Measuring and testing – Volume or rate of flow – By measuring electrical or magnetic properties
Patent
1990-12-12
1993-06-22
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
By measuring electrical or magnetic properties
7386113, 128691, G01L 318
Patent
active
052208419
ABSTRACT:
An electromagnetic fluid flow transducer formed from an electromagnetic assembly having two electromagnet units and a tubular flow contact assembly to measure fluid flow velocity and fluid volume in ionic solutions. Each electromagnet unit includes a core and a winding on the core, and a housing maintains the electromagnet units and their cores and windings in a predetermined relationship with each other. A plurality of electrode receptacles are formed in the housing proximate the flux field created by the electromagnetic assembly. The tubular flow contact assembly includes a tubular member, and four conductive electrodes positioned in and extending from the internal surface of the tubular member where fluid flow occurs. The electrode receptacles in the housing cooperatively receive the conductive electrodes in the tubular member when the tubular flow contact assembly is positioned between the electromagnet units to obtain fluid flow and fluid velocity readings and display this information on appropriate fluid flow metering equipment.
REFERENCES:
patent: 4195515 (1980-04-01), Smoll
patent: 4346604 (1982-08-01), Snook et al.
patent: 4881413 (1989-11-01), Georgi et al.
Kolin, Alexander. "Electromagnetic Blood Flow Meters"; Oct. 23, 1959. Science: vol. 130. pp. 1088-1097.
Barefoot Charles A.
Brown Samuel D.
Jones Charles R.
Stanley Larry S.
Carolina Medical Electronics, Inc.
Goldstein Herbert
Shopbell Elizabeth L.
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