NDLI: The derivation and validation of the practical operating equation for electromagnetic flowmeters: case of having an electrolytic conductor flowing through

Content Provider	IEEE Xplore Digital Library
Author	Maalouf, A.I.
Copyright Year	2001
Abstract	In this paper, the practical operating equation for the electromagnetic flowmeter is derived for the case of having a circular pipe with an electrolytic conductor flowing through. It is assumed further that the magnetic field is uniform and the velocity profile is axisymmetric (assuming nonconducting walls). The derivation was done before by many authors to whom the author refer to in this paper, but the approach provided here is comprehensive and simple. To add to that, the solution for the electromagnetic flowmeter's operating equation illustrated in this paper is new and is provided using very simple mathematical concepts, eliminating the complexity of solutions provided by other authors in the past. In the end, the practical operating equation derived was validated using a new approach based on the finite element analysis and the moving stream method to estimate the error resulting from using this operating equation with the assumptions of having a uniform magnetic field and an axisymmetric velocity profile, which are difficult to achieve in practice. This error can be used in a dry calibration to estimate the error caused by variable flow characteristics.
Sponsorship	IEEE Sensors Council
Starting Page	89
Ending Page	96
Page Count	8
File Size	387013
File Format	PDF
ISSN	1530437X
Volume Number	6
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Equations Computer aided software engineering Conductors Voltage Fluid flow measurement Magnetic field measurement Electromagnetic measurements Magnetic fields Electrodes Finite element methods validation Electromagnetic flowmeter Faraday's law finite element analysis Maxwell's equations moving stream method operating principle
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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