Measuring and testing – Volume or rate of flow – By measuring electrical or magnetic properties
Patent
1987-04-15
1988-05-03
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
By measuring electrical or magnetic properties
G01F 158
Patent
active
047412151
ABSTRACT:
A flow tube of a ceramic material used for a magnetic flowmeter is formed to have regions of a ceramic material which has enhanced properties useful in magnetic flowmeters, such as enhanced electrical conductivity or enhanced magnetic permeability. The ceramic material having enhanced electrical conductivity is used to form sensing surfaces directly in the flow tube wall so that there is no need to have separate metal electrodes attached to or otherwise formed in the wall of the flow tube. This insures a strong, monolithic flow tube wall.
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Ceramics in Severe Environments, (W. Wurth Kriegel and H. Palmour III, Eds.) Plenum Publ., N.Y., 1971, pp. 503-520.
Bohn David C.
Graupmann Lloyd E.
Goldstein Herbert
Rosemount Inc.
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