基于紫外差分吸收光谱技术的NOx紫外平台研究  

Research on NOx Ultraviolet Platform Based on UV-DOAS Technology

作　　者：盛润坤 项金冬 陆生忠 SHENG Run-kun;XIANG Jin-dong;LU Sheng-zhong(Hangzhou Tranlion Technology Co.,Ltd,Hangzhou 310052,China)

机构地区：[1]杭州春来科技有限公司,杭州310052

出　　处：《中国环保产业》2020年第10期68-72,共5页China Environmental Protection Industry

摘　　要：文章分析了紫外差分吸收光谱技术的NOx紫外平台,该平台用直接方式测量NO、NO2气体浓度,相对误差在2%以内,且示值误差小于15ppm;平台响应时间T95小于4.5s;重复性指标中NO和NO2的相对标准偏差分别为0.105%和0.116%。平台能够精准测量汽车尾气中的NO、NO2浓度。This paper analyzed a NOx ultraviolet platform based on the UV-DOAS technology.The platform directly measures the concentration of NO and NO2 gases,with a relative error of less than 2%,and an indication error of less than 15ppm.The response time(T95)of the platform is less than 4.5s.The relative standard deviation of NO and NO2 in terms of repeatability was 0.105%and 0.116%.The platform can accurately measure the concentration of NO and NO2 in automobile exhaust.

关 键 词：氮氧化物 紫外差分光谱技术 最小二乘法 多项式拟合 

分 类 号：X831[环境科学与工程—环境工程]