Measuring and testing – Volume or rate of flow – By measuring electrical or magnetic properties
Patent
1985-06-11
1987-08-25
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
By measuring electrical or magnetic properties
G01F 158
Patent
active
046884319
ABSTRACT:
A device for measuring molten metal flow within a conduit capable of use without external cooling employing principles of magnetic field and electrical current generation therefrom by employing a post manufactured oxidation stabilized thermally treated mica as the electrica insulation between the laminations of the elements of the fingered magnetic laminate and annularly wound coils within the fingered laminate assembly, comprised of a tube and a tube core positioned within the tube forming an annulus therebetween, at least a pair of fingered laminate assemblies having an even number of fingers positioned about the periphery of said tube, each of the spaces between the fingers containing coils annularly wound about the tube, alternating coils being connected to a power source to induce a current in the intermediate coil(s) when metal is flowing in the annulus, which current is proportionate to the metal flow and is measured.
REFERENCES:
patent: 3138022 (1964-06-01), Mayer
patent: 3539913 (1970-11-01), Prival
Baker G. R.
Goldstein Herbert
The Dow Chemical Company
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