Finite element study on 1-D array transducer design

Author

Qi, Wenkang ; Cao, Wenwu

Author_Institution

GE Diasonics, San Jose, CA, USA

Volume

47

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

949

Lastpage

955

Abstract

A comprehensive study using finite element analysis (FEA) was performed on 1-D transducer arrays. Crosstalk reduction, subdicing effects, directivity pattern, and baffle effects were quantified numerically. It was found that the directivity pattern strongly depends on the transducer size and kerf filling materials. The FEA is particularly powerful in revealing the inhomogeneous nature of the vibrational characteristics of the transducer surface, which allows more accurate beam pattern computation in 3-D. The simulated directivity pattern also was satisfactorily verified by experimental measurements.

Keywords

crosstalk; finite element analysis; ultrasonic transducer arrays; 1-D array transducer design; 1-D transducer arrays; FEA; baffle effects; crosstalk reduction; directivity pattern; finite element analysis; finite element study; inhomogeneous vibrational characteristic; kerf filling materials; simulated directivity pattern; subdicing effects; transducer size; Acoustic transducers; Crosstalk; Field emitter arrays; Finite element methods; Impedance; Performance analysis; Phased arrays; Ultrasonic imaging; Ultrasonic transducer arrays; Ultrasonic transducers;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/58.852078

Filename

852078