A multi-sensor induction flowmeter reducing errors due to non-axisymmetric flow profiles

The measurement of volume or mass flow through pipes is generally affected by the flow profile, ie, the distribution of fluid velocity over the pipe cross section. To ensure a well-defined flow profile, the flowmeter must be placed sufficiently distant from distorting installations like bends or val...

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Bibliographic Details
Published in:Measurement science & technology 1996-03, Vol.7 (3), p.354-360
Main Authors: Horner, B, Mesch, F, Trächtler, A
Format: Article
Language:English
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Summary:The measurement of volume or mass flow through pipes is generally affected by the flow profile, ie, the distribution of fluid velocity over the pipe cross section. To ensure a well-defined flow profile, the flowmeter must be placed sufficiently distant from distorting installations like bends or valves. With induction flowmeters, the accuracy is independent of the flow profile in the radial direction, but it is influenced by profiles deviating from axial symmetry. A novel method for reducing this error is discussed. The method is based on tomographic principles using multiple electrode pairs and two magnetic field components. The pertinent theory is developed and experimental results are presented. (Abstract uses original text)
ISSN:0957-0233
1361-6501
DOI:10.1088/0957-0233/7/3/016