传感技术学报2011，Vol.24Issue(9)：1238-1241,4.DOI:10.3969/j.issn.1004-1699.2011.09.002
基于紫外差分算法的机动车尾气检测方法研究
UV Differential Algorithm Used for Vehicle Tail-Gas Determination
摘要
Abstract
A method based on differential optical absorption spectroscopy( DO AS) technique is developed to the concentration determination of SO2 and NOX on the vehicle tail-gas measuring. The fundamentals theory and the differential optical path of DOAS are discussed and analyzed. Then the multiple linear regression models and the least-square fit method are used to realize the DOAS data processing algorithm. Moreover, the vehicle tail-gas measuring software with Laboratory Virtual Instrument Engineering Workbench ( LabVIEW)is designed to realize the spectroscopic data collection, processing, display, save and poll. Serials of standard gas experiment show that the measurement system can fulfill the requirements of the on-line measuring for vehicle exhaust with a proper measurement accuracy and stability.关键词
尾气检测/吸收光谱测量/紫外差分/最小二乘法/LabVIEWKey words
tail-gas determination/ absorption spectrometry/ DO AS/ least square method/ LabVIEW分类
机械制造引用本文复制引用
韩芳芳,张晓玲,孙永跃,张宝峰..基于紫外差分算法的机动车尾气检测方法研究[J].传感技术学报,2011,24(9):1238-1241,4.基金项目
天津市高等学校科技发展基金项目(20060806) （20060806）
