差分吸收光谱法大气环境质量在线连续监测系统的设计  

Design of an environmental air quality on-line continuous monitoring system based on differential optical absorption spectroscopy.

作　　者：崔厚欣[1] 齐汝宾[1] 张文军[1] 徐可欣[1] 

机构地区：[1]天津大学精密仪器与光电子工程学院精密测试技术及仪器国家重点实验室,天津300072

出　　处：《分析仪器》2008年第1期7-11,共5页Analytical Instrumentation

摘　　要：根据大气中污染气体SO_2和NO_2在紫外波段的光谱吸收特性,利用差分吸收光谱技术(DOAS),研制了大气环境质量在线连续检测系统。本文详细介绍了该系统的检测原理和设计。系统能快速、实时、高精度地监测大气中痕量污染气体的浓度,为环境监测和保护提供可靠的数据。对比试验表明,该系统设计合理,能满足空气质量在线连续监测的要求。An environmental air quality on-line continuous monitoring system based on the technology of differential optical absorption spectroscopy （DOAS） was designed for monitoring pollution gases in air with absorption spectra in UV region. The measurement principle and design of the system are described in detail. By using DOAS technology, the concentrations of trace pollution gases in air can be detected rapidly and accurately in real-time to provide reliable data for air protection. Comparative experiments showed that the design of the system is reasonable and the system can meet the requirement of air quality on-line continuous monitoring.

关 键 词：差分吸收光谱 空气质量 在线监测 痕量气体 

分 类 号：X831[环境科学与工程—环境工程]