Drive circuit for ultrasonic level gauge

Details Drive circuit for ultrasonic level gauge Drive circuit for ultrasonic level gauge

1976-03-22

1977-07-05

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307215, 307282, 307225R, 328103, 328119, H03K 501, H03K 1300

Patent

active

040342379

ABSTRACT:
An AC drive circuit for exciting the transducer of an ultrasonic level gauge. The circuit includes a gate-controlled astable multivibrator that generates pulses of constant amplitude and constant frequency. These pulses are applied to a counter arrangement adapted to equalize the total amount of positive and negative half waves in the AC drive power derived from the output of the astable multivibrator.

REFERENCES:
patent: 3002142 (1961-09-01), Jensen
patent: 3050708 (1962-08-01), VAN Alstyne et al.
patent: 3476957 (1969-11-01), Duckworth
patent: 3660766 (1972-05-01), Hilliard
patent: 3838414 (1974-09-01), Wiles
patent: 3982193 (1976-09-01), Maringer

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