Working Principle of Electromagnetic Flow Meter

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Working Principle of Electromagnetic Flow Meter

The electromagnetic flowmeter works on the principle of Faraday’s Law of electromagnetic induction.

 This law states that when the conductive liquid passes through the magnetic field, the voltage induces across the conductor. 

The magnitude of the voltage is directly proportional to the velocity, length of the conductor and the strength of the magnetic field.

working-principle-of-electromagnetic-flow-meter

The magnetic field is generated by the coil which is mounted on the external metallic body of the pipe. 

The liquid acts as a conductor and when passes through the magnetic field induce the voltage across the coil. The magnitude of the voltage depends on the velocity of the liquid.

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