Damage detection in structural materials using a polarimetric fiber optic sensor

Graham Thursby; Borja Sorazu; Fengzhong Dong; Daniel C. Betz; Brian Culshaw

doi:10.1117/12.484758

22 July 2003 Damage detection in structural materials using a polarimetric fiber optic sensor

Graham Thursby, Borja Sorazu, Fengzhong Dong, Daniel C. Betz, Brian Culshaw

Proceedings Volume 5050, Smart Structures and Materials 2003: Smart Sensor Technology and Measurement Systems; (2003) https://doi.org/10.1117/12.484758
Event: Smart Structures and Materials, 2003, San Diego, California, United States

Abstract

We describe a novel but simple method of detecting Lamb waves through the measurement of the changes in the polarimetric state of light propagating through an optical fibre which has been either embedded into or bonded onto the plate to be tested. The directional properties of the sensor are described, as is its ability to detect a hole produced in the plate. We also show how the relative sizes of the detected signal amplitudes from the source PZT and from the hole vary according to the alignment of the source with the sensor axis.

Citation Download Citation

Graham Thursby, Borja Sorazu, Fengzhong Dong, Daniel C. Betz, and Brian Culshaw "Damage detection in structural materials using a polarimetric fiber optic sensor", Proc. SPIE 5050, Smart Structures and Materials 2003: Smart Sensor Technology and Measurement Systems, (22 July 2003); https://doi.org/10.1117/12.484758

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