Application of Broadband Photoacoustic Spectroscopy in Methane Concentration Detection

Shenlong Zha; Hongliang Ma; Changli Zha; Jiajin Chen; Xing Huang; Kun Liu; Shengbao Zhan

doi:10.3788/LOP56.043001

Laser & Optoelectronics Progress, Volume. 56, Issue 4, 043001(2019)

Application of Broadband Photoacoustic Spectroscopy in Methane Concentration Detection

Shenlong Zha¹, Hongliang Ma¹, Changli Zha¹, Jiajin Chen², Xing Huang¹, Kun Liu^2、*, and Shengbao Zhan¹

Author Affiliations

¹ School of Physics and Electronic Engineering, Anqing Normal University, Anqing, Anhui 246133, China

² Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, Anhui 230031, China

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Figures & Tables(5)

Fig. 1. Schematic of methane concentration detection system. (a) Broadband PAS detection system; (b) DAS detection system

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Fig. 2. DAS signal of methane at different concentrations

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Fig. 3. Methane concentration detected by broadband PAS detection system and DAS system

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Fig. 4. Allan variance for detected methane concentration

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Fig. 5. Photoacoustic signals under different pressures

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Shenlong Zha, Hongliang Ma, Changli Zha, Jiajin Chen, Xing Huang, Kun Liu, Shengbao Zhan. Application of Broadband Photoacoustic Spectroscopy in Methane Concentration Detection[J]. Laser & Optoelectronics Progress, 2019, 56(4): 043001

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Paper Information

Category: Spectroscopy

Received: Jul. 1, 2018

Accepted: Sep. 3, 2018

Published Online: Jul. 31, 2019

The Author Email: Kun Liu (liukun@aiofm.ac.cn)

DOI:10.3788/LOP56.043001

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology