Fiber Bragg grating-based detection of cross sectional irregularities in metallic pipes

Pabitro Ray; Balaji Srinivasan; Krishnan Balasubramaniam; Prabhu Rajagopal

doi:10.1117/12.2263643

23 April 2017 Fiber Bragg grating-based detection of cross sectional irregularities in metallic pipes

Pabitro Ray, Balaji Srinivasan, Krishnan Balasubramaniam, Prabhu Rajagopal

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103236M (2017) https://doi.org/10.1117/12.2263643
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

Cross-sectional irregularities such as eccentricity are an important problem for pipe and tubing infrastructure. Recent work by the authors shows that such axially extended pipe irregularities can cause confinement and feature-guiding of lower order ultrasonic guided waves. In this paper, we demonstrate a technique to monitor such irregularities in pipes by detecting the feature-guided waves using fiber Bragg grating sensors. Our experimental results are in good agreement with the results reported in elastic wave literature.

Citation Download Citation

Pabitro Ray, Balaji Srinivasan, Krishnan Balasubramaniam, and Prabhu Rajagopal "Fiber Bragg grating-based detection of cross sectional irregularities in metallic pipes", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103236M (23 April 2017); https://doi.org/10.1117/12.2263643

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