Electromagnetic flow meter

Details Electromagnetic flow meter Electromagnetic flow meter

G - Physics

01

P

324/49

G01P 5/08 (2006.01)

Patent

CA 1091296

ABSTRACT OF THE DISCLOSURE An electromagnetic flow meter construction for substantially flush mounting within a surface past which a fluid is to flow. A pair of spaced electrodes in contact with the fluid are mounted along a line perpendicular to the fluid flow and an elongated electromagnet provides magnetic lines of force substantially perpendicular to both the fluid flow and the line of the electrodes to generate an electri- cal potential between the electrodes proportional to the fluid velocity. The electrode leads are oriented with respect to the electromagnet to minimize the guadrature voltage and the electromagnet is bifilar wound and utilized in a push-pull aternating current driving circuit. The electrode signals are applied to synchronous detector to generate a direct current voltage proportional to the fluid velocity. -1-

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