|Simply, Magnetic Flow Meters works on Faraday’s Law of ElectroMagnetic Induction. The Two Green dots in the animation indicates electrodes. The Copper coils on top & bottom of the instrument are electro-magnets used to generate magnetic field. When there is no fluid flow then the voltage between electrodes is Zero. When a fluid flows through the magnetic field, the two electrodes pick up the voltage and it is proportional to fluid flow rate.|
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Also Read: Magnetic Flow Meters Full Working Principle