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Experimental validation of applied strain sensors - importance, methods and still unsolved challenges

  • Fiber-optic strain sensors are increasingly used in very different technical fields. Sensors are provided with specifications defined by the manufacturer or ascertained by the interested user. If deformation sensors are to be used to evaluate the long-term behavior of safety-relevant structures or to monitor critical structure components, their performance and signal stability must be of high quality to enable reliable data recording. The measurement system must therefore be validated according to established technical rules and standards before its application and after. In some cases, not all details of the complex characteristic and performance of applied fiber-optic sensors are sufficiently understood, or can be validated because of a lack of knowledge and methods to check the sensors' behavior. This contribution focusses therefore on the importance of serious validation in avoiding a decrease or even deterioration of the sensors' function. Methods for validation of applied sensorsFiber-optic strain sensors are increasingly used in very different technical fields. Sensors are provided with specifications defined by the manufacturer or ascertained by the interested user. If deformation sensors are to be used to evaluate the long-term behavior of safety-relevant structures or to monitor critical structure components, their performance and signal stability must be of high quality to enable reliable data recording. The measurement system must therefore be validated according to established technical rules and standards before its application and after. In some cases, not all details of the complex characteristic and performance of applied fiber-optic sensors are sufficiently understood, or can be validated because of a lack of knowledge and methods to check the sensors' behavior. This contribution focusses therefore on the importance of serious validation in avoiding a decrease or even deterioration of the sensors' function. Methods for validation of applied sensors are discussed and should reveal weaknesses in validation of embedded or integrated fiber-optic deformation and/or strain sensors. An outlook to some research work that has to be carried out to ensure a well-accepted practical use of fiber-optic sensors is given.zeige mehrzeige weniger

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Metadaten
Autoren/innen:Wolfgang Habel, Vivien Schukar, Franziska Mewis, Harald Kohlhoff
Persönliche Herausgeber/innen:M. Yang, D. Wang, Y. Rao
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):4th Asia Pacific optional sensors conference (Proceedings)
Jahr der Erstveröffentlichung:2013
Organisationseinheit der BAM:8 Zerstörungsfreie Prüfung
8 Zerstörungsfreie Prüfung / 8.1 Sensorik, mess- und prüftechnische Verfahren
8 Zerstörungsfreie Prüfung / 8.6 Faseroptische Sensorik
Herausgeber (Institution):International society for optics and photonics (SPIE)
Jahrgang/Band:8924
Erste Seite:892410-1 - 892410-6
Freie Schlagwörter:Adhesive stability; Application-related changes; Durability; Fiber-optic sensor; Reliability; Sensor characteristics; Strain sensor; Validation
Veranstaltung:4th Asia Pacific optional sensors conference
Veranstaltungsort:Wuhan, China
Beginndatum der Veranstaltung:2013-10-15
Enddatum der Veranstaltung:2013-10-18
DOI:https://doi.org/10.1117/12.2036591
ISSN:0277-786X
Bemerkung:
Serientitel: Proceedings of SPIE – Series title: Proceedings of SPIE
Verfügbarkeit des Dokuments:Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
Bibliotheksstandort:Sonderstandort: Publica-Schrank
Datum der Freischaltung:20.02.2016
Referierte Publikation:Nein