用于低浓度NO<sub>2</sub>精确测量的傅里叶变换红外光谱系统研究

doi:10.3969/j.issn.1000-1158.2019.03.27

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Abstract A FTIR system for the accurate measurement of low concentration NO₂ was developed. By using the proposed syestem, the concentration of NO₂ in the different standard gas were measured; the standard gas were obtained by dynamic dilution method. It was indicated that the system has a good linear response, thus the calibration equation of the system was established. The comparison test showed that the system is accurate and reliable. The stability study showed that the system has good long-term stability. By using dynamic dilution method based on mass flow controllers, the standard gases with different concentration were obtained. This system has a calibration curve with good linearity. The comparison test shows that the system is accurate and reliable. The stability study shows that the system has good long-term stability.

Key words： metrology NO₂ monitoring FTIR dynamic dilution method standard gas

Received: 12 October 2017 Published: 19 April 2019

PACS:

TB99

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	Articles by authors
	LI Jian
	WANG De-fa
	XIA Chun
	MA Hao-miao
	WANG Man
	WANG Zhen
	HUANG Peng

Cite this article:

LI Jian,WANG De-fa,XIA Chun, et al. Research on a FTIR System for Accurate Measurement of Low Concentration NO₂[J]. Acta Metrologica Sinica, 2019, 40(3): 517-521.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2019.03.27 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2019/V40/I3/517

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