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Proceedings Paper

Beamforming of ultrasonic transducers under different electrical conditions
Author(s): Behrooz Kanani
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Paper Abstract

The characterization and calibration of piezoelectric transducer beam profiles form an essential pre-requisite for ultrasonic applications in non-destructive evaluation (NDE) and medical imaging. Although considerable information is available concerning transducer temporal behavior and spatial field characteristics, the influence of the transmitting electronics, on transmitted pulse and transducer beamforming has been somewhat neglected. This work involves a study of electrical factors which control the beam profiles of wide band piezoelectric transducers usually used in medical and NDE application. The influence of the transmitting electronics, such as; turn-on time and matching circuitry, was examined with respect to pulse shape and frequency spectrum and, more importantly, transducer beam profiles. These factors and method of detection are shown to exert a considerable influence on measured beam profiles.

Paper Details

Date Published: 23 May 2003
PDF: 12 pages
Proc. SPIE 5035, Medical Imaging 2003: Ultrasonic Imaging and Signal Processing, (23 May 2003); doi: 10.1117/12.479883
Show Author Affiliations
Behrooz Kanani, B.K. Pulse Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 5035:
Medical Imaging 2003: Ultrasonic Imaging and Signal Processing
William F. Walker; Michael F. Insana, Editor(s)

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