Abstract
This In this paper we present a method to determine the current density inside an aluminum plate subject to a eddy current testing procedure to determine the existence of surface cracks. The general idea consists in generating eddy currents in the plate, which in the case of flawless material, must be of uniform density pointing along a pre-defined direction inside a given area on the plate surface. These currents are produced using a planar coil. The eddy current density is determined by inversion of the data obtained my measurement of one single component of the resulting magnetic field. Tikhonov regularization is applied to the inverted data.
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