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. (https://doi.org/10.1109/ULTSYM.2002.1192504)
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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.
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Item type: Conference or Workshop Item(Paper) ID code: 38620 Dates: DateEventOctober 2002PublishedSubjects: 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: 09 Apr 2024 04:57 URI: https://strathprints.strath.ac.uk/id/eprint/38620