What is an Electromagnetic Flow Meter?
A mag meter, or magflow meter, is a flow meter that measures the flow rate based on the electromagnetic induction principle. Based on Faraday’s Law, an electrical conductor moving through a magnetic field produces an internal electric signal. In mag meters, the liquid acts as the conductor. A magnetic field is applied to the metering tube, resulting in a potential difference (voltage). The measured voltage is directly proportional to the liquid’s velocity, runs through the meter and can be measured accurately.
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