Study on the photoacoustic spectroscopy measurement of methane with different laser bias DC waveforms
In dissolved gas analysis of transformers, methane is one of the key indicators for fault diagnosis, thus accurate methane detection means a lot for early transformer failure caused by partial discharge or overheat. Photoacoustic Spectroscopy (PAS) combined with Tunable Diode Laser (TDL) as light so...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2025-05-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2025.1615548/full |
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| author | Li Mengqi Li Mengqi Chen Zhengguang Wang Jie Qin Haohao Zhou Zhenqin Huang Siqi Wang Qiaohua |
| author_facet | Li Mengqi Li Mengqi Chen Zhengguang Wang Jie Qin Haohao Zhou Zhenqin Huang Siqi Wang Qiaohua |
| author_sort | Li Mengqi |
| collection | DOAJ |
| description | In dissolved gas analysis of transformers, methane is one of the key indicators for fault diagnosis, thus accurate methane detection means a lot for early transformer failure caused by partial discharge or overheat. Photoacoustic Spectroscopy (PAS) combined with Tunable Diode Laser (TDL) as light source, is to provide high precision and selectivity in gas measurement, especially in conditions of trace gas measurement with limited light length and sample volume. By constructing an experimental platform, the intensity, linearity, and stability of photoacoustic signals under different bias DC waveforms (sawtooth wave, triangle wave, and sine wave) were compared and analyzed. The experimental results indicate that different bias DC waveforms have a significant impact on the photoacoustic signal. With sine wave configuration the system achieves the best measurement performance and accurate methane measurement (under 1.4 s integrated time, the detection limit 0.2 ppm) and meets the requirement of on-line dissolved gas analysis (DGA) for transformers. |
| format | Article |
| id | doaj-art-08ff363c87d14807a1301361cdeb8615 |
| institution | OA Journals |
| issn | 2296-598X |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj-art-08ff363c87d14807a1301361cdeb86152025-08-20T02:34:50ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2025-05-011310.3389/fenrg.2025.16155481615548Study on the photoacoustic spectroscopy measurement of methane with different laser bias DC waveformsLi Mengqi0Li Mengqi1Chen Zhengguang2Wang Jie3Qin Haohao4Zhou Zhenqin5Huang Siqi6Wang Qiaohua7Wuhan NARI Co. Ltd., State Grid Electric Power Research Institute, Wuhan, ChinaSchool of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, ChinaState Grid Corporation of China, Beijing, ChinaElectric Power Science Research Institute State Grid Sichuan Electric Power Company, Chengdu, ChinaWuhan NARI Co. Ltd., State Grid Electric Power Research Institute, Wuhan, ChinaWuhan NARI Co. Ltd., State Grid Electric Power Research Institute, Wuhan, ChinaDepartment of Electrical Engineering, Shanghai Jiao Tong University, Shanghai, ChinaDepartment of Electrical Engineering, Shanghai Jiao Tong University, Shanghai, ChinaIn dissolved gas analysis of transformers, methane is one of the key indicators for fault diagnosis, thus accurate methane detection means a lot for early transformer failure caused by partial discharge or overheat. Photoacoustic Spectroscopy (PAS) combined with Tunable Diode Laser (TDL) as light source, is to provide high precision and selectivity in gas measurement, especially in conditions of trace gas measurement with limited light length and sample volume. By constructing an experimental platform, the intensity, linearity, and stability of photoacoustic signals under different bias DC waveforms (sawtooth wave, triangle wave, and sine wave) were compared and analyzed. The experimental results indicate that different bias DC waveforms have a significant impact on the photoacoustic signal. With sine wave configuration the system achieves the best measurement performance and accurate methane measurement (under 1.4 s integrated time, the detection limit 0.2 ppm) and meets the requirement of on-line dissolved gas analysis (DGA) for transformers.https://www.frontiersin.org/articles/10.3389/fenrg.2025.1615548/fulltunable laserphotoacousticmethanesine waveformdissolved gas analysis |
| spellingShingle | Li Mengqi Li Mengqi Chen Zhengguang Wang Jie Qin Haohao Zhou Zhenqin Huang Siqi Wang Qiaohua Study on the photoacoustic spectroscopy measurement of methane with different laser bias DC waveforms Frontiers in Energy Research tunable laser photoacoustic methane sine waveform dissolved gas analysis |
| title | Study on the photoacoustic spectroscopy measurement of methane with different laser bias DC waveforms |
| title_full | Study on the photoacoustic spectroscopy measurement of methane with different laser bias DC waveforms |
| title_fullStr | Study on the photoacoustic spectroscopy measurement of methane with different laser bias DC waveforms |
| title_full_unstemmed | Study on the photoacoustic spectroscopy measurement of methane with different laser bias DC waveforms |
| title_short | Study on the photoacoustic spectroscopy measurement of methane with different laser bias DC waveforms |
| title_sort | study on the photoacoustic spectroscopy measurement of methane with different laser bias dc waveforms |
| topic | tunable laser photoacoustic methane sine waveform dissolved gas analysis |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2025.1615548/full |
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