Finite element analysis on impedance matching layer thickness

Author

Draheim, Mark R. ; Cao, Wenwu

Author_Institution

Mater. Res. Lab., Pennsylvania State Univ., University Park, PA, USA

Volume

2

fYear

1996

fDate

18-21 Aug 1996

Firstpage

1015

Abstract

A 0-3 alumina-HYSOL epoxy composite was made with the volume fraction of alumina varied from 0 to 40% and the physical properties were measured. These properties were used as input values for the matching layer properties in a finite element model of a 5 MHz PZT-5H transducer. The thickness of the matching layer was varied and corresponding transmitted power into the water was calculated and compared to that of the quarter wave length thickness matching. The optimum matching layer thickness for this model was found to be 11% less than λ/4

Keywords

acoustic impedance; acoustic transducers; finite element analysis; piezoelectric transducers; ultrasonic transducers; 0-3 alumina-HYSOL epoxy composite; 5 MHz; Al₂O₃; PZT; PZT-5H transducer; PbZrO3TiO3; finite element model; impedance matching layer thickness; Acoustic measurements; Acoustic propagation; Acoustic transducers; Composite materials; Finite element methods; Impedance matching; Material properties; Pulse measurements; Ultrasonic transducers; Volume measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 1996. ISAF '96., Proceedings of the Tenth IEEE International Symposium on

Conference_Location

East Brunswick, NJ

Print_ISBN

0-7803-3355-1

Type

conf

DOI

10.1109/ISAF.1996.598201

Filename

598201