Magnetic flow meter nulling system

Details Magnetic flow meter nulling system Magnetic flow meter nulling system

1976-05-19

1978-08-15

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

System

G01F 160

Patent

active

041063376

ABSTRACT:
A magnetic flow meter nulling system wherein each electrode has connected thereto an in-phase voltage adjusting network and a phase-shifted voltage adjusting network. In particular, each electrode is connected in a loop with a slide wire of a potentiometer. The slider of one potentiometer is connected directly to the measuring circuit whereas the other potentiometer's slide wire has the slide wire of a third potentiometer connected across, the said other potentiometer having its slides connected directly to the measuring circuit and the slider of the third potentiometer being connected to the measuring circuit via a capacitor.

REFERENCES:
patent: 2696737 (1954-12-01), Mittelmann
patent: 3575051 (1971-04-01), Moore
patent: 3802263 (1974-04-01), Krechmery et al.
patent: 3977246 (1976-08-01), Watanabe

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