Eddy currents (also called Foucault currents) are currents induced in conductors when the magnetic flux linked with a solid conductor changes. The change in magnetic flux can cause a circulating flow of electrons, or a current, within the body of the conductor.
The term eddy current comes from analogous currents seen in water.
Applications
Electromagnetic braking
Metal detectors
Eddy current adjustable-speed drives
Eddy-current testing
Electric meters (Electromechanical Induction Meters)
Eddy current brakes
Induction heating
Proximity sensor (Displacement sensors)
Traffic Detection Systems
Vending machines (detection of coins)
Coating Thickness Measurements
Sheet Resistance Measurement
Eddy current separator for metal separation
Mechanical speedometers
Safety Hazard and defect detection applications