Distributed Brillouin sensing in optical fibers: Soil displacement monitoring using sensor-equipped geogrids
- This paper reports on the application of distributed Brillouin fiber optic sensing to the monitoring of geotechnical structures. The presented approach to Brillouin sensing offers an alternative to the common pulse-based measurements by using the frequency domain analysis. The focus of the research and field-testing work is to collect reliable structural health monitoring data from large-scale structures while preserving the System’s versatility in terms of being suitable for different application environments (soil structures, foundations, concrete construction works, pipelines etc.) and its robustness in being well functioning in harsh environments. Upon reviewing the presented application test, it is concluded that Brillouin frequency domain based monitoring, when applied to geotechnical structures, is capable of providing accurate strain readings representing deformations of the soil body, and reliable temperature readings for generating temperature profiles of the entireThis paper reports on the application of distributed Brillouin fiber optic sensing to the monitoring of geotechnical structures. The presented approach to Brillouin sensing offers an alternative to the common pulse-based measurements by using the frequency domain analysis. The focus of the research and field-testing work is to collect reliable structural health monitoring data from large-scale structures while preserving the System’s versatility in terms of being suitable for different application environments (soil structures, foundations, concrete construction works, pipelines etc.) and its robustness in being well functioning in harsh environments. Upon reviewing the presented application test, it is concluded that Brillouin frequency domain based monitoring, when applied to geotechnical structures, is capable of providing accurate strain readings representing deformations of the soil body, and reliable temperature readings for generating temperature profiles of the entire structure. An overview of the frequency domain analysis of Brillouin sensing and its digital implementation is given, along with the experiences and insights drawn from an open field test of sensor-equipped geogrid mats.…
Autor*innen: | N. Nöther, S. Wang, Aleksander Wosniok, R. Glötzl, J. Schneider-Glötzl |
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Persönliche Herausgeber*innen: | Y. L. Xu, S. Zhu, Y. Xia, Y.Q. Ni, S.S. Law, J. H. Yin, Z.Q. Su |
Dokumenttyp: | Beitrag zu einem Tagungsband |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | SHMII-6 - 6th International conference on structural health monitoring of intelligent infrastructure (Proceedings) |
Jahr der Erstveröffentlichung: | 2013 |
Herausgeber (Institution): | International society for structural health monitoring of intelligent infrastructure |
Erste Seite: | 290 |
Letzte Seite: | 295 |
Freie Schlagwörter: | Brillouin sensing; Distributed sensing; Fiber-optic sensing; Sensor-equipped geosynthetics; Strain and temperature measurements; Structural health monitoring |
Veranstaltung: | SHMII-6 - 6th International conference on structural health monitoring of intelligent infrastructure |
Veranstaltungsort: | Hong Kong, China |
Beginndatum der Veranstaltung: | 09.12.2013 |
Enddatum der Veranstaltung: | 11.12.2013 |
ISBN: | 978-962-367-768-4 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 20.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 09.01.2014 |