Abstract：The measurement of emissivity distribution characteristics is an important basis for evaluating the radiation uniformity of large-aperture radiation sources, but the related research is relatively scarce at present. Therefore, a measurement system for the emissivity distribution characteristics of the infrared radiation source is designed and built based on complete hemispherical laser integrated reflection scheme. The performance of the measurement system is studied, the stability of the laser light source subsystem is evaluated, and the experiment of measuring the emissivity distribution characteristics of surface radiation source is carried out at 3 W laser power. The results show that the measurement system has good stability. Taking the surface of standard gold plate as the research object, the repeatability of multiple measurement results is 0.30%; The experimental measurement of emissivity distribution of carbon based surface radiation source is carried out, and the distribution cloud map of emissivity of surface radiation source is obtained, the uniformity of emissivity is 98.1%.
刘光昱,宦克为,安保林,董伟,赵云龙,宋旭尧,原遵东. 基于积分球反射法的面辐射源发射率分布测量研究[J]. 计量学报, 2023, 44(4): 503-507.
LIU Guang-yu,HUAN Ke-wei,AN Bao-lin,DONG Wei,ZHAO Yun-long,SONG Xu-yao,YUAN Zun-dong. Study on the Measurement of the Emissivity Distribution of Flat PlateRadiation Source Based on the Integrating Sphere Reflection Method. Acta Metrologica Sinica, 2023, 44(4): 503-507.
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2023, Vol. 44 
