Improving transducer performance using multiple active layers

John A. Hossack; B. A. Auld

doi:10.1117/12.130606

5 November 1992 Improving transducer performance using multiple active layers

John A. Hossack, B. A. Auld

Proceedings Volume 1733, New Developments in Ultrasonic Transducers and Transducer Systems; (1992) https://doi.org/10.1117/12.130606
Event: San Diego '92, 1992, San Diego, CA, United States

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.

Citation Download Citation

John A. Hossack and B. A. Auld "Improving transducer performance using multiple active layers", Proc. SPIE 1733, New Developments in Ultrasonic Transducers and Transducer Systems, (5 November 1992); https://doi.org/10.1117/12.130606

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