Ultrasonic wave transducer

Details Ultrasonic wave transducer Ultrasonic wave transducer

1977-10-21

1979-10-30

Tudor, Harold

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

310334, 367152, H04B 1300

Patent

active

041730097

ABSTRACT:
An ultrasonic wave transducer which can generate a convergent ultrasonic sound beam. The transducer comprises liquid contained in a housing, a piezoelectric material in said liquid, and interdigital electrode arranged on the surface of said piezoelectric material, an alternating voltage being applied to said interdigital electrode.

REFERENCES:
patent: 3343105 (1967-09-01), Vander Pauw
patent: 3401360 (1968-09-01), Schulz-DuBois
patent: 3745812 (1973-07-01), Korpel
Split Interdigital Transducers, E. Rabinowicz, IBM, vol. 13, No. 11, Apr. 1971.

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