Automated System for Detecting Atmospheric Gases CO, CO2, and CH4 Based on Optical Parametric Oscillators

IF 0.4 4区工程技术 Q4 ENGINEERING, MULTIDISCIPLINARY

Instruments and Experimental Techniques Pub Date : 2024-10-23 DOI:10.1134/S0020441224700738

E. Yu. Erushin, N. Yu. Kostyukova, A. A. Boyko, I. B. Miroshnichenko

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引用次数: 0

Abstract

The multicomponent gas analyzer has a wide range of applications, such as environmental monitoring, chemical reaction and industrial process control, accident prevention, exploration in the oil and gas industries, and biomedicine. Laser photoacoustic spectroscopy is the universal method for analyzing gaseous impurities due to its high selectivity, sensitivity, and fast response. This paper presents an automated gas analysis system based on the combined optical parametric oscillators tuning from 2.5 to 10.8 µm. The full width at half maximum of the spectral line is approximately 5.5 ± 0.5 cm^–1 in the range from 2.5 to 4.5 μm and approximately 2 ± 0.5 cm^–1 in the range from 4.5 to 10.8 μm. Using software installed on the control computer, the controller performs all necessary operations, including pumping, analysis, and removal of gas samples in the measuring complex. The paper presents experimentally recorded absorption spectra of gas mixtures of CO, CO₂, and CH₄ obtained using a differential photoacoustic detector.

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基于光参量振荡器的大气气体 CO、CO2 和 CH4 自动检测系统

多组分气体分析仪应用广泛，如环境监测、化学反应和工业过程控制、事故预防、石油和天然气工业勘探以及生物医学。激光光声光谱法具有选择性高、灵敏度高、响应速度快等特点，是分析气体杂质的通用方法。本文介绍了一种基于 2.5 至 10.8 µm 组合光学参量振荡器的自动气体分析系统。在 2.5 至 4.5 μm 范围内，光谱线的半最大全宽约为 5.5 ± 0.5 cm-1，在 4.5 至 10.8 μm 范围内，半最大全宽约为 2 ± 0.5 cm-1。控制器利用安装在控制计算机上的软件执行所有必要的操作，包括抽气、分析和移除测量复合体中的气体样品。本文介绍了利用差分光声探测器获得的 CO、CO2 和 CH4 混合气体吸收光谱的实验记录。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Instruments and Experimental Techniques 工程技术-工程：综合

CiteScore

1.20

自引率

33.30%

发文量

113

审稿时长

4-8 weeks

期刊介绍： Instruments and Experimental Techniques is an international peer reviewed journal that publishes reviews describing advanced methods for physical measurements and techniques and original articles that present techniques for physical measurements, principles of operation, design, methods of application, and analysis of the operation of physical instruments used in all fields of experimental physics and when conducting measurements using physical methods and instruments in astronomy, natural sciences, chemistry, biology, medicine, and ecology.