Ultrasonic atomizer with automatic control circuit

Details Ultrasonic atomizer with automatic control circuit Ultrasonic atomizer with automatic control circuit

1979-03-30

1981-04-28

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

239102, H01L 4108

Patent

active

042648378

ABSTRACT:
A method and a device for energizing piezo-electric ultra-sound transducers, wherein rectangular pulses of calibrated duration generate in an oscillation circuit of the transducer damped waves with a frequency equal to the natural frequency of the transducer and modulated at the recurrence frequency of the rectangular pulses.

REFERENCES:
patent: 3214101 (1965-10-01), Perron
patent: 3432691 (1969-03-01), Shoh
patent: 3489930 (1970-01-01), Shoh
patent: 3668486 (1972-06-01), Silver
patent: 3819961 (1974-06-01), Bourgeois et al.
patent: 3842340 (1974-10-01), Brandquist
patent: 3904896 (1975-09-01), Guntersdorfer
patent: 3967143 (1976-06-01), Watanabe et al.
patent: 3975650 (1976-08-01), Payne
patent: 4081706 (1978-03-01), Edelson
patent: 4168447 (1979-09-01), Bussiere
Ultrasonic Atomizer Incorporating a Self-actuating Liquid Supply, by E. P. Lierke, Ultrasonics, Oct. 1967, pp. 214-218.

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