Title :
Optimizing transducer design for medical imaging
Author :
McKeighen, Ronald E.
Author_Institution :
Adv. Technol. Lab., Bothell, WA, USA
Abstract :
A design approach for obtaining medical ultrasound transducers of high sensitivity, broad bandwidth, short impulse response, and good resolution is presented. It takes into account the effect of back-side loading on the choice of the quarter-wave matching layer that is applied to the front side of a PZT (lead zinc titanate) ceramic. Piston transducers and subdiced arrays are discussed. The impulse response and frequency bandpass are illustrated
Keywords :
acoustic imaging; biomedical equipment; biomedical ultrasonics; patient diagnosis; ultrasonic transducers; PZT ceramic; back-side loading; frequency bandpass; image resolution; impulse response; medical imaging; medical ultrasound transducers; quarter-wave matching layer; subdiced arrays; transducer design optimisation piston transducers; Bandwidth; Bioceramics; Biomedical imaging; Biomedical transducers; Design optimization; Pistons; Titanium compounds; Ultrasonic imaging; Ultrasonic transducers; Zinc;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.95790
