What are Eddy Currents?

Eddy currents are loops of electrical current induced within conductors by a changing magnetic field in the conductor according to Faraday's law of induction. Eddy currents flow in closed loops within conductors, in planes perpendicular to the magnetic field.

How are Eddy Currents Created?

They are induced by changing magnetic fields and flow in closed loops, perpendicular to the plane of the magnetic field. They can be created when a conductor is moving through a magnetic field, or when the magnetic field surrounding a stationary conductor is varying i.e. anything which results in the conductor experiencing a change in the intensity or direction of a magnetic field can produce eddy currents.

Factors Influencing the Size of Eddy Currents

The size of the eddy current is proportional to the size of the magnetic field, the area of the loop and the rate of change of magnetic flux, and inversely proportional to the resistivity of the conductor.

Everyday applications where we benefit from Eddy currents

examples include electromagnetic braking, metal detectors, aluminum can separation non-destructive testing, Identification of metals , proximity and displacement sensors detection of coins in vending machines and also for measurements of coating thickness.

Contact Information

RVmagnetics, a.s. Registration and billing information:
RVmagnetics, a.s.
Business Register of the City Court Košice, sec.: Sa, insert no.: 1662/V
Company ID number:
TAX number:
VAT number:
R&D Lab / HQ office RVmagnetics, a.s.
Němcovej 30, 040 01 Košice
Slovak Republic
European Union
Registered Seat RVmagnetics, a.s.
Němcovej 30, 040 01 Košice
Slovak Republic
European Union