差分光学吸收光谱法测量大气污染气体的研究

Study on Differential Optical Absorption Spectrometry for Atmospheric Pollutants Monitoring

摘要: 介绍了差分光学吸收光谱(DOAS)法测量大气污染气体的基本原理,描述了收发一体的DOAS系统的设计以及在同一波段对多种被测气体浓度同时进行反演的数据处理方法,并且对周围环境中的SO₂,O₃和NO₂进行了长期监测,得到的结果与实际情况相符合.

Abstract: The principle of the differential optical absorption spectrometry (DOAS) is presented.The design of the device integrating transmitter and receiver and the method to obtain the concentrations of several gases simultaneously in the same waveband are also described.The system is used to perform long-term monitoring of ambient SO₂,O₃ and NO₂,and the results are shown to be practical.