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Article

An Empirical Study on Transmission Beamforming for Ultrasonic Guided-Wave Based Structural Health Monitoring

1
Institute for Aerospace Technology & The Composites Group, The University of Nottingham, Nottingham NG7 2RD, UK
2
Aernnova Engineering Division S.A., 28034 Madrid, Spain
3
Electronic Design Group, University of the Basque Country (UPV/EHU), 48013 Bilbao, Spain
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Sensors 2020, 20(5), 1445; https://doi.org/10.3390/s20051445
Received: 18 February 2020 / Revised: 2 March 2020 / Accepted: 3 March 2020 / Published: 6 March 2020
The development of reliable structural health monitoring techniques is enabling a healthy transition from preventive to condition-based maintenance, hence leading to safer and more efficient operation of different industries. Ultrasonic guided-wave based beamforming is one of the most promising techniques, which supports the monitoring of large thin-walled structures. However, beamforming has been typically applied to the post-processing stage (also known as virtual or receiver beamforming) because transmission or physical beamforming requires complex hardware configurations. This paper introduces an electronic structural health monitoring system that carries out transmission beamforming experiments by simultaneously emitting and receiving ultrasonic guided-waves using several transducers. An empirical characterization of the transmission beamforming technique for monitoring an aluminum plate is provided in this work. The high signal-to-noise ratio and accurate angular precision of the physical signal obtained in the experiments suggest that transmission beamforming can increase the reliability and robustnessof this monitoring technique for large structures and in real-world noisy environments. View Full-Text
Keywords: SHM; structural inspection; ultrasonic guided-waves; transmission beamforming; phased-array SHM; structural inspection; ultrasonic guided-waves; transmission beamforming; phased-array
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MDPI and ACS Style

Cantero-Chinchilla, S.; Aranguren, G.; Malik, M.K.; Etxaniz, J.; Martín de la Escalera, F. An Empirical Study on Transmission Beamforming for Ultrasonic Guided-Wave Based Structural Health Monitoring. Sensors 2020, 20, 1445. https://doi.org/10.3390/s20051445

AMA Style

Cantero-Chinchilla S, Aranguren G, Malik MK, Etxaniz J, Martín de la Escalera F. An Empirical Study on Transmission Beamforming for Ultrasonic Guided-Wave Based Structural Health Monitoring. Sensors. 2020; 20(5):1445. https://doi.org/10.3390/s20051445

Chicago/Turabian Style

Cantero-Chinchilla, Sergio, Gerardo Aranguren, Muhammad K. Malik, Josu Etxaniz, and Federico Martín de la Escalera. 2020. "An Empirical Study on Transmission Beamforming for Ultrasonic Guided-Wave Based Structural Health Monitoring" Sensors 20, no. 5: 1445. https://doi.org/10.3390/s20051445

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