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Download fileCharacterisation of the vibration of an ultrasonic transducer for guided wave applications
conference contribution
posted on 2017-07-27, 12:33 authored by Marco Zennaro, Alex Haig, Daniel O'BoyDaniel O'Boy, Stephen WalshDry-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 ComputersCitation
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
SpringerVersion
- 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
2017-07-14Publication date
2018Notes
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/10.1007/978-3-319-75605-9ISBN
9783319756042ISSN
1876-1100Publisher version
Book series
Lecture Notes in Electrical Engineering; 489Language
- en