A comparison of CMUTs and piezoelectric transducer elements for 2D medical imaging based on conventional simulation models

This work compares CMUT and piezoelectric transducer technology for a typical 1D 7.5-MHz medical transducer array element. The comparison is based on the Redwood model of the piezoelectric transducer and a spring-mass-damper model for the CMUT. The simulated CMUT shows over twice the fractional band...

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Bibliographic Details
Published in2011 IEEE International Ultrasonics Symposium pp. 100 - 103
Main Author Wygant, I.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2011
Subjects
Bandwidth
Sonar equipment
Transducers
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Summary:This work compares CMUT and piezoelectric transducer technology for a typical 1D 7.5-MHz medical transducer array element. The comparison is based on the Redwood model of the piezoelectric transducer and a spring-mass-damper model for the CMUT. The simulated CMUT shows over twice the fractional bandwidth of the piezoelectric transducer but one-half the sensitivity and lower noise-equivalent-voltage. Experimental data from a CMUT array element generally confirms the CMUT simulations although shows lower source pressure and bandwidth.
ISBN:9781457712531
1457712539
ISSN:1051-0117
DOI:10.1109/ULTSYM.2011.0025