Multi-element ultrasonic transducer

Details Multi-element ultrasonic transducer Multi-element ultrasonic transducer

1984-11-29

1986-08-05

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310358, 310359, 310366, H01L 4108

Patent

active

046045430

ABSTRACT:
A multi-element ultrasonic transducer in which elements are arrayed and in which a plate-shaped piezoelectric material has its one face formed with a uniform electrode and its other face formed alternately with electrodes corresponding to the respective elements and electrodes for separating the elements. These electrodes for the element separation are connected the uniform electrode opposed thereto and is fed with a ground potential. On the other hand, the electrodes corresponding to the respective elements are fed individually with transmitting and receiving signals independently of the elements so that the electronic scanning or focusing operations can be achieved.

REFERENCES:
patent: 2262966 (1941-11-01), Rohde
patent: 2306909 (1942-12-01), Sykes
patent: 3656180 (1972-04-01), Braun
patent: 3739304 (1973-06-01), Braun
patent: 4406967 (1983-09-01), Obara et al.
patent: 4424465 (1984-01-01), Ohigashi et al.
patent: 4473769 (1984-09-01), Nguyen

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