1-3 Piezocomposite design optimised for high frequency kerfless transducer arrays

C.E.M. Démoré; S. Cochran; L. Garcia-Gancedo; F. Dauchy; T.W. Button; J.C. Bamber

doi:10.1109/ULTSYM.2009.5442007

1-3 Piezocomposite design optimised for high frequency kerfless transducer arrays

C.E.M. Démoré, S. Cochran, L. Garcia-Gancedo, F. Dauchy, T.W. Button, J.C. Bamber

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

12 Citations (Scopus)

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Abstract

Piezocomposites that can operate at frequencies above 30 MHz without spurious modes are required in order to develop sufficiently sensitive high frequency arrays for high resolution imaging. However, scaling down of conventional piezocomposite fabrication techniques becomes increasingly difficult as dimensions decrease with increasing frequency. The approach presented here is to use micro-moulded 1-3 piezocomposites and a distribution of piezoelectric segment size and separation. Innovative approaches to composite pattern design, based on a randomized spatial distribution, are presented. Micro-moulding techniques are shown to be suitable for fabricating composites with dimensions required for high frequency composites. Randomized piezocomposite patterns are modeled and are shown to suppress spurious modes.

Original language	English
Title of host publication	Proceedings of the 2009 IEEE Ultrasonics Symposium
Publisher	IEEE Computer Society
ISBN (Electronic)	9781424443901
ISBN (Print)	9781424443895
DOIs	https://doi.org/10.1109/ULTSYM.2009.5442007
Publication status	Published - 2009
Event	2009 IEEE International Ultrasonics Symposium (IUS) - Rome, Italy Duration: 20 Sept 2009 → 23 Sept 2009 http://ewh.ieee.org/conf/ius_2009/

Conference

Conference	2009 IEEE International Ultrasonics Symposium (IUS)
Abbreviated title	2009 IEEE IUS
Country/Territory	Italy
City	Rome
Period	20/09/09 → 23/09/09
Internet address	http://ewh.ieee.org/conf/ius_2009/

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10.1109/ULTSYM.2009.5442007

IUS2009 HighFrequencyComposites DemoreSubmitted manuscript, 2.21 MB

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title = "1-3 Piezocomposite design optimised for high frequency kerfless transducer arrays",

abstract = "Piezocomposites that can operate at frequencies above 30 MHz without spurious modes are required in order to develop sufficiently sensitive high frequency arrays for high resolution imaging. However, scaling down of conventional piezocomposite fabrication techniques becomes increasingly difficult as dimensions decrease with increasing frequency. The approach presented here is to use micro-moulded 1-3 piezocomposites and a distribution of piezoelectric segment size and separation. Innovative approaches to composite pattern design, based on a randomized spatial distribution, are presented. Micro-moulding techniques are shown to be suitable for fabricating composites with dimensions required for high frequency composites. Randomized piezocomposite patterns are modeled and are shown to suppress spurious modes.",

author = "C.E.M. D{\'e}mor{\'e} and S. Cochran and L. Garcia-Gancedo and F. Dauchy and T.W. Button and J.C. Bamber",

year = "2009",

doi = "10.1109/ULTSYM.2009.5442007",

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booktitle = "Proceedings of the 2009 IEEE Ultrasonics Symposium",

publisher = "IEEE Computer Society",

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AU - Démoré, C.E.M.

AU - Cochran, S.

AU - Garcia-Gancedo, L.

AU - Dauchy, F.

AU - Button, T.W.

AU - Bamber, J.C.

PY - 2009

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N2 - Piezocomposites that can operate at frequencies above 30 MHz without spurious modes are required in order to develop sufficiently sensitive high frequency arrays for high resolution imaging. However, scaling down of conventional piezocomposite fabrication techniques becomes increasingly difficult as dimensions decrease with increasing frequency. The approach presented here is to use micro-moulded 1-3 piezocomposites and a distribution of piezoelectric segment size and separation. Innovative approaches to composite pattern design, based on a randomized spatial distribution, are presented. Micro-moulding techniques are shown to be suitable for fabricating composites with dimensions required for high frequency composites. Randomized piezocomposite patterns are modeled and are shown to suppress spurious modes.

AB - Piezocomposites that can operate at frequencies above 30 MHz without spurious modes are required in order to develop sufficiently sensitive high frequency arrays for high resolution imaging. However, scaling down of conventional piezocomposite fabrication techniques becomes increasingly difficult as dimensions decrease with increasing frequency. The approach presented here is to use micro-moulded 1-3 piezocomposites and a distribution of piezoelectric segment size and separation. Innovative approaches to composite pattern design, based on a randomized spatial distribution, are presented. Micro-moulding techniques are shown to be suitable for fabricating composites with dimensions required for high frequency composites. Randomized piezocomposite patterns are modeled and are shown to suppress spurious modes.

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DO - 10.1109/ULTSYM.2009.5442007

M3 - Conference contribution

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BT - Proceedings of the 2009 IEEE Ultrasonics Symposium

PB - IEEE Computer Society

T2 - 2009 IEEE International Ultrasonics Symposium (IUS)

Y2 - 20 September 2009 through 23 September 2009

ER -

1-3 Piezocomposite design optimised for high frequency kerfless transducer arrays

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