基于差分吸收光谱法的大气痕量气体在线检测技术

孙利群; 陈克新; 杨怀栋; 何庆声

基于差分吸收光谱法的大气痕量气体在线检测技术

1.
清华大学精密测试技术及仪器国家重点实验室,北京100084

详细信息

通讯作者:
孙利群（1964-），男，河北保定人，工学博士，教授，主要从事激光干涉测量及光谱测量技术研究。

中图分类号: O433.5+1
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出版历程
- 刊出日期: 2012-02-15

On-line monitoring technique for trace gases in atmosphere based on differential optical absorption spectroscopy

1.
State Key Laboratory of Precision Measurement Technology and Instruments,Tsinghua University,Beijing 100084,China

摘要

摘要: 差分光学吸收光谱学技术（Differential Optical Absorption Spectroscopy，DOAS）是近年来发展起来的一种实时检测大气中痕量气体浓度的有效方法，它采用线性最小二乘拟合方法，用痕量气体标准差分吸收截面对测量得到的差分吸收光谱进行拟合，得出大气中痕量气体的浓度。通过介绍DOAS方法的测量原理，在线监测系统的构成，气体浓度的反演方法，测量结果及讨论等内容，说明它在空气质量监测方面的优越性。
- 差分光学吸收光谱法，在线检测，最小二乘法，大气光学
Abstract: Differential optical absorption spectroscopy (DOAS) is a widely used method to measure trace gases in the atmosphere. The concentrations of trace gases can be retrieved by fitting differential absorption spectra with standard differential absorption cross-section using the linear least-square method. The basic principle of DOAS is introduced. The construction of DOAS on-line monitoring system was designed and the retrieval method of trace gases concentration based on the principle of least squares was discussed. The properties of DOAS system were tested by experiments. The advantages of DOAS system used in atmosphere quality monitoring are proven.
- differential optical absorption spectroscopy (DOSA)

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参考文献(1)

［1］MARKUS W, SIGRIST. Air monitoring by spectroscopy techniques［M］. New York:John Wiley & Sons，Inc，1993.
［2］刘文清，崔志成, 刘建国, 等，大气痕量气体测量的光谱和化学技术［J］.量子电子学报，2004, 21(2): 202-210.
LIU Wen-qing, CUI Zhi-cheng, LIU Jian-guo, et al. Measurement of atmospheric trace gases by spectroscopic and chemical techniques, ［J］. Chinese Journal of Quantum Electronics, 2004, 21(2): 202-210.（in Chinese with an English abstract）
［3］崔厚欣，齐汝宾，张文军，等. 差分吸收光谱法大气环境质量在线连续监测系统的设计［J］.分析仪器，2008(1):7-11.
CUI Hou-xin, QI Ru-bin, ZHANG Wen-jun, XU Ke-xin, et al, Design of an environmental air quality on-line continuous monitoring system based on differential optical absorption spectroscopy ［J］. Analytical Instrumentation, 2008(1): 7-11.（in Chinese with an English abstract）
［4］周斌，刘文清，齐峰，等.差分吸收光谱法测量大气污染的浓度反演方法研究［J］.物理学报，2001,50（9）: 1818-1823.
ZHOU Bin, LIU Wen-Qing, QI Feng, et al, Study of concentration retrieving method in differential optical absorption spectroscopy for measuring air pollutants ［J］, Acta Physica Sinica, 2001,50（9）:1818-1823.（in Chinese with an English abstract）
［5］JOHN M C, PLANE，CHIA-FU N. Differential optical absorption spectrometer for measuring atmospheric trace gases［J］.Rev. Sci. Instrum，1992,63: 1867-1876.

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