Metrological problems that arise in measurements of the temperature of physical objects by means of pyrometers, where the emissivity of the objects is different from 1 and may vary with a variation in the wavelength, are considered. Factors are established and methods of eliminating inaccuracies in the radiation coefficient of energy-controlled pyrometers are presented. Violations in the traceability of pyrometers with built-in correction units relative to the state primary standard of the unit of temperature are discussed and recommendations for recovering traceability are presented.
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Translated from Metrologiya, No. 1, pp. 42–57, January–March, 2018.
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Frunze, A.V. Metrological Problems of Modern Energy-Controlled Pyrometry. Meas Tech 61, 271–277 (2018). https://doi.org/10.1007/s11018-018-1420-7
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DOI: https://doi.org/10.1007/s11018-018-1420-7