Electrical system for electromagnetically measuring flow of flui

Details Electrical system for electromagnetically measuring flow of flui Electrical system for electromagnetically measuring flow of flui

1974-03-27

1976-05-11

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

System

G01F 158

Patent

active

039554139

ABSTRACT:
An electrical system for measuring the speed of flow in a body of a fluid includes a current generator for energizing a coil and establishing a magnetic field in the body of the fluid. A current switching circuit connected between the current generator and the coil, cyclically reverses direction of current flow through the coil to reverse the magnetic field. The switching circuit includes energy storage capacitors for storing energy released by the coil during one half of each cycle and for returning the stored energy to the coil during the next half cycle. A control pulse generator supplies control pulses for cyclically controlling the reversal of current flow and the storage and release of energy in the capacitors.

REFERENCES:
patent: 3550446 (1970-12-01), Tucker et al.
patent: 3783687 (1974-01-01), Mannherz et al.

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