Temperature Compensation for Concentration of NO2 Based on DOAS

摘要：

　　Temperature has an effect on the accuracy of measurement results of NO2 by using differential optical absorption spectroscopy(DOAS)technology to monitor the concentration of polluted gases in air in real time.In this paper,a new method of temperature compensation is proposed,in which the integral value of differential absorption cross section is linearly fitted with the temperature.Fitting functions in selected five wave-bands are used to respectively compensate,and the results are compared.The experimental results show that the relative error after compensation is less than 1.67%,which can significantly improve the accuracy of NO2 concentration measurement.

关键词： Gas detectors Temperature compensation Integration Absorption spectroscopy Differential optical absorption spectroscopy

作者: Jingfang Zhao Yongcai Guo Fenglian Fan Yanping Wang Fang Chen

作者单位: Key Laboratory of Optoelectronic Technology and Systems of Ministry of Education,School of Optoelectronic Engineering,Chongqing University,Chongqing 400044,China

会议类型: 国际会议

会议名称: 2019 2nd International Conference on Mechanical Engineering, Industrial Materials and Industrial Electronics (MEIMIE 2019)2019年第二届机械工程、工业材料和工业电子国际会议(Meimie 2019)

会议地点: 大连

会议语种:英文

页码: 309-314

在线出版日期: 2019-03-29（万方平台首次上网日期，不代表论文的发表时间）