paper

Contactless Electromagnetic Phase-Shift Flowmeter for Liquid Metals

arXiv:1010.0404 · doi:10.1088/0957-0233/22/5/055402

Abstract

We present a concept and test results of an eddy-current flowmeter for liquid metals. The flow rate is determined by applying a weak ac magnetic field to a liquid metal flow and measuring the flow-induced phase disturbance in the external electromagnetic field. The phase disturbance is found to be more robust than that of the amplitude used in conventional eddy-current flowmeters. The basic characteristics of this type of flowmeter are analysed using simple theoretical models, where the flow is approximated by a solid body motion. Design of such a flowmeter is presented and its test results reported.

19 pages, 13 figures, to appear in Meas. Sci. Technol (final version)

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