Detection of Hydrogen Sulfide in Sewer Using an Erbium-Doped Fiber Amplified Diode Laser and a Gold-Plated Photoacoustic Cell
A photoacoustic detection module based on a gold-plated photoacoustic cell was reported in this manuscript to measure hydrogen sulfide (H<sub>2</sub>S) gas in sewers. A 1582 nm distributed feedback (DFB) diode laser was employed as the excitation light source of the photoacoustic sensor....
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/19/6505 |
| _version_ | 1797477908391919616 |
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| author | Chaofan Feng Marilena Giglio Biao Li Angelo Sampaolo Pietro Patimisco Vincenzo Spagnolo Lei Dong Hongpeng Wu |
| author_facet | Chaofan Feng Marilena Giglio Biao Li Angelo Sampaolo Pietro Patimisco Vincenzo Spagnolo Lei Dong Hongpeng Wu |
| author_sort | Chaofan Feng |
| collection | DOAJ |
| description | A photoacoustic detection module based on a gold-plated photoacoustic cell was reported in this manuscript to measure hydrogen sulfide (H<sub>2</sub>S) gas in sewers. A 1582 nm distributed feedback (DFB) diode laser was employed as the excitation light source of the photoacoustic sensor. Operating pressure within the photoacoustic cell and laser modulation depth were optimized at room temperature, and the long-term stability of the photoacoustic sensor system was analyzed by an Allan-Werle deviation analysis. Experimental results showed that under atmospheric pressure and room temperature conditions, the photoacoustic detection module exhibits a sensitivity of 11.39 μV/ppm of H<sub>2</sub>S and can reach a minimum detection limit (1σ) of 140 ppb of H<sub>2</sub>S with an integration time of 1 s. The sensor was tested for in-field measurements by sampling gas in the sewer near the Shanxi University canteen: levels of H<sub>2</sub>S of 81.5 ppm were measured, below the 100 ppm limit reported by the Chinese sewer bidding document. |
| first_indexed | 2024-03-09T21:24:26Z |
| format | Article |
| id | doaj.art-336bd297999449eab2b0feb5463cce55 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T21:24:26Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-336bd297999449eab2b0feb5463cce552023-11-23T21:12:31ZengMDPI AGMolecules1420-30492022-10-012719650510.3390/molecules27196505Detection of Hydrogen Sulfide in Sewer Using an Erbium-Doped Fiber Amplified Diode Laser and a Gold-Plated Photoacoustic CellChaofan Feng0Marilena Giglio1Biao Li2Angelo Sampaolo3Pietro Patimisco4Vincenzo Spagnolo5Lei Dong6Hongpeng Wu7State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, ChinaPolySense Lab—Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Amendola 173, 70126 Bari, ItalyState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, ChinaPolySense Lab—Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Amendola 173, 70126 Bari, ItalyPolySense Lab—Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Amendola 173, 70126 Bari, ItalyPolySense Lab—Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Amendola 173, 70126 Bari, ItalyState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, ChinaState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, ChinaA photoacoustic detection module based on a gold-plated photoacoustic cell was reported in this manuscript to measure hydrogen sulfide (H<sub>2</sub>S) gas in sewers. A 1582 nm distributed feedback (DFB) diode laser was employed as the excitation light source of the photoacoustic sensor. Operating pressure within the photoacoustic cell and laser modulation depth were optimized at room temperature, and the long-term stability of the photoacoustic sensor system was analyzed by an Allan-Werle deviation analysis. Experimental results showed that under atmospheric pressure and room temperature conditions, the photoacoustic detection module exhibits a sensitivity of 11.39 μV/ppm of H<sub>2</sub>S and can reach a minimum detection limit (1σ) of 140 ppb of H<sub>2</sub>S with an integration time of 1 s. The sensor was tested for in-field measurements by sampling gas in the sewer near the Shanxi University canteen: levels of H<sub>2</sub>S of 81.5 ppm were measured, below the 100 ppm limit reported by the Chinese sewer bidding document.https://www.mdpi.com/1420-3049/27/19/6505hydrogen sulfideerbium-doped fiber amplifiergold-plated photoacoustic cellsewer gas detection |
| spellingShingle | Chaofan Feng Marilena Giglio Biao Li Angelo Sampaolo Pietro Patimisco Vincenzo Spagnolo Lei Dong Hongpeng Wu Detection of Hydrogen Sulfide in Sewer Using an Erbium-Doped Fiber Amplified Diode Laser and a Gold-Plated Photoacoustic Cell Molecules hydrogen sulfide erbium-doped fiber amplifier gold-plated photoacoustic cell sewer gas detection |
| title | Detection of Hydrogen Sulfide in Sewer Using an Erbium-Doped Fiber Amplified Diode Laser and a Gold-Plated Photoacoustic Cell |
| title_full | Detection of Hydrogen Sulfide in Sewer Using an Erbium-Doped Fiber Amplified Diode Laser and a Gold-Plated Photoacoustic Cell |
| title_fullStr | Detection of Hydrogen Sulfide in Sewer Using an Erbium-Doped Fiber Amplified Diode Laser and a Gold-Plated Photoacoustic Cell |
| title_full_unstemmed | Detection of Hydrogen Sulfide in Sewer Using an Erbium-Doped Fiber Amplified Diode Laser and a Gold-Plated Photoacoustic Cell |
| title_short | Detection of Hydrogen Sulfide in Sewer Using an Erbium-Doped Fiber Amplified Diode Laser and a Gold-Plated Photoacoustic Cell |
| title_sort | detection of hydrogen sulfide in sewer using an erbium doped fiber amplified diode laser and a gold plated photoacoustic cell |
| topic | hydrogen sulfide erbium-doped fiber amplifier gold-plated photoacoustic cell sewer gas detection |
| url | https://www.mdpi.com/1420-3049/27/19/6505 |
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