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Eddy Current

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**Eddy Current**

What is Eddy Current?

Eddy currents are loops of electrical current induced within a conductor 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. They are commonly used in non-destructive testing (NDT) to detect surface and subsurface flaws in conductive materials, in eddy current brakes to slow down moving objects, and in induction heating to heat conductive materials.

What other technologies are related to Eddy Current?

Eddy Current Competitor Technologies

Magnetic Particle
Magnetic Particle Inspection (MPI) is an alternative NDT method used to detect surface and near-surface flaws in ferromagnetic materials. It competes with eddy current testing.
penetrant
Penetrant testing is an alternative NDT method used to detect surface flaws. It competes with eddy current testing, especially for non-ferrous materials.
Liquid Penetrant
Liquid Penetrant Inspection (LPI) is an alternative NDT method used to detect surface flaws. It competes with eddy current testing, especially for non-ferrous materials.
Ultrasonic
Ultrasonic Testing (UT) is an alternative NDT method that uses sound waves to detect internal flaws and measure thickness. It can compete with eddy current testing, depending on the application.
Radiography
Radiography is an alternative NDT method that uses X-rays or gamma rays to inspect internal structures. It competes with eddy current testing for detecting internal flaws.
shearography
No summary available
Shearography is an alternative NDT method that is used to detect flaws, such as delaminations, disbonds, and cracks, by looking at changes in surface displacement under stress. It may compete in certain aerospace and composite applications.
laser shearography
No summary available
Laser Shearography is an alternative NDT method that is used to detect flaws, such as delaminations, disbonds, and cracks, by looking at changes in surface displacement under stress. It may compete in certain aerospace and composite applications.
dye penetrant
Dye penetrant testing is an alternative NDT method used to detect surface flaws. It competes with eddy current testing, especially for non-ferrous materials.
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Eddy Current Complementary Technologies

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