Abstract：A special sample heater for the semi-transmittance material was constructed to extend the emissivity measurement ability, the temperature range covered 50~200 ℃ and the spectral range cover 3 to 14μm. A grating monochrometer to realize monochromatic spectrum, chopper to get alternating current signal, a digital signal processor lock-in amplifier in conjunction with HgCdTe detector to measure micro voltage signal. The model to measure the semi-transmittance material emissivity was established. A SiO2 glass sample was selected to study its spectral emissivity in the 8 to 14μm wavelength range at the temperature 80 ℃. The standard uncertainty of the emissivity is 0.08.
臧延哲,董伟,宦克为,王景辉,原遵东. 半透明材料红外光谱发射率测量研究[J]. 计量学报, 2015, 36(6A): 17-19.
ZANG Yan-zhe,DONG Wei,HUAN Ke-wei,WANG Jin-hui,YUAN Zun-dong. The Development of the Infrared Spectral Emissivity Measurement of the Semi-transmittance Material. Acta Metrologica Sinica, 2015, 36(6A): 17-19.
2015, Vol. 36 
