Measuring and testing – Volume or rate of flow – By measuring electrical or magnetic properties
Patent
1984-06-27
1985-09-10
Woodiel, Donald O.
Measuring and testing
Volume or rate of flow
By measuring electrical or magnetic properties
7386114, 7386116, G01F 158
Patent
active
045398534
ABSTRACT:
A magnetic flowmeter which includes a spool formed by a metallizable ceramic through which the fluid to be metered is conducted. The outer surface of the spool is metallized in its central region to define a pair of metering electrodes at diametrically-opposed positions, an electromagnetic field being established within the spool whereby when the flowing fluid intercepts this field, an emf is induced therein to produce a signal at the metering electrodes which is a function of flow rate. Overlying each metering electrode and projecting from the spool is a ceramic block whose outer surface is metallized to define a shield electrode which covers the metering electrode.
REFERENCES:
patent: 2766621 (1956-10-01), Raynsford et al.
patent: 3999443 (1976-12-01), Appel et al.
patent: 4019386 (1977-04-01), Appel et al.
patent: 4098118 (1978-07-01), Schmoock
Appel Eggert
Geisler Gottfried
Kiene Wilfried
Ebert Michael
Fischer & Porter Company
Woodiel Donald O.
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