As shown in Figure 1(A), the flow in the coil around the magnetic coils every moment occurs and also, as shown in Figure 1 (b) by the magnetic field around the conductor could induce the formation of the EMF, and therefore in Figure 1 (c) Eddy Current testing with coil current is used every moment, and this magnetic field is formed by the changes in the magnetic field surrounding the formation of EMF induced in the conductor. The magnetic flux passing through the coil.
Likewise, any change in the magnetic flux through the coil, a magnetic conductor within any movement made, or when changes in the current flowing through the circuit to prevent a change in the local conductor on the current arbitrary a closed circuit current to the Eddy Current, which is organic this Eddy Current
In other words, Eddy current is time for a change in current in the magnetic field formed by the conductor says. That is formed when
The size of Eddy Current conductor of the shape, size, electrical conductivity, transmissivity, depending on the changing magnetic flux in a very time
Aspect of a complex arrangements.