Tapered wave transducer

Details Tapered wave transducer Tapered wave transducer

1981-12-24

1984-04-17

Miller, J. D.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310335, 310365, H01L 4108

Patent

active

044437331

ABSTRACT:
The invention is a transducer which acts with an acoustical lens to produce a highly focussed beam and attenuated side lobe waves. The transducer comprises a resistive electrode which attentates electrical signals applied to and emanating from the peripheral region of the transducing element.

REFERENCES:
patent: 2939106 (1960-05-01), Mason
patent: 2956184 (1960-10-01), Pollack
patent: 3382381 (1968-05-01), Horton
patent: 4155259 (1979-05-01), Engeler
patent: 4276491 (1981-06-01), Daniel
patent: 4321696 (1982-03-01), Kanda

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