Magnet system for electromagnetic flowmeter

Details Magnet system for electromagnetic flowmeter Magnet system for electromagnetic flowmeter

1978-10-03

1980-02-05

Myracle, Jerry W.

Measuring and testing

Volume or rate of flow

System

G01F 158

Patent

active

041866002

ABSTRACT:
An electromagnetic flowmeter in which a fluid to be metered is conducted through a flow tube formed of a non-magnetizable, weldable metal pipe having an insulating liner therein and provided with a pair of diametrically-opposed electrodes. The fluid passing through the tube intercepts a magnetic field to induce a signal in the electrodes indicative of flow rate. The magnetic field is established by a magnet system excited by a low-frequency alternating or pulsating current, the system including at least one solid core of ferromagnetic material about which is wound an excitation coil. The core has its inner face welded to the outer surface of the pipe to provide a highly stable magnet system.

REFERENCES:
patent: 2929247 (1960-03-01), Sturgeon
patent: 3490282 (1970-01-01), Wada
patent: 3827298 (1974-08-01), Kawamata et al.

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