Magnetic field generating device for electromagnetic flowmeter o

Details Magnetic field generating device for electromagnetic flowmeter o Magnetic field generating device for electromagnetic flowmeter o

1986-12-16

1988-04-12

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

By measuring electrical or magnetic properties

G01F 158

Patent

active

047366346

ABSTRACT:
A magnetic field generating device for an electromagnetic flowmeter of the residual magnetization type which comprises a pair of first yokes having one of their end faces disposed opposite to each other on both sides of a magnetic gap including a fluid conduit of a non-magnetic material, a core disposed between the other end faces of the first yokes, a coil wound around the core, and at least one second yoke in direct contact with at least one of the first yokes and in direct contact with the associated end face of the core. The second yokes are made of a magnetic material having low electrical conductivity and high permeability. The core has an axial length shorter than that of the coil.

REFERENCES:
patent: 4409846 (1983-10-01), Ueno
patent: 4601209 (1986-07-01), Amata

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