Optical fibre-based reflective displacement sensor: computer modelling and application to impact detection in aeronautical structures

Josu Amorebieta; Iker Garcia; Gaizaka Durana; Gotzon Aldabaldetreku; Joseba Zubia; Idurre Sáez-Ocáriz

doi:10.1117/12.2273663

26 June 2017 Optical fibre-based reflective displacement sensor: computer modelling and application to impact detection in aeronautical structures

Josu Amorebieta, Iker Garcia, Gaizaka Durana, Gotzon Aldabaldetreku, Joseba Zubia, Idurre Sáez-Ocáriz

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Proceedings Volume 10329, Optical Measurement Systems for Industrial Inspection X; 103294R (2017) https://doi.org/10.1117/12.2273663
Event: SPIE Optical Metrology, 2017, Munich, Germany

Abstract

Impact detection is used as proof of concept to demonstrate that the design principle of optical fibre-based reflective displacement sensors is versatile enough to fit applications that go beyond the original concept for which they were designed, i.e. Tip Clearance and Tip Timing. For that, a custom software has been created that allows to find the best fibre arrangement within the fibre bundle that matches the specifications of the target application. After fabricating the fibre bundle, the validity and usefulness of the simulations have been assessed by means of laboratory measurements on the reflective displacement sensor. Finally some preliminary impact tests have been carried out to confirm the previous work.

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Josu Amorebieta, Iker Garcia, Gaizaka Durana, Gotzon Aldabaldetreku, Joseba Zubia, and Idurre Sáez-Ocáriz "Optical fibre-based reflective displacement sensor: computer modelling and application to impact detection in aeronautical structures", Proc. SPIE 10329, Optical Measurement Systems for Industrial Inspection X, 103294R (26 June 2017); https://doi.org/10.1117/12.2273663

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KEYWORDS

Reflectivity

Sensors

Fiber optics sensors

Computer simulations

Modeling

Structured optical fibers

Optical design

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