Absolute Coil		The intrinsic property for a material to carry electric current
Amplitude Response		A coil that responds to the total detected magnetic properties of a part.
Eddy Current		When distance is varied between test object and probe coil
Cunductivity		The disturbance in Eddy Current due to the proximity of abrupt change in geometry
Edge Effect		Wave energy over a described range of frequency
Coupling		Variation in coil spacing due to lateral movement
EDP		3 times the SDP
Defect Resolution		An electrical current caused to flow in a conductor
Diamagnetic Materials		Permeability is less than unity
Differential Coil		Enables the separation of indications
Electromagnetic Testing		2 or more coils electrically connected in series
Lift-off		Permeability slightly greater than unity
Filter		Two coils with common impedance current in one causes voltage in the other
Impedance		Examining the amplitude of the detected signal without being compared to phase.
Paramagnetic material		Testing method using electromagnetic energy
Skin Effect		Time displacement between 2 sign waves of the same frequency
Phase Angle		The total opposition that a circuit presents to the flow of altenating current
Wobble		Frequency goes up = Depth of penetration goes down