A New Approach to Signal Processing for DC-Electromagnetic Flowmeters

Electromagnetic flowmeters with DC excitation are used for a wide range of fluid measurement tasks, but are rarely found in dosing applications with short measurement cycles due to the achievable accuracy. This paper will identify a number of factors that influence the accuracy of this sensor type when used for short-term measurements. Based on these results a new signal-processing algorithm will be described that overcomes the identified problems to some extend. This new method allows principally a higher accuracy of electromagnetic flowmeters with DC excitation than traditional methods.

• Michael Schukat

• Electromagnetic Flowmeter
• Kalman Filter
• ShortMeasurement Cycles
• Signal Estimation

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