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Proceedings Paper

Improving transducer performance using multiple active layers
Author(s): John A. Hossack; B. A. Auld
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Paper Abstract

The performance of a transducer possessing several piezoelectric layers is discussed. Techniques are presented for determining excitation functions so that a pre-defined transmission characteristic is obtained in an optimal manner. The performance of a multiple layer transducer in the reception mode is considered in detail. It is evident that a high degree of transmission and reception efficiency is attainable continuously from below the fundamental thickness mode resonance to above its third harmonic. This contrasts with conventional designs which possess a null at the second harmonic. Issues regarding the stability of the technique are addressed.

Paper Details

Date Published: 5 November 1992
PDF: 13 pages
Proc. SPIE 1733, New Developments in Ultrasonic Transducers and Transducer Systems, (5 November 1992); doi: 10.1117/12.130606
Show Author Affiliations
John A. Hossack, Stanford Univ. (United States)
B. A. Auld, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 1733:
New Developments in Ultrasonic Transducers and Transducer Systems
Frederick L. Lizzi, Editor(s)

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