マルチコイルプローブを用いた渦電流探傷による磁性材に対する割れ抽出技術
概要
Eddy current testing (ECT) with multi coil probe has been developing for enhancing surface inspection. Defect extraction method based on phase angle of lissajous waveform was effective to identify between defects and noises. This paper describes applicability of crack extraction method for magnetic material. The criteria based on feature of phase angle on magnetic material could extract defects to separate from noises like liftoff using experiment and simulation.
