Unitary electromagnetic flowmeter

Details Unitary electromagnetic flowmeter Unitary electromagnetic flowmeter

1977-06-29

1980-01-01

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

System

G01F 158

Patent

active

041810180

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 ferromagnetic ring within which a pair of electromagnet coils is supported at opposed positions along a diametrical axis normal to the longitudinal axis of the ring, the longitudinal axis passing through the central flow passage of an annular pressure vessel. The vessel, which is formed of high-strength insulating material, is molded within the ring and encapsulates the coils as well as a pair of electrodes 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 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 ring to encage the unit.

REFERENCES:
patent: 3490282 (1970-01-01), Wada
patent: 3636764 (1972-01-01), Funfstuck
patent: 3745824 (1973-07-01), Mannherz
patent: 3824856 (1974-07-01), Yard
patent: 3981190 (1976-09-01), Vidmantas
patent: 4065965 (1978-01-01), Ackerman et al.

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