Expanded range magnetic flow meter

Details Expanded range magnetic flow meter Expanded range magnetic flow meter

1988-09-13

1990-07-03

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

By measuring electrical or magnetic properties

G01F 158

Patent

active

049380737

ABSTRACT:
An expanded range magnetic flowmeter is provided and includes an insertion device which can vary the velocity of a conductive fluid flowing therethrough. The insert expands the range of the flowmeter by maintaining a minimum fluid velocity through a flow tube. The flow tube includes diametrically opposed electrodes disposed therein which are connected to a voltage measuring device. A magnetic field is placed at a 90.degree. angle to the flow of the conductive fluid such that a voltage is generated and measured as the conductive fluid flows through the tube.

REFERENCES:
patent: 2696737 (1954-12-01), Mittelmann
patent: 3219851 (1965-11-01), Kidwell
patent: 3323364 (1967-06-01), Hunter
patent: 3406569 (1968-10-01), Rohmann
patent: 3745824 (1973-07-01), Mannherz
patent: 3926049 (1975-12-01), Seabode et al.
patent: 4117720 (1978-10-01), Simonsen et al.
patent: 4524627 (1985-06-01), Yamasaki et al.
Hindes, Charles S., "Development of an Electromagnetic Water Current Velocity Meter", Oceanology International, vol. 72, pp. 44-50.

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