Calculation of pressure fields from arbitrarily shaped, apodized, and excited ultrasound transducers

Author

Jensen, Jørgen Arendt ; Svendsen, Niels Bruun

Author_Institution

Electron. Inst., Tech. Univ. of Denmark, Lyngby, Denmark

Volume

39

Issue

2

fYear

1992

fDate

3/1/1992 12:00:00 AM

Firstpage

262

Lastpage

267

Abstract

A method for simulation of pulsed pressure fields from arbitrarily shaped, apodized and excited ultrasound transducers is suggested. It relies on the Tupholme-Stepanishen method for calculating pulsed pressure fields, and can also handle the continuous wave and pulse-echo case. The field is calculated by dividing the surface into small rectangles and then Summing their response. A fast calculation is obtained by using the far-field approximation. Examples of the accuracy of the approach and actual calculation times are given.<>

Keywords

acoustic field; acoustic imaging; acoustic intensity; ultrasonic transducers; Tupholme-Stepanishen method; apodised transducers; arbitrarily shaped transducers; continuous wave; excited ultrasound transducers; far-field approximation; fast calculation; pulse-echo; pulsed pressure fields; simulation; Biomedical imaging; Biomedical transducers; Closed-form solution; Geometry; Partial differential equations; Pistons; Pulse shaping methods; Ultrasonic imaging; Ultrasonic transducers;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/58.139123

Filename

139123