Edge Effect: in Eddy Current is  The electromagnetic field produced by an excited test coil extends in all directions from the coil. As test objects geometrical boundaries are approached by the test coil, they are sensed by the coil prior to the coil's arrival at the boundary.
References[change | change source]
- "Zetec Inc. | Leading Non-destructive Testing (NDT) Solutions". Zetec. Retrieved 2018-01-09.