摘要
为研究温室效应和全球变暖等环境问题,需要对温室气体检测方法进行探索和分析。构建基于宽带红外光源和悬臂梁型微音器光声光谱检测系统,利用该系统检测空气中重要大气温室气体之一CO_(2)浓度。为研究系统测量准确性和稳定性,结合不同体积分数CO_(2)样气(1.51×10^(-4),2.04×10^(-4),3.58×10^(-4),4.03×10^(-4),4.54×10^(-4),4.95×10^(-4))对系统进行测量和校准,分析不同校准情况的解决方案。利用构建系统与GASERA-ONE光声光谱仪对室外大气进行连续观测,测量结果表明两者具有较好一致性。研究表明,该系统能够实现CO_(2)浓度高精度连续测量,对大气环境监测具有重要意义。
In order to study environmental issues such as the greenhouse effect and global warming,it is necessary to explore and analyze greenhouse gas detection methods.A photoacoustic spectroscopy detection system based on a broadband infrared light source and a cantilever beam microphone was constructed.The system was used to detect the concentration of CO_(2),one of the important atmospheric greenhouse gases in the air.In order to study the measurement accuracy and stability of the system,the system was measured and calibrated in combination with CO_(2)sample gases of different volume fractions(1.51×10^(-4),2.04×10^(-4),3.58×10^(-4),4.03×10^(-4),4.54×10^(-4),4.95×10^(-4)),and the solutions for different calibration cases were analyzed.The constructed system and the GASERA-ONE photoacoustic spectrometer were used to continuously observe the outdoor atmosphere,and the measurement results showed that the two instruments were in good agreement.The constructed system is capable of continuously and accurately measuring the atmospheric CO_(2)concentration,which is of great significance to the monitoring of atmospheric environment.
作者
雒静
牟福生
王松
LUO Jing;MOU Fusheng;WANG Song(School of Physics and Electronics Information,Huaibei Normal University,235000,Huaibei,Anhui,China)
出处
《淮北师范大学学报(自然科学版)》
2025年第2期19-23,共5页
Journal of Huaibei Normal University:Natural Sciences
基金
国家自然科学基金项目(41875012)
安徽省自然科学研究基金项目(2208085QF215)
安徽省高校自然科学研究项目(2023AH050338)。
关键词
悬臂梁
CO_(2)
光声光谱
环境检测
红外光源
cantilever beam
CO_(2)
photoacoustic spectroscopy
environmental detection
infrared light source
作者简介
雒静(1986-),女,山东德州人,博士,讲师,研究方向为光声光谱技术。
