大气与环境光学学报2025，Vol.20Issue(6)：739-751,13.DOI:10.3969/j.issn.1673-6141.2025.06.005
基于法布里-珀罗干涉仪的CO2原位测量研究
Research on in-situ measurement of atmospheric CO2 based on Fabry-Perot interferometer
摘要
Abstract
The increasing volume fraction of CO2 in the atmosphere has led to the intensification of global warming,and at the same time,plasces higher demands on high-precision detection of CO2 and accurate monitoring and assessment of its emissions.In response to this requirement,a measurement system based on Fabry-Perot interferometer was developed for atmospheric CO2 measurement in this paper.The system was calibrated using sample gas in the laboratory,and it was found that the relative error of the system measurement was less than 0.5%,the detection accuracy was better than 1.43×10-6,and the system detection limit was 1.24×10-6 at a time resolution of 30 minutes.To further verify the feasibility of the system for measurement in actual atmospheric environments,a comparison test between this system and a portable FTIR spectrometer for measring atmospheric CO2 volume fraction was carried out outdoors for 14 days.The results showed that the CO2 volume fraction measured by the two systems exhibited consistent trends with a correlation coefficient R2 of 0.81,indicating that the system can provide a portable and high-accuracy reference solution for online monitoring of atmospheric CO2 volume fraction.关键词
法布里-珀罗干涉仪/吸收光谱/二氧化碳/便携式测量Key words
Fabry-Perot interferometer/absorption spectroscopy/carbon dioxide/portable measurement分类
资源环境引用本文复制引用
李友涛,谢品华,徐晋,吕寅生,张华荣,张之栋,凌六一,邢丽坤..基于法布里-珀罗干涉仪的CO2原位测量研究[J].大气与环境光学学报,2025,20(6):739-751,13.基金项目
国家自然科学基金面上项目(41975037),国家自然科学基金区域联合基金项目(U19A2044),安徽省重点研发计划项目(202004i07020013),安徽省科技重大专项(202203a07020003),中国科学院合肥物质科学研究院院长基金(YZJJQY202205) （41975037）
