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CALCULATION OF EFFECTIVE EMISSIVITY OF DOUBLE CAVITIES BLACKBODY

Haijun Gong

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Abstract

The calculation method of normal effective emissivity of double cavities blackbody at isothermic and unisothermic states is obtained by means of theoretical derivation. The effective emissivity of Double Cavities High Precision Extended Source Blackbody used in the infrared radiation calibration of the FY-1 Meteorological Satellite is calculated. The effect of temperature difference on the effective emissivity at unisothermic state is given quantitatively.

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What this paper is about

The calculation method of normal effective emissivity of double cavities blackbody at isothermic and unisothermic states is obtained by means of theoretical derivation. The effective emissivity of Double Cavities High Precision Extended Source Blackbody used in the infrared radiation calibration of the FY-1 Meteorological Satellite is calculated. The effect of temperature difference on the effective emissivity at unisothermic state is given quantitatively.

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Available abstract

The calculation method of normal effective emissivity of double cavities blackbody at isothermic and unisothermic states is obtained by means of theoretical derivation. The effective emissivity of Double Cavities High Precision Extended Source Blackbody used in the infrared radiation calibration of the FY-1 Meteorological Satellite is calculated. The effect of temperature difference on the effective emissivity at unisothermic state is given quantitatively.

Key concepts: Emissivity, Black-body radiation, Radiation, Infrared, Low emissivity, Physics, Satellite, Calibration

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