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Proceedings Paper

The role of experimental validation in achieving reliable measurement data with applied FBG strain sensors
Author(s): Wolfgang R. Habel; Vivien G. Schukar; Nadine Kusche
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Paper Abstract

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. In some cases, sensor specification is not sufficiently validated and must therefore additionally be validated in a laboratory, primarily to ensure reliable measurement information over the intended period of operation. Even if the performance of delivered sensor is well specified, the sensor's strain characteristics and the performance of an applied sensor can significantly differ from the virgin sensor’s performance. In this case, applied sensors do not provide full reliability and lead sometimes to uncertain measurement results. This contribution will therefore focus on the role of validation in avoiding a decrease or even deterioration of the sensor function of applied sensors. Experimental validation - not only modelling - is very important, however, before experimental investigations are planned knowledge about key issues and problems that influence the measurement results must be available. Few aspects to be considered and investigated will be discussed. Selected experimental facilities to reveal weaknesses in the sensor function will be described; an outlook to open questions is given.

Paper Details

Date Published: 11 April 2013
PDF: 11 pages
Proc. SPIE 8693, Smart Sensor Phenomena, Technology, Networks, and Systems Integration 2013, 86930C (11 April 2013); doi: 10.1117/12.2009677
Show Author Affiliations
Wolfgang R. Habel, Bundesanstalt für Materialforschung und -prüfung (Germany)
Vivien G. Schukar, Bundesanstalt für Materialforschung und -prüfung (Germany)
Nadine Kusche, Bundesanstalt für Materialforschung und -prüfung (Germany)


Published in SPIE Proceedings Vol. 8693:
Smart Sensor Phenomena, Technology, Networks, and Systems Integration 2013
Kara J. Peters; Wolfgang Ecke; Theodoros E. Matikas, Editor(s)

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