Patent ID: 9316618
Filing Date: 2016-04-19
CPC Classification: G01N

Claim Text:
1. An eddy current object testing system, comprising: an eddy current probe array, configured for testing a test object, said eddy current probe array comprising more than two coils associated with different elements of more than two drive-sense channels; an acquisition unit coupled to the eddy current probe array for producing an impedance plane output for each of the channels, said acquisition unit is connected with each of the drive-sense channels; and at least one test loop provided on the eddy current probe array and at least one test loop switch in series with the at least one test loops, the at least one test loop switch being configured to selectively open or close the at least one test loops, to thereby cause the impedance plane output to assume a state that is indicative of a fault in one or more elements of the eddy current probe array; and wherein the acquisition unit is operative to selectively activate or deactivate selected ones of the drive-sense channels of the eddy current probe array.