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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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.
| Author(s): | Robertson, D.C., Hayward, G. and Gachagan, A. | 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: | 03 Jan 2019 11:51 |
| URI: | https://strathprints.strath.ac.uk/id/eprint/38620 |
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