【作者】 章江英； 谢建平； 明海； 吴云霞；

【Author】 ZhANG Jiangying, XIE Jianping, MING Hai, WU Yunxia(Department of Physics,University of Science and Technology of China, Hefei 230026 , China)

【机构】 中国科技大学物理系；

【摘要】 本实验在实验室内模拟测量实际大气中污染气体的差分吸收光谱(DOAS),在介绍差分吸收光谱技术同时,分析计算污染气体的浓度。实验设计了采用大气中的两种主要污染气体:工业锅炉的主要排放物SO2和机动车尾气的主要成分NO作为被测气体。用氘灯作为光源测量其在紫外波段的特征吸收,并通过光纤束连接光栅光谱仪,由计算机自动采集和处理数据。本实验取材新颖,结构简练,着眼于环境污染的检测,有助于提高当代大学生的环保意识,具有积极的社会效应。更多还原

【Abstract】 The method of the differential optical absorption spectrometry is used to measure theconcentrations of SO2 and NO in laboratory. The UV light from deuterium lamp is absorbed bypollution gas and then transmitted to the grating spectrometer which is connected to computer.The experimental data is collected and processed automatically. The experiment is novel, concise,focused on the monitor of environmental pollution, so, it has positive influence to the nowadaysundergraduate students.更多还原