Methane gas sensor based on a novel dual‐path multipass cell-Reference-Cited by-同舟云学术

Methane gas sensor based on a novel dual‐path multipass cell

Published:2023-06-19 Issue:1 Volume:66 Page:
ISSN:0895-2477
Container-title:Microwave and Optical Technology Letters
language:en
Short-container-title:Micro & Optical Tech Letters

Author:

Jiang Gui‐sheng¹,Wang Yu‐ting¹,Liu Qiang²,Chen Hang¹,Wang Shi‐qi¹,Zhang Yu¹,Wang Zhao‐xiang¹,Zhang Hui¹,Zha Shen‐long¹³^ORCID,Wang Ya¹,Ma Hong‐liang¹

Affiliation:

1. School of Electronic Engineering and Intelligent Manufacturing Anqing Normal University Anqing China

2. Key Laboratory of Atmospheric Optics Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences Hefei China

3. Anhui Key Laboratory of Mine Intelligent Equipment and Technology Anhui University of Science & Technology Huainan China

Abstract

AbstractWe have developed a novel dual‐path multipass cell (DP‐MPC) for trace gas detection. The sealed Herriott cell, measuring 16 × 16 × 41.5 cm, has two input/output coupling holes. By adjusting the mirror position and incident angle of the beam, optical paths of 105 and 37.5 m can be obtained, respectively. To test its performance, we setup a methane (CH4) concentration detection system by combining the DP‐MPC with a 1.65 μm distributed feedback laser and carried out a methane gas detection experiment. The Allan variance analysis showed that the limit of detection for the two optical paths were 6 and 30 ppb, respectively.

Publisher

Wiley

Subject

Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1002/mop.33794

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