Performance of a high dielectric constant piezoelectric ceramic for ultrasound transducers

T. Ritter; K. K. Shung; W. S. Hackenberger; Haifeng Wang; Thomas R. Shrout

Performance of a high dielectric constant piezoelectric ceramic for ultrasound transducers

T. Ritter, K. K. Shung, W. S. Hackenberger, Haifeng Wang, Thomas R. Shrout

Materials Research Institute (MRI)

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

A high dielectric material suitable for medical imaging arrays has been investigated. Resonance techniques were used to characterize the complete set of electromechanical properties. Compared to Navy Type VI material a two-fold increase in clamped permittivity was observed while the coupling coefficient for linear array elements was almost identical (k₃₃′ of 0.68 vs 0.69 for Navy Type VI). Measurements indicated high coupling and permittivity at frequencies up to at least 60 MHz. Models for 1-3 composites incorporating this material revealed an effective thickness coupling of 0.68 at a 55% volume fraction of ceramic. Simulated device performance indicated a 4dB sensitivity increase for array elements incorporating this material when compared to conventional materials.

Original language	English (US)
Pages (from-to)	1295-1298
Number of pages	4
Journal	Proceedings of the IEEE Ultrasonics Symposium
Volume	2
State	Published - Dec 1 1999
Event	1999 IEEE Ultrasonics Symposium - Caesars Tahoe, NV, USA Duration: Oct 17 1999 → Oct 20 1999

All Science Journal Classification (ASJC) codes

Acoustics and Ultrasonics

Cite this

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title = "Performance of a high dielectric constant piezoelectric ceramic for ultrasound transducers",

abstract = "A high dielectric material suitable for medical imaging arrays has been investigated. Resonance techniques were used to characterize the complete set of electromechanical properties. Compared to Navy Type VI material a two-fold increase in clamped permittivity was observed while the coupling coefficient for linear array elements was almost identical (k33′ of 0.68 vs 0.69 for Navy Type VI). Measurements indicated high coupling and permittivity at frequencies up to at least 60 MHz. Models for 1-3 composites incorporating this material revealed an effective thickness coupling of 0.68 at a 55% volume fraction of ceramic. Simulated device performance indicated a 4dB sensitivity increase for array elements incorporating this material when compared to conventional materials.",

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note = "1999 IEEE Ultrasonics Symposium ; Conference date: 17-10-1999 Through 20-10-1999",

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T1 - Performance of a high dielectric constant piezoelectric ceramic for ultrasound transducers

AU - Ritter, T.

AU - Shung, K. K.

AU - Hackenberger, W. S.

AU - Wang, Haifeng

AU - Shrout, Thomas R.

PY - 1999/12/1

Y1 - 1999/12/1

N2 - A high dielectric material suitable for medical imaging arrays has been investigated. Resonance techniques were used to characterize the complete set of electromechanical properties. Compared to Navy Type VI material a two-fold increase in clamped permittivity was observed while the coupling coefficient for linear array elements was almost identical (k33′ of 0.68 vs 0.69 for Navy Type VI). Measurements indicated high coupling and permittivity at frequencies up to at least 60 MHz. Models for 1-3 composites incorporating this material revealed an effective thickness coupling of 0.68 at a 55% volume fraction of ceramic. Simulated device performance indicated a 4dB sensitivity increase for array elements incorporating this material when compared to conventional materials.

AB - A high dielectric material suitable for medical imaging arrays has been investigated. Resonance techniques were used to characterize the complete set of electromechanical properties. Compared to Navy Type VI material a two-fold increase in clamped permittivity was observed while the coupling coefficient for linear array elements was almost identical (k33′ of 0.68 vs 0.69 for Navy Type VI). Measurements indicated high coupling and permittivity at frequencies up to at least 60 MHz. Models for 1-3 composites incorporating this material revealed an effective thickness coupling of 0.68 at a 55% volume fraction of ceramic. Simulated device performance indicated a 4dB sensitivity increase for array elements incorporating this material when compared to conventional materials.

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M3 - Conference article

AN - SCOPUS:0033296140

SN - 1051-0117

VL - 2

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JO - Proceedings of the IEEE Ultrasonics Symposium

JF - Proceedings of the IEEE Ultrasonics Symposium

T2 - 1999 IEEE Ultrasonics Symposium

Y2 - 17 October 1999 through 20 October 1999

ER -

Performance of a high dielectric constant piezoelectric ceramic for ultrasound transducers

Abstract

All Science Journal Classification (ASJC) codes

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