Detection of Leak-Induced Pipeline Vibrations Using Fiber—Optic Distributed Acoustic Sensing
In the presented work, the potential of fiber-optic distributed acoustic sensing (DAS) for detection of small gas pipeline leaks (<1%) is investigated. Helical wrapping of the sensing fiber directly around the pipeline is used to increase the system sensitivity for detection of weak leak-indu...
| Main Authors: | , , , , , |
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| Format: | Article |
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MDPI AG
2018-08-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/18/9/2841 |
| _version_ | 1797999554731180032 |
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| author | Pavol Stajanca Sebastian Chruscicki Tobias Homann Stefan Seifert Dirk Schmidt Abdelkarim Habib |
| author_facet | Pavol Stajanca Sebastian Chruscicki Tobias Homann Stefan Seifert Dirk Schmidt Abdelkarim Habib |
| author_sort | Pavol Stajanca |
| collection | DOAJ |
| description | In the presented work, the potential of fiber-optic distributed acoustic sensing (DAS) for detection of small gas pipeline leaks (<1%) is investigated. Helical wrapping of the sensing fiber directly around the pipeline is used to increase the system sensitivity for detection of weak leak-induced vibrations. DAS measurements are supplemented with reference accelerometer data to facilitate analysis and interpretation of recorded vibration signals. The results reveal that a DAS system using direct fiber application approach is capable of detecting pipeline natural vibrations excited by the broadband noise generated by the leaking medium. In the performed experiment, pipeline vibration modes with acceleration magnitudes down to single μg were detected. Simple leak detection approach based on spectral integration of time-averaged DAS signals in frequency domain was proposed. Potential benefits and limitations of the presented monitoring approach were discussed with respect to its practical applicability. We demonstrated that the approached is potentially capable of detection and localization of gas pipeline leaks with leak rates down to 0.1% of the pipeline flow volume and might be of interest for monitoring of short- and medium-length gas pipelines. |
| first_indexed | 2024-04-11T11:06:29Z |
| format | Article |
| id | doaj.art-8436b974f7cd45a4b1d743437b76b18d |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T11:06:29Z |
| publishDate | 2018-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-8436b974f7cd45a4b1d743437b76b18d2022-12-22T04:28:20ZengMDPI AGSensors1424-82202018-08-01189284110.3390/s18092841s18092841Detection of Leak-Induced Pipeline Vibrations Using Fiber—Optic Distributed Acoustic SensingPavol Stajanca0Sebastian Chruscicki1Tobias Homann2Stefan Seifert3Dirk Schmidt4Abdelkarim Habib5Bundesanstalt für Materialforschung und—Prüfung (BAM), Unter den Eichen 87, 12205 Berlin, GermanyBundesanstalt für Materialforschung und—Prüfung (BAM), Unter den Eichen 87, 12205 Berlin, GermanyBundesanstalt für Materialforschung und—Prüfung (BAM), Unter den Eichen 87, 12205 Berlin, GermanyBundesanstalt für Materialforschung und—Prüfung (BAM), Unter den Eichen 87, 12205 Berlin, GermanyBundesanstalt für Materialforschung und—Prüfung (BAM), Unter den Eichen 87, 12205 Berlin, GermanyBundesanstalt für Materialforschung und—Prüfung (BAM), Unter den Eichen 87, 12205 Berlin, GermanyIn the presented work, the potential of fiber-optic distributed acoustic sensing (DAS) for detection of small gas pipeline leaks (<1%) is investigated. Helical wrapping of the sensing fiber directly around the pipeline is used to increase the system sensitivity for detection of weak leak-induced vibrations. DAS measurements are supplemented with reference accelerometer data to facilitate analysis and interpretation of recorded vibration signals. The results reveal that a DAS system using direct fiber application approach is capable of detecting pipeline natural vibrations excited by the broadband noise generated by the leaking medium. In the performed experiment, pipeline vibration modes with acceleration magnitudes down to single μg were detected. Simple leak detection approach based on spectral integration of time-averaged DAS signals in frequency domain was proposed. Potential benefits and limitations of the presented monitoring approach were discussed with respect to its practical applicability. We demonstrated that the approached is potentially capable of detection and localization of gas pipeline leaks with leak rates down to 0.1% of the pipeline flow volume and might be of interest for monitoring of short- and medium-length gas pipelines.http://www.mdpi.com/1424-8220/18/9/2841distributed acoustic sensingDASdistributed vibration sensingDVSfiber-optic sensorspipeline monitoringleak detectionpipeline vibrations |
| spellingShingle | Pavol Stajanca Sebastian Chruscicki Tobias Homann Stefan Seifert Dirk Schmidt Abdelkarim Habib Detection of Leak-Induced Pipeline Vibrations Using Fiber—Optic Distributed Acoustic Sensing Sensors distributed acoustic sensing DAS distributed vibration sensing DVS fiber-optic sensors pipeline monitoring leak detection pipeline vibrations |
| title | Detection of Leak-Induced Pipeline Vibrations Using Fiber—Optic Distributed Acoustic Sensing |
| title_full | Detection of Leak-Induced Pipeline Vibrations Using Fiber—Optic Distributed Acoustic Sensing |
| title_fullStr | Detection of Leak-Induced Pipeline Vibrations Using Fiber—Optic Distributed Acoustic Sensing |
| title_full_unstemmed | Detection of Leak-Induced Pipeline Vibrations Using Fiber—Optic Distributed Acoustic Sensing |
| title_short | Detection of Leak-Induced Pipeline Vibrations Using Fiber—Optic Distributed Acoustic Sensing |
| title_sort | detection of leak induced pipeline vibrations using fiber optic distributed acoustic sensing |
| topic | distributed acoustic sensing DAS distributed vibration sensing DVS fiber-optic sensors pipeline monitoring leak detection pipeline vibrations |
| url | http://www.mdpi.com/1424-8220/18/9/2841 |
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