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.

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.

ORCID iDs

Gachagan, A. ORCID: https://orcid.org/0000-0002-9728-4120

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• Item metadata

  Item type:	Conference or Workshop Item(Paper)
  ID code:	38620
  Dates:	Date Event October 2002 Published
  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:	20 Jan 2021 14:32
  URI:	https://strathprints.strath.ac.uk/id/eprint/38620