal of Optical Technology. 87(1), 63-65 (2020). https://doi.org/10.1364/JOT.87.000063

Abstract:

When measuring the normal emissivity of materials, it is assumed that the radiation flux density on the surface of the test material and in the blackbody model for the corresponding surface is uniformly distributed. However, because of the design features of the heaters of the test material and blackbody model, this assumption is not always valid. This article proposes a methodology for measuring the radiation power of the surface of a test material and the corresponding blackbody model, exhibiting a uniform radiation flux density in the surface central region. The feasibility of measuring the radiation power of a surface with a uniform radiation flux density was experimentally confirmed on an alumina sample at a temperature of 1195 K.

Keywords:

emissivity, radiation flux density, radiation power, emitting surface area

Acknowledgements:

The authors are grateful to V. V. Pilipenko and V. A. Mozdykov for their help in preparing the experimental setup.

OCIS codes: 120.5630, 120.4640

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