Electromagnetic fluid flowmeter operable with free fluid surface

Details Electromagnetic fluid flowmeter operable with free fluid surface Electromagnetic fluid flowmeter operable with free fluid surface

1977-05-04

1979-04-03

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

System

G01F 158

Patent

active

041470583

ABSTRACT:
An electromagnetic fluid flowmeter wherein two arc-shaped, circular segment electrode plates B.sub.1, B.sub.2 are disposed horizontally opposite each other on the internal periphery of a tubular conduit M, and are separated by vertically opposed, convex insulators D.sub.1, D.sub.2. The respective dimensional relationships of the electrode plates and insulators, and the flux pattern of the magnetic field within the conduit, are geometrically determined and configured such that the induced current flow between the electrode plates is always proportional to the fluid flow rate, even when a free fluid surface exists within the conduit and regardless of the level of the free surface.

REFERENCES:
patent: 3589186 (1971-06-01), Bourg et al.
patent: 3991612 (1976-11-01), Mannherz et al.
patent: 4036052 (1977-07-01), Searle

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