Multi-frequency ultrasonic transducer

Details Multi-frequency ultrasonic transducer Multi-frequency ultrasonic transducer

1983-09-22

1984-12-25

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310322, 367157, H01L 4108

Patent

active

044906404

ABSTRACT:
An ultrasonic transducer consisting of three piezoelectric element couples sandwiched between four metal terminals. Each piezoelectric couple has two piezoelectric elements separated by an electrode. The piezoelectric couples and the metal terminals are secured together by a bolt. The transducer exhibits various combinations of resonant frequencies in its impedance-frequency characteristic as determined between various combinations of the electrodes and terminals.

REFERENCES:
patent: 2921134 (1960-01-01), Greenspan et al.
patent: 3292018 (1966-12-01), Clynes
patent: 3689783 (1972-09-01), Williams
patent: 3872330 (1975-01-01), Miller et al.
patent: 3922572 (1975-11-01), Cook et al.

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