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1987•Transactions of the Society of Instrument and Control EngineersOpen access

Standard Blackbody Furnace for the Calibration of Radiation Thermometer

Tetsuo Fujihara, Susumu Hattori, Isao HISHIKARI, Takao Shimizu

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Abstract

A standard blackbody furnace for the calibration of commercially available radiation thermometers has been developed. This furnace has a cavity of chrome plated copper walls with an opening of 60mm in diameter. The furnace is designed so that the temperature of the cavity can be easily estimated by a resistance thermometer. It is shown that the furnace has an accuracy of 1K through the comparison with two fixed point blackbodies when the effective emissivity, the size-of-source effect and the absorption by water vapor of the air are corrected for.

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A standard blackbody furnace for the calibration of commercially available radiation thermometers has been developed. This furnace has a cavity of chrome plated copper walls with an opening of 60mm in diameter. The furnace is designed so that the temperature of the cavity can be easily estimated by a resistance thermometer. It is shown that the furnace has an accuracy of 1K through the comparison with two fixed point blackbodies when the effective emissivity, the size-of-source effect and the absorption by water vapor of the air are corrected for.

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Available abstract

A standard blackbody furnace for the calibration of commercially available radiation thermometers has been developed. This furnace has a cavity of chrome plated copper walls with an opening of 60mm in diameter. The furnace is designed so that the temperature of the cavity can be easily estimated by a resistance thermometer. It is shown that the furnace has an accuracy of 1K through the comparison with two fixed point blackbodies when the effective emissivity, the size-of-source effect and the absorption by water vapor of the air are corrected for.

Key concepts: Emissivity, Black-body radiation, Thermometer, Calibration, Infrared thermometer, Vacuum furnace, Radiation, Materials science

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