Unitary electromagnetic flowmeter having molded electrodes

Details Unitary electromagnetic flowmeter having molded electrodes Unitary electromagnetic flowmeter having molded electrodes

1984-09-28

1986-02-04

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

By measuring electrical or magnetic properties

G01F 158

Patent

active

045677751

ABSTRACT:
A highly compact electromagnetic flowmeter unit interposable between the flanged ends of upstream and downstream line pipes for metering fluid passing through the line. The flowmeter is constituted by a cylindrical casing of ferromagnetic material within which a pair of electromagnet coils is supported at opposed positions along a diametrical axis normal to the longitudinal axis of the casing, the longitudinal axis passing through the central flow passage of an annular pressure vessel. The vessel, which is formed of high-strength insulating epoxy material, is molded within the casing and encapsulates the coils as well as a pair of pre-cast electrodes formed of conductive epoxy material disposed at diametrically-opposed positions with respect to the flow passage along a transverse axis at right angles to the coil axis to define a unitary structure. The epoxy of the electrodes is compatible with that of the vessel, whereby a fluid-impermeable bond is formed therebetween. The unit is compressible between the end flanges of the pipes by bridging bolts that pass through bore holes in the pressure vessel or lie outside the casing to encage the unit.

REFERENCES:
patent: 4098118 (1978-07-01), Schmoock
patent: 4388834 (1983-06-01), Schmoock

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