Micro-moulded randomised piezocomposites for high frequency ultrasound imaging

Y. Jiang; C. E. M. Demore; C. Meggs; C. Dunare; T. Stevenson; J. Bamber; S. Cochran; T.W. Button

doi:10.1109/ULTSYM.2012.0045

Micro-moulded randomised piezocomposites for high frequency ultrasound imaging

Y. Jiang, C. E. M. Demore, C. Meggs, C. Dunare, T. Stevenson, J. Bamber, S. Cochran, T.W. Button

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

8 Citations (Scopus)

Abstract

1-3 piezocomposites that can operate at over 30 MHz are in demand to improve spatial resolution on a sub-millimetre level for biomedical ultrasound imaging applications. However, the fabrication of such materials remains a challenge as ultrafine dimensions are required in conventional composite designs. We have previously reported the design of randomised composites to eliminate coupling to lateral modes and to relax overall dimensional constraints. In this work, practical fabrication of composites based on these designs has been realised by using a novel micro-moulding approach combining gel casting with soft lithography. Impedance spectra of randomised composites confirm their advantage for suppressing spurious modes. Pulse-echo responses of two completed transducers operating at 30 and 70 MHz have demonstrated their functional performance.

Original language	English
Title of host publication	2012 IEEE International Ultrasonics Symposium
Publisher	IEEE
Pages	1-4
Number of pages	4
ISBN (Print)	9781467345613
DOIs	https://doi.org/10.1109/ULTSYM.2012.0045
Publication status	Published - 2012
Event	2012 IEEE International Ultrasonics Symposium (IUS) - Dresden, Germany Duration: 7 Oct 2012 → 10 Oct 2012 http://ius2012.ifw-dresden.de/

Conference

Conference	2012 IEEE International Ultrasonics Symposium (IUS)
Abbreviated title	2012 IEEE IUS
Country/Territory	Germany
City	Dresden
Period	7/10/12 → 10/10/12
Internet address	http://ius2012.ifw-dresden.de/

Keywords

pulse-echo responses
Impedance
ultrafine dimensions
gel casting
Resonant frequency
submillimetre level
conventional composite designs
Educational institutions
microfabrication
biomedical ultrasonics
overall dimensional constraints
ultrasonic imaging
frequency 70 MHz
moulding
spatial resolution
electrochemical impedance spectroscopy
biomedical ultrasound imaging
casting
transducers
piezoelectric transducers
frequency 30 MHz
lateral modes
micromoulded randomised piezocomposites
novel micromoulding approach
practical fabrication
high frequency ultrasound imaging
soft lithography
micro-moulding
composite materials
Transducers
high-frequency ultrasound
Acoustics
suppressing spurious modes
piezoelectricity
1–3 composite
high-frequency effects
biomedical transducers
Ceramics
randomised composites
impedance spectra
ultrasonic transducers
Fabrication

ASJC Scopus subject areas

Acoustics and Ultrasonics
Ceramics and Composites

Access to Document

10.1109/ULTSYM.2012.0045

Cite this

@inproceedings{d81540175d28488aa63c1d170c7d0d4b,

title = "Micro-moulded randomised piezocomposites for high frequency ultrasound imaging",

abstract = "1-3 piezocomposites that can operate at over 30 MHz are in demand to improve spatial resolution on a sub-millimetre level for biomedical ultrasound imaging applications. However, the fabrication of such materials remains a challenge as ultrafine dimensions are required in conventional composite designs. We have previously reported the design of randomised composites to eliminate coupling to lateral modes and to relax overall dimensional constraints. In this work, practical fabrication of composites based on these designs has been realised by using a novel micro-moulding approach combining gel casting with soft lithography. Impedance spectra of randomised composites confirm their advantage for suppressing spurious modes. Pulse-echo responses of two completed transducers operating at 30 and 70 MHz have demonstrated their functional performance.",

keywords = "pulse-echo responses, Impedance, ultrafine dimensions, gel casting, Resonant frequency, submillimetre level, conventional composite designs, Educational institutions, microfabrication, biomedical ultrasonics, overall dimensional constraints, ultrasonic imaging, frequency 70 MHz, moulding, spatial resolution, electrochemical impedance spectroscopy, biomedical ultrasound imaging, casting, transducers, piezoelectric transducers, frequency 30 MHz, lateral modes, micromoulded randomised piezocomposites, novel micromoulding approach, practical fabrication, high frequency ultrasound imaging, soft lithography, micro-moulding, composite materials, Transducers, high-frequency ultrasound, Acoustics, suppressing spurious modes, piezoelectricity, 1–3 composite, high-frequency effects, biomedical transducers, Ceramics, randomised composites, impedance spectra, ultrasonic transducers, Fabrication",

author = "Y. Jiang and Demore, {C. E. M.} and C. Meggs and C. Dunare and T. Stevenson and J. Bamber and S. Cochran and T.W. Button",

year = "2012",

doi = "10.1109/ULTSYM.2012.0045",

language = "English",

isbn = "9781467345613",

pages = "1--4",

booktitle = "2012 IEEE International Ultrasonics Symposium",

publisher = "IEEE",

note = "2012 IEEE International Ultrasonics Symposium (IUS), 2012 IEEE IUS ; Conference date: 07-10-2012 Through 10-10-2012",

url = "http://ius2012.ifw-dresden.de/",

}

TY - GEN

T1 - Micro-moulded randomised piezocomposites for high frequency ultrasound imaging

AU - Jiang, Y.

AU - Demore, C. E. M.

AU - Meggs, C.

AU - Dunare, C.

AU - Stevenson, T.

AU - Bamber, J.

AU - Cochran, S.

AU - Button, T.W.

PY - 2012

Y1 - 2012

N2 - 1-3 piezocomposites that can operate at over 30 MHz are in demand to improve spatial resolution on a sub-millimetre level for biomedical ultrasound imaging applications. However, the fabrication of such materials remains a challenge as ultrafine dimensions are required in conventional composite designs. We have previously reported the design of randomised composites to eliminate coupling to lateral modes and to relax overall dimensional constraints. In this work, practical fabrication of composites based on these designs has been realised by using a novel micro-moulding approach combining gel casting with soft lithography. Impedance spectra of randomised composites confirm their advantage for suppressing spurious modes. Pulse-echo responses of two completed transducers operating at 30 and 70 MHz have demonstrated their functional performance.

AB - 1-3 piezocomposites that can operate at over 30 MHz are in demand to improve spatial resolution on a sub-millimetre level for biomedical ultrasound imaging applications. However, the fabrication of such materials remains a challenge as ultrafine dimensions are required in conventional composite designs. We have previously reported the design of randomised composites to eliminate coupling to lateral modes and to relax overall dimensional constraints. In this work, practical fabrication of composites based on these designs has been realised by using a novel micro-moulding approach combining gel casting with soft lithography. Impedance spectra of randomised composites confirm their advantage for suppressing spurious modes. Pulse-echo responses of two completed transducers operating at 30 and 70 MHz have demonstrated their functional performance.

KW - pulse-echo responses

KW - Impedance

KW - ultrafine dimensions

KW - gel casting

KW - Resonant frequency

KW - submillimetre level

KW - conventional composite designs

KW - Educational institutions

KW - microfabrication

KW - biomedical ultrasonics

KW - overall dimensional constraints

KW - ultrasonic imaging

KW - frequency 70 MHz

KW - moulding

KW - spatial resolution

KW - electrochemical impedance spectroscopy

KW - biomedical ultrasound imaging

KW - casting

KW - transducers

KW - piezoelectric transducers

KW - frequency 30 MHz

KW - lateral modes

KW - micromoulded randomised piezocomposites

KW - novel micromoulding approach

KW - practical fabrication

KW - high frequency ultrasound imaging

KW - soft lithography

KW - micro-moulding

KW - composite materials

KW - Transducers

KW - high-frequency ultrasound

KW - Acoustics

KW - suppressing spurious modes

KW - piezoelectricity

KW - 1–3 composite

KW - high-frequency effects

KW - biomedical transducers

KW - Ceramics

KW - randomised composites

KW - impedance spectra

KW - ultrasonic transducers

KW - Fabrication

U2 - 10.1109/ULTSYM.2012.0045

DO - 10.1109/ULTSYM.2012.0045

M3 - Conference contribution

SN - 9781467345613

SP - 1

EP - 4

BT - 2012 IEEE International Ultrasonics Symposium

PB - IEEE

T2 - 2012 IEEE International Ultrasonics Symposium (IUS)

Y2 - 7 October 2012 through 10 October 2012

ER -

Micro-moulded randomised piezocomposites for high frequency ultrasound imaging

Abstract

Conference

Keywords

ASJC Scopus subject areas

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Cite this