Research Papers

Electromagnetic Flowmeter Primary Elements

[+] Author and Article Information
V. P. Head

Fischer and Porter Company, Hatboro, Pa.

J. Basic Eng 81(4), 660-666 (Dec 01, 1959) (7 pages) doi:10.1115/1.4008585 History: Received August 06, 1958; Published December 01, 1959; Online February 20, 2019


An obstructionless flowmeter for electrically conducting liquids is described. Tentative design and inspection criteria which have been found to provide accuracies of ±1/2 per cent, or as little as ±0.005 fps pipeline velocity, are set up. A practical threshold conductivity of meterable liquids is set at 20 micromhos per cm, though there is every reason to believe this will be drastically cut with further progress. Above this threshold, the flow coefficient in the volume-rate equation is shown by tests to be independent of the conductivity, of the Reynolds number, and of installation conditions.

Copyright © 1959 by ASME
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