Lamb wave suppression in periodic 1-3 piezoelectric composite transducers

Robertson, D.C. and Hayward, G. and Gachagan, A. (2002) Lamb wave suppression in periodic 1-3 piezoelectric composite transducers. In: IEEE International Ultrasonic Symposium, 2002-10-08 - 2002-10-11.

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Abstract

This paper investigates suppression of Lamb waves in piezoelectric composite transducers by matching their frequency to the even harmonics of the device thickness mode. This was done by a combination of experimental measurement on a number of transducers along with simulations using the finite element code PzFlex. Both 2-2 and 1-3 composites made from the single crystal materials pzn-4.5%pt and pzn-8%pt were investigated along with composites made from pzt5h ceramic. The theory is supported by means of experimental impedance analysis and laser scanning of surface displacement, with good agreement demonstrated.

Creators(s): Robertson, D.C., Hayward, G. and Gachagan, A. ORCID logoORCID: https://orcid.org/0000-0002-9728-4120;
Item type:Conference or Workshop Item(Paper)
ID code:38620
Keywords:lamb wave, suppression, periodic, 1-3, piezoelectric , composite transducers, Electrical engineering. Electronics Nuclear engineering
Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
Department:Faculty of Engineering > Electronic and Electrical Engineering
Depositing user: Pure Administrator
Date deposited:21 Mar 2012 16:21
Last modified:02 Sep 2020 04:56
URI:https://strathprints.strath.ac.uk/id/eprint/38620
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