The feasibility study of direct measurement of gas concentration in gas-liquid mixed phase by using photoacoustic spectrometry

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2025-05-16 DOI:10.1016/j.optlastec.2025.113132

Hongquan Zheng , Yu Sui , Bo Wang , Yunlong Li , Mingxue Huo , Tianqi Wang , Chaoming Liu , Yanqing Zhang , Guoliang Ma , Chunhua Qi

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Abstract

Nowadays, the measurement of gas concentration in gas–liquid mixed solutions based on photoacoustic spectroscopy technology calls for a degassing device in which the gas dissolved in the liquid can be degassed. However, there is no in-depth study on the method of measuring gas concentration in mixed solutions directly. In this paper, the mathematical relationship between the gas photoacoustic signal and its concentration is established with the liquid forced to vibrate as a pressure medium when the energy generated by gas due to absorption of frequency light radiation is considered as local thermal energy. What’s more, an experimental platform is built based on this relationship, which is also applied to conduct experimental study. This study was conducted to verify the feasibility of photoacoustic spectroscopy technology used in direct measurement of gas concentration in gas–liquid mixed solutions, which was conducted in terms of three aspects: the theory of photoacoustic spectroscopy technology, the construction of experimental platform, simulation and the experimental analysis.

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光声光谱法直接测定气液混合相中气体浓度的可行性研究

目前，基于光声光谱技术测量气液混合溶液中的气体浓度，需要一种能将溶解在液体中的气体脱气的装置。但是，对直接测量混合溶液中气体浓度的方法还没有深入的研究。本文将气体吸收频率光辐射产生的能量视为局部热能，将液体作为压力介质强迫振动，建立了气体光声信号与其浓度之间的数学关系。并基于此关系建立了实验平台，并应用该平台进行实验研究。为了验证光声光谱技术用于气液混合溶液中气体浓度直接测量的可行性，本研究从光声光谱技术理论、实验平台搭建、仿真和实验分析三个方面进行。

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems