The paper reports the experimental investigation of the behavior of 2-2 Lead Zirconate Titanate (PZT)-polymer composite transducers array for clinical ultrasound equipments. Several 2-2 plate composites having the same dicing pitch of 0.11 mm and different volume fractions were manufactured and investigated. Measurements were performed through different techniques such as electrical impedance, pulse-echo, and Laser Doppler Vibrometer. With the last one, maps of the surface displacement were presented relative to thickness mode and first lateral mode resonance frequencies. The transducers with volume fractions of the 40% resulted markedly inefficient, whereas the largest bandwidth and best band shape were achieved by the 50%. (C) 2013 AIP Publishing LLC.
Note: Comparative experimental studies on the performance of 2-2 piezocomposite for medical ultrasound transducers / Marinozzi, Franco; Bini, Fabiano; A., Biagioni; A., Grandoni; L., Spicci. - In: REVIEW OF SCIENTIFIC INSTRUMENTS. - ISSN 0034-6748. - STAMPA. - 84:9(2013), p. 096110. [10.1063/1.4822117]
Note: Comparative experimental studies on the performance of 2-2 piezocomposite for medical ultrasound transducers
MARINOZZI, Franco;BINI, FABIANO;
2013
Abstract
The paper reports the experimental investigation of the behavior of 2-2 Lead Zirconate Titanate (PZT)-polymer composite transducers array for clinical ultrasound equipments. Several 2-2 plate composites having the same dicing pitch of 0.11 mm and different volume fractions were manufactured and investigated. Measurements were performed through different techniques such as electrical impedance, pulse-echo, and Laser Doppler Vibrometer. With the last one, maps of the surface displacement were presented relative to thickness mode and first lateral mode resonance frequencies. The transducers with volume fractions of the 40% resulted markedly inefficient, whereas the largest bandwidth and best band shape were achieved by the 50%. (C) 2013 AIP Publishing LLC.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
