A validated model for the electromagnetic flowmeter´s measuring cell: case of having an electrolytic conductor flowing through

Author

Maalouf, Aline I.

Author_Institution

Dept. of Eng. Sci., UTC Lab., Oxford

Volume

6

Issue

3

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

623

Lastpage

630

Abstract

In this paper, the author seeks to perform an online measurement of the electrodes impedances in an electromagnetic flowmeter that could be covered by coatings or not. This online measurement of the electrode impedances determine the magnitude and phase of impedance changes during the operation of the flowmeter. This means that it is possible to assess the accuracy of lumped element models for the measuring cell of the flowmeter. In addition, these measurements are useful to determine the lower frequency limit above which the reading of the induced voltage level of the electromagnetic flowmeter can be carried out with a sufficient signal-to-noise ratio and are useful as well to determine the required input impedance of the preamplifier in the working frequency range

Keywords

electrochemical electrodes; flowmeters; electrode impedance measurement; electrode/electrolyte interface; electrolytic conductor; electromagnetic flowmeter; impedance spectrometry; impedance spectroscopy; lumped element models; measurement cell; preamplifier; Coatings; Conductors; Electrodes; Electromagnetic measurements; Electromagnetic modeling; Frequency measurement; Impedance measurement; Performance evaluation; Phase measurement; Voltage; Electrode/electrolyte interface; impedance spectrometry; impedance spectroscopy; measurement cell;

fLanguage

English

Journal_Title

Sensors Journal, IEEE

Publisher

ieee

ISSN

1530-437X

Type

jour

DOI

10.1109/JSEN.2006.874461

Filename

1634414