Micro-moulded Randomised Piezocomposites for High Frequency Ultrasound Imaging

Jiang, Y., Demore, C.E.M., Meggs, C., Dunare, C., Stevenson, T., Bamber, J., Cochran, S. and Button, T.W. (2012) Micro-moulded Randomised Piezocomposites for High Frequency Ultrasound Imaging. In: 2012 IEEE International Ultrasonics Symposium (IUS), Dresden, Germany, 7-10 Oct 2012, ISBN 9781467345620 (doi: 10.1109/ULTSYM.2012.0045)

Full text not currently available from Enlighten.

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.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cochran, Professor Sandy and Demore, Dr Christine
Authors: Jiang, Y., Demore, C.E.M., Meggs, C., Dunare, C., Stevenson, T., Bamber, J., Cochran, S., and Button, T.W.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
ISSN:1051-0117
ISBN:9781467345620

University Staff: Request a correction | Enlighten Editors: Update this record