物理学报2012，Vol.61Issue(14)：114-122,9.
红外差分光学吸收光谱技术测量环境大气中的水汽
Measurement of atmospheric water vapor using infrared differential optical absorption spectroscopy
摘要
Abstract
In this paper,we present a method of measuring atmospheric water vapor concentration by using infrared differential optical absorption spectroscopy（DOAS）.The experimental setup is converted from a self-made non-dispersive infrared multi-gas analyzer. In the process of DOAS retrieval,the reference absorption cross section is calculated by applying the Voigt broadening method to the absorption lines from HITRAN database.The influences of temperature,pressure and instrument function are also taken into account in the calculation.A validation study of the water vapor measurement is performed by comparing the results measured by a non-dispersive infrared analyzer.The results show good agreement with each other（correlation coefficient = 0.93347）.It indicates that the infrared DOAS technique has the potential applications to other gases measurements which have no or weak absorption within the UV region, e.g.CO_2,CH_4,CO,N_2O,etc.关键词
环境污染监测/光学测量技术/红外DOAS/水汽测量Key words
environmental pollution measurements/infrared technology/infrared DOAS/water vapor measurement分类
化学化工引用本文复制引用
孙友文,刘文清,谢品华,陈嘉乐,曾议,徐晋,李昂,司福祺,李先欣..红外差分光学吸收光谱技术测量环境大气中的水汽[J].物理学报,2012,61(14):114-122,9.基金项目
国家高技术研究发展计划 （）
国家自然科学基金 （）
安徽省优秀青年科技基金（批准号：10040606Y28）资助的课题~~ （）
