Electronic drive system and technique for ultrasonic transducer

Details Electronic drive system and technique for ultrasonic transducer Electronic drive system and technique for ultrasonic transducer

1977-07-11

1980-06-17

Michell, Robert W.

Measuring and testing

Vibration

By mechanical waves

328 14, 328187, 73632, 128660, A61B 1000

Patent

active

042077729

ABSTRACT:
Side lobe suppression is optimized in an ultrasonic generator by actively driving the transducer crystal with a signal which varies in magnitude. In a preferred embodiment a phased array of annular electrodes on a transducer crystal are individually driven with voltages having a predetermined wave form. The drive voltages are produced by generating a periodic signal and thereafter modulating this signal to provide an envelope which has the desired wave form.

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