Ultrasonic transducer of monolithic array type

Details Ultrasonic transducer of monolithic array type Ultrasonic transducer of monolithic array type

1985-10-31

1987-09-08

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310327, 310359, 310366, 310367, H01L 4108

Patent

active

046926542

ABSTRACT:
On the front face of a piezoelectric plate, electrodes split into an array form are disposed. Thus, there is provided a transducer of monolithic array type having an array of transducer elements operating independently, without cutting the piezoelectric plate. On the rear face of the piezoelectric plate, a plurality of grooves are formed to attenuate the Lamb wave propagating in the face direction while being reflected at the front face and the rear face.

REFERENCES:
patent: 2540194 (1951-02-01), Ellett
patent: 3036231 (1962-05-01), Henry
patent: 3071841 (1963-01-01), Brussaard et al.
patent: 3854060 (1974-12-01), Cook
patent: 4173009 (1979-10-01), Toda
patent: 4211948 (1980-07-01), Smith et al.
patent: 4211949 (1980-07-01), Brisken et al.
patent: 4281550 (1981-08-01), Erikson
patent: 4399387 (1983-08-01), Kohji
patent: 4604543 (1986-08-01), Umemura et al.

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