Ultrasonic signal generator

Details Ultrasonic signal generator Ultrasonic signal generator

1974-05-30

1976-01-06

Budd, Mark O.

Electrical generator or motor structure

Educational or construction units or kits

318116, 310 26, H01L 4110

Patent

active

039315339

ABSTRACT:
A controllable frequency ultrasonic signal generator for driving an ultrasonic transducer via a switching type output circuit for the efficient transfer of energy thereto. The signal generator includes a phase lock loop feedback control for locking the operation of the oscillator to the resonant frequency of the transducer for following variations in transducer resonant frequency due to loading changes, temperature changes, tool tip variations, and the like.

REFERENCES:
patent: 2498760 (1950-02-01), Kreithen
patent: 2752512 (1956-06-01), Sarratt
patent: 2917691 (1959-12-01), De Prisco et al.
patent: 3489930 (1970-01-01), Shoh
patent: 3629726 (1971-12-01), Popescu
patent: 3668486 (1972-06-01), Silver
patent: 3694713 (1972-09-01), Duren et al.
patent: 3727112 (1973-04-01), Popescu

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