用于煤矿井下CH4和C2H2气体同时检测的双球耦合光纤光声传感器(DSC-FOPA

IF 3.1 3区物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION

Infrared Physics & Technology Pub Date : 2025-04-28 DOI:10.1016/j.infrared.2025.105894

Yongle Zhu , Guojie Wu , Yuchen Guan , Zhenfeng Gong , Liang Mei

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引用次数: 0

摘要

本文首次提出了一种新型的双球耦合光纤光声（DSC-FOPA）传感器，用于同时检测煤矿中乙炔（C2H2）和甲烷（CH4）。该传感器主要包括一个硅悬臂光纤传声器（SC-FOM）、一个双球耦合光声谐振器（DSC-PAR）。通过仿真分析对DSCR的性能进行了优化，结果表明具有两个共振峰的DSCR可以分别用于CH4和C2H2气体传感。此外，通过仿真分析对SC-FOM的尺寸进行优化，使其与DSC-PAR的第二共振峰相匹配，实现双共振光声信号增强效果。痕量CH4和C2H2气体已成功地实现了实验测量。DSC-FOPA传感器对CH4和C2H2的检出限（lod）分别为911和34 ppb。

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A dual-sphere coupled fiber optic photoacoustic (DSC-FOPA) sensor for CH4 and C2H2 gases simultaneous detection in underground coal mines

This paper presents, for the first time, a novel dual-sphere coupled fiber optic photoacoustic (DSC-FOPA) sensor for simultaneous sensing of acetylene (C₂H₂) and methane (CH₄) in coal mines. The sensor mainly contains a silicon cantilever fiber optic microphone (SC-FOM), a dual-sphere coupled photoacoustic resonator (DSC-PAR). The performance of the DSCR is optimized through simulation analysis, demonstrating that the DSCR with two resonance peaks can be used for CH₄ and C₂H₂ gas sensing, respectively. In addition, the dimensions of the SC-FOM are optimized by simulation analysis to match the second resonance peak of the DSC-PAR to achieve the dual-resonance photoacoustic signal enhancement effect. Trace CH₄ and C₂H₂ gases have been successfully implemented in experimental measurements. The limit of detections (LODs) of the DSC-FOPA sensor are 911 and 34 part per billion (ppb) for CH₄ and C₂H₂ respectively.

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来源期刊

Infrared Physics & Technology 物理-光学

CiteScore

5.70

自引率

12.10%

发文量

400

审稿时长

67 days

期刊介绍： The Journal covers the entire field of infrared physics and technology: theory, experiment, application, devices and instrumentation. Infrared'' is defined as covering the near, mid and far infrared (terahertz) regions from 0.75um (750nm) to 1mm (300GHz.) Submissions in the 300GHz to 100GHz region may be accepted at the editors discretion if their content is relevant to shorter wavelengths. Submissions must be primarily concerned with and directly relevant to this spectral region. Its core topics can be summarized as the generation, propagation and detection, of infrared radiation; the associated optics, materials and devices; and its use in all fields of science, industry, engineering and medicine. Infrared techniques occur in many different fields, notably spectroscopy and interferometry; material characterization and processing; atmospheric physics, astronomy and space research. Scientific aspects include lasers, quantum optics, quantum electronics, image processing and semiconductor physics. Some important applications are medical diagnostics and treatment, industrial inspection and environmental monitoring.