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Validation and qualification of surface-applied fibre optic strain sensors using application-independent optical techniques

  • Surface-applied fibre optic strain sensors were investigated using a unique validation facility equipped with application-independent optical reference systems. First, different adhesives for the sensor's application were analysed regarding their material properties. Measurements resulting from conventional measurement techniques, such as thermo-mechanical analysis and dynamic mechanical analysis, were compared with measurements resulting from digital image correlation, which has the advantage of being a non-contact technique. Second, fibre optic strain sensors were applied to test specimens with the selected adhesives. Their strain-transfer mechanism was analysed in comparison with conventional strain gauges. Relative movements between the applied sensor and the test specimen were visualized easily using optical reference methods, digital image correlation and electronic speckle pattern interferometry. Conventional strain gauges showed limited opportunities for an objectiveSurface-applied fibre optic strain sensors were investigated using a unique validation facility equipped with application-independent optical reference systems. First, different adhesives for the sensor's application were analysed regarding their material properties. Measurements resulting from conventional measurement techniques, such as thermo-mechanical analysis and dynamic mechanical analysis, were compared with measurements resulting from digital image correlation, which has the advantage of being a non-contact technique. Second, fibre optic strain sensors were applied to test specimens with the selected adhesives. Their strain-transfer mechanism was analysed in comparison with conventional strain gauges. Relative movements between the applied sensor and the test specimen were visualized easily using optical reference methods, digital image correlation and electronic speckle pattern interferometry. Conventional strain gauges showed limited opportunities for an objective strain-transfer analysis because they are also affected by application conditions.zeige mehrzeige weniger

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Metadaten
Autor*innen:Vivien Schukar, Daniel Kadoke, Nadine Kusche, Sven Münzenberger, Klaus-Peter Gründer, Wolfgang Habel
Dokumenttyp:Zeitschriftenartikel
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Measurement science and technology
Jahr der Erstveröffentlichung:2012
Verlag:IOP Publ. Ltd.
Verlagsort:Bristol
Jahrgang/Band:23
Ausgabe/Heft:8
Erste Seite:085601-1 - 085601-9
Freie Schlagwörter:Digital image correlation; Electronic speckle pattern interferometry; Fiber Bragg grating; Qualification; Strain transfer; Surface application
DOI:10.1088/0957-0233/23/8/085601
ISSN:0957-0233
ISSN:1361-6501
Verfügbarkeit des Dokuments:Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
Bibliotheksstandort:Sonderstandort: Publica-Schrank
Datum der Freischaltung:19.02.2016
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:15.10.2012
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