Method for Determining a Flow Rate of a Medium with a Magnetic-Inductive Flowmeter, Method for Operating a Filling System with a Magnetic-Inductive Flowmeter, Magnetic-Inductive Flowmeter and Filling System with a Magnetic-Inductive Flowmeter
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United States of America Patent
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Aug 22, 2024
app pub date -
Jun 16, 2023
filing date -
Jun 20, 2022
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Abstract
A method for determining a flow of a medium with a magnetic-inductive flowmeter includes: flowing a medium through a measuring tube; generating a magnetic field alternating between a first magnetic field strength in first sub-intervals and a second magnetic field strength in second sub-intervals so a measuring voltage present between two measuring electrodes is induced in the medium; carrying out a first measurement in the first sub-intervals and a second measurement in the second sub-intervals; in an interval, carrying out the steps of: determining averaged first and second measurements, determining normalized first and second measurements, determining filtered first measurements by subtracting the normalized first measurement from the first measurement, and determining a filtered second measurement by subtracting the normalized second measurement from the second measurement; and determining a flow rate of the medium using the filtered first and second measurements determined for the interval.
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