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Characterisation of the vibration of an ultrasonic transducer for guided wave applications

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conference contribution
posted on 27.07.2017, 12:33 by Marco Zennaro, Alex Haig, Daniel O'Boy, Stephen Walsh
Dry-coupled thickness-shear piezoelectric transducers are typically used to excite guided waves in plate-like or tubular structures in the frequency range of 20-150 kHz. The dispersive behaviour of guided waves and the excitation of unwanted wave modes require a precise tuning of the excitation frequency to facilitate effective inspection. A natural frequency analysis of a typical piezoelectric transducer has been performed to identify the shape of vibration in the frequency range indicated. Moreover, an experimental analysis of the vibration of the piezoelectric element through a scanning laser Doppler Vibrometer has been conducted. The numerical and experimental results agree in indicating no longitudinal mode is present up to 94 kHz. Experiments also has shown that the higher the frequency the higher the longitudinal component of displacement.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Published in

APSAC 2017, 2nd International Conference on: Applied Physics, System Science and Computers

Citation

ZENNARO, M. ...et al., 2018. Characterisation of the vibration of an ultrasonic transducer for guided wave applications. IN: Ntalianis, K. and Croitoru, A. (eds.) Applied Physics, System Science and Computers II: Proceedings of the 2nd International Conference on Applied Physics, System Science and Computers (APSAC2017), September 27-29, 2017, Dubrovnik, Croatia. Chaim: Springer, pp. 217-222.

Publisher

Springer

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

14/07/2017

Publication date

2018

Notes

This is a pre-copyedited version of a contribution published in Ntalianis, K. and Croitoru, A. (eds.) Applied Physics, System Science and Computers II: Proceedings of the 2nd International Conference on Applied Physics, System Science and Computers (APSAC2017), September 27-29, 2017, Dubrovnik, Croatia published by Springer. The definitive authenticated version is available online via http://doi.org/10.1007/978-3-319-75605-9

ISBN

9783319756042

ISSN

1876-1100

Book series

Lecture Notes in Electrical Engineering; 489

Language

en

Location

Dubrovnik, Croatia

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