Ultrasonic transmitting and receiving device

Details Ultrasonic transmitting and receiving device Ultrasonic transmitting and receiving device

1982-03-12

1984-06-26

Farley, Richard A.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

179110A, 310321, 310332, 367140, H04R 1710

Patent

active

044568487

ABSTRACT:
An ultrasonic transmitting and receiving device comprises a bimorph vibrator including two piezoelectric elements each connected electrically to the corresponding one of a plurality of terminals for receiving and delivering electric signals and a metallic member made of a thin metal plate and including a flat plate portion and a cylindrical portion extending from the circumferential periphery of the flat plate portion. The flat plate portion is placed between the piezoelectric elements and the cylindrical portion increases in outer diameter as it becomes distant from the flat plate portion.

REFERENCES:
patent: 3675053 (1972-07-01), Mifune et al.
patent: 3707131 (1972-12-01), Massa

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