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In electromagnetism, an eddy current (also called Foucault's current) is a loop of electric current induced within conductors by a changing magnetic field in the conductor according to Faraday's law of induction or by the relative motion of a conductor in a magnetic field. Eddy currents flow in closed loops within conductors, in planes ...
In fluid dynamics, an eddy is the swirling of a fluid and the reverse current created when the fluid is in a turbulent flow regime. [2] The moving fluid creates a space devoid of downstream-flowing fluid on the downstream side of the object.
This is the basis of standard (pancake coil) ECT. NDT kits can be used in the eddy current testing process. [6] ECT has a very wide range of applications. Since ECT is electrical in nature, it is limited to conductive material. There are also physical limits to generating eddy currents and depth of penetration . [7]
Eddy current brake, a device used to slow or stop a moving object by generating eddy currents and thus dissipating its kinetic energy as heat. Eddy, a 2015 Italian film; Eddy & The Soul Band, a 1980s Dutch disco group; Eddy (Ed, Edd n Eddy), a character on Ed, Edd n Eddy; Eddy covariance, a statistical method used in meteorology
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Eddy currents flow in closed loops in planes perpendicular to the magnetic field. They have useful applications in eddy current brakes and induction heating systems. However eddy currents induced in the metal magnetic cores of transformers and AC motors and generators are undesirable since they dissipate energy (called core losses ) as heat in ...
Second, there is the question of whether eddy currents occur in a superconductor. Our article starts out by saying "Eddy currents (also called Foucault currents) are electric currents induced within conductors by a changing magnetic field in the conductor." An obvious corollary is this: no magnetic field = no induction = no eddy current.
The eddy current separator is applied to a conveyor belt carrying a layer of mixed waste. At the end of the conveyor belt is an eddy current rotor. [4] Non-ferrous metals caught in the eddy current end up in a product bin, while other material falls off the belt due to gravity.