Affiliation:
1. University of Science and Technology of China
2. Hefei Normal University
3. Anhui Institute of Optics and Fine Mechanics
4. Advanced Laser Technology Laboratory of Anhui Province
Abstract
When measuring the concentrations of individual gases in gas mixtures via laser absorption spectroscopy, the widening of adjacent absorption spectral lines can cause them to overlap, which hinders the calculation of the gas concentrations. In this study, the causes of this hindrance are analyzed. By using the Partial Least Squares (PLS) algorithm, the relative error in the measured CO concentration for a mixture of CO and CH4 gases was less than 10% even when the volume ratio VCH4/CO (The ratio of CH4 gas concentration to CO gas concentration) reached 100. These results show that the PLS algorithm is able to determine accurate concentrations even with significant broadening and interference of spectral lines in mixed gases.
Funder
Key Research and Development Plan of Anhui Province
National Key Research and Development Program of China
National Natural Science Foundation of China
"Spark" Fund Project of Hefei Institutes of Physics Science, Chinese Academy Sciences, China
Key Projects of Natural Science Research in Colleges and Universities in Anhui Province, China
Key Projects of Anhui Province Key Laboratory of Simulation and Design for Electronic Information System
CAS & Bengbu Technology Transfer Project
Subject
Atomic and Molecular Physics, and Optics
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献