Modeling of two-element tangential eddy current probe with active shielding for soldered joints inspection

The paper is devoted to designing a finite-element model of the eddy current probe for testing the degree of soldering of lap soldered joints of conductive busbars. The method for finite-element model designing is developed, which parameters provide calculations error of signals of finite-element model of eddy current probe below 1.5%. The test results confirm the performance of the eddy current probe, the measurement range for soldered joints defect size from 0 to 100 % and provision of the declared basic absolute error of the degree of soldering measurement of 5 %.