常温黑体光谱发射率校准技术研究

doi:10.3969/j.issn.1000-1158.2022.09.09

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Abstract The absolute measurement of blackbody spectral emissivity is a challenging metrology problem.In order to realize the accurate measurement of blackbody spectral emissivity at room temperature, a set of mid-infrared blackbody spectral emissivity measurement device is built based on continuous tunable laser.The MCT detector is driven by a self-designed 10mA constant current source, and the dynamic range of the measurement results ranges from 7.29×104 to 4.32×105, effectively improving the dynamic range of the detection system. The device achieves the high-precision measurement of emissivity, the spectral range covers 7.5~10.6μm, the emissivity measurement value ranging from 0.01 to 0.9999, the optimal uncertainty is 4.0×10-5(k=2).

Key words： metrology blackbody spectral emissivity dynamic range constant current source uncertainty

Received: 08 March 2021 Published: 19 September 2022

PACS:

TB96

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	Articles by authors
	MA Yu-xuan
	FENG Guo-jin

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MA Yu-xuan,FENG Guo-jin. Research on Calibration Technology of Spectral Emissivity of Blackbody at Normal Temperature[J]. Acta Metrologica Sinica, 2022, 43(9): 1161-1165.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2022.09.09 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2022/V43/I9/1161

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