Piezoceramics for high frequency (20-100 MHz) transducers and arrays

Author

Zipparo, Michael J. ; Shung, K. Kirk ; Shrout, Thomas R.

Author_Institution

Pennsylvania State Univ., University Park, PA, USA

Volume

2

fYear

1997

fDate

5-8 Oct 1997

Firstpage

1663

Abstract

The design and fabrication of ultrasound transducers which operate above 20 MHz is discussed in relation to piezoelectric materials and their operation at high frequencies. Measurements are made of fine scale composites with operating frequencies up to 50 MHz. Simulations are presented for plate-mode and composite-mode 2 mm diameter single element transducers and the difference in performance between various materials is discussed. Composite-mode transducers are shown to result in wider bandwidth and shorter pulse length

Keywords

biomedical transducers; biomedical ultrasonics; composite materials; piezoceramics; piezoelectric transducers; ultrasonic transducer arrays; ultrasonic transducers; 2 mm; 20 to 100 MHz; arrays; bandwidth; composite-mode; design; fabrication; fine scale composites; high frequency transducers; piezoceramics; piezoelectric materials; plate-mode; pulse length; single element transducers; ultrasound transducers; Acoustic materials; Acoustic transducers; Biological materials; Dielectric materials; Focusing; Frequency; Grain size; Piezoelectric materials; Piezoelectric transducers; Ultrasonic transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1997. Proceedings., 1997 IEEE

Conference_Location

Toronto, Ont.

ISSN

1051-0117

Print_ISBN

0-7803-4153-8

Type

conf

DOI

10.1109/ULTSYM.1997.663315

Filename

663315