Multifrequency transducers fabricated using PZT/P(VDF-TrFE) 1-3 composite

Kin Wing Kwok; H. L.W. Chan; C. L. Choy

doi:10.1080/00150199708228355

Multifrequency transducers fabricated using PZT/P(VDF-TrFE) 1-3 composite

Kin Wing Kwok, H. L.W. Chan, C. L. Choy

Research output: Journal article publication › Journal article › Academic research › peer-review

5 Citations (Scopus)

Abstract

A multifrequency composite ultrasonic transducer system is described. The transducer consists of lead zirconate titanate (PZT) piezoelectric ceramic cylinders embedded in a vinylidene fluoride/trifluoroethylene (P(VDF-TrFE)) copolymer matrix. Both phases are piezoelectrically active. By selecting an appropriate height to diameter ratio for the ceramic cylinders, the transducer can be made to resonate at a number of frequencies. The frequency of the resonance arising from the copolymer matrix depends on the composite thickness. The other resonance frequencies are determined by the height to diameter ratio of the ceramic cylinders. A number of multifrequency transducers have been constructed and the observed resonance frequencies agree well with the predictions, based on the mode coupling theory.

Original language	English
Pages (from-to)	75-82
Number of pages	8
Journal	Ferroelectrics
Volume	201
Issue number	1-4
DOIs	https://doi.org/10.1080/00150199708228355
Publication status	Published - 1 Jan 1997

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1080/00150199708228355

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title = "Multifrequency transducers fabricated using PZT/P(VDF-TrFE) 1-3 composite",

abstract = "A multifrequency composite ultrasonic transducer system is described. The transducer consists of lead zirconate titanate (PZT) piezoelectric ceramic cylinders embedded in a vinylidene fluoride/trifluoroethylene (P(VDF-TrFE)) copolymer matrix. Both phases are piezoelectrically active. By selecting an appropriate height to diameter ratio for the ceramic cylinders, the transducer can be made to resonate at a number of frequencies. The frequency of the resonance arising from the copolymer matrix depends on the composite thickness. The other resonance frequencies are determined by the height to diameter ratio of the ceramic cylinders. A number of multifrequency transducers have been constructed and the observed resonance frequencies agree well with the predictions, based on the mode coupling theory.",

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N2 - A multifrequency composite ultrasonic transducer system is described. The transducer consists of lead zirconate titanate (PZT) piezoelectric ceramic cylinders embedded in a vinylidene fluoride/trifluoroethylene (P(VDF-TrFE)) copolymer matrix. Both phases are piezoelectrically active. By selecting an appropriate height to diameter ratio for the ceramic cylinders, the transducer can be made to resonate at a number of frequencies. The frequency of the resonance arising from the copolymer matrix depends on the composite thickness. The other resonance frequencies are determined by the height to diameter ratio of the ceramic cylinders. A number of multifrequency transducers have been constructed and the observed resonance frequencies agree well with the predictions, based on the mode coupling theory.

AB - A multifrequency composite ultrasonic transducer system is described. The transducer consists of lead zirconate titanate (PZT) piezoelectric ceramic cylinders embedded in a vinylidene fluoride/trifluoroethylene (P(VDF-TrFE)) copolymer matrix. Both phases are piezoelectrically active. By selecting an appropriate height to diameter ratio for the ceramic cylinders, the transducer can be made to resonate at a number of frequencies. The frequency of the resonance arising from the copolymer matrix depends on the composite thickness. The other resonance frequencies are determined by the height to diameter ratio of the ceramic cylinders. A number of multifrequency transducers have been constructed and the observed resonance frequencies agree well with the predictions, based on the mode coupling theory.

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JO - Ferroelectrics

JF - Ferroelectrics

IS - 1-4

ER -

Multifrequency transducers fabricated using PZT/P(VDF-TrFE) 1-3 composite

Abstract

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