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 |
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Title of host publication | Proceedings of the 2009 IEEE Ultrasonics Symposium |
Publisher | IEEE Computer Society |
ISBN (Electronic) | 9781424443901 |
ISBN (Print) | 9781424443895 |
DOIs | |
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) |
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Abbreviated title | 2009 IEEE IUS |
Country/Territory | Italy |
City | Rome |
Period | 20/09/09 → 23/09/09 |
Internet address |