Quasi-self focusing high intensity and large power...

Details Quasi-self focusing high intensity and large power... Quasi-self focusing high intensity and large power...

2004-12-27

2009-10-13

Tarcza, Thomas H (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Transmitter systems

With beam forming, shaping, steering, or scanning

Reexamination Certificate

active

07602672

ABSTRACT:
A quasi-self focusing high strength large power ultrasonic transducer including a backing and a plurality of piezo-electric crystal sheets is disclosed. The backing has a double layer structure with an air cavity between the layers. At least four piezoelectric crystal sheets of the plurality of piezo-electric crystal sheets are adhered on an inside focusing face of the backing with a protective layer covering the surface of the sheets.

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Donald Ricketts, “Model for Piezoelectric Polymer Flexural Plate Hydrophone”, Oct 1981, Acoustic Society of America pp. 929-935.

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