The use of fibre Bragg grating sensors for damage detection and location in structural materials

Graham Thursby; Daniel Betz; Wieslaw Staszewski; Brian Culshaw

doi:10.1117/12.566631

9 June 2004 The use of fibre Bragg grating sensors for damage detection and location in structural materials

Graham Thursby, Daniel Betz, Wieslaw Staszewski, Brian Culshaw

Proceedings Volume 5502, Second European Workshop on Optical Fibre Sensors; (2004) https://doi.org/10.1117/12.566631
Event: Second European Workshop on Optical Fibre Sensors, 2004, Santander, Spain

Abstract

We describe a novel method of damage location using ultrasonic Lamb waves detected by fiber Bragg gratings. The gratings are configured in a rosette configuration in order that the direction of an incoming wave may be determined. Location of holes was determined by finding the intersect point of the reflected ultrasound signals obtained from two rosettes. Accurate results are obtained when optimum geometries source transducers an fiber gratings are used.

Citation Download Citation

Graham Thursby, Daniel Betz, Wieslaw Staszewski, and Brian Culshaw "The use of fibre Bragg grating sensors for damage detection and location in structural materials", Proc. SPIE 5502, Second European Workshop on Optical Fibre Sensors, (9 June 2004); https://doi.org/10.1117/12.566631

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