多次元渦電流信号の活用によるき裂評価
英字タイトル:
Enhancement of Defect Sizing Ability by ECT Data Fusion
著者:
程 衛英 Weiying CHENG 古川 敬英 Takashi FURUKAWA
発刊日:
公開日:
Data FusionEddy Current TestingMagnetic FieldSizing
Enhancement of Defect Sizing Ability by ECT Data Fusion
著者:
程 衛英 Weiying CHENG 古川 敬英 Takashi FURUKAWA
発刊日:
公開日:
カテゴリ: 第10回
キーワードタグ:Data FusionEddy Current TestingMagnetic FieldSizing
概要
The distribution of eddy current is disturbed in the presence of cracks. An equivalent solenoid model and a loop current model were proposed respectively to model the bypasses of eddy currents to the underside and longitudinal end of a crack. Eddy current testing signals were qualitatively analyzed by using the equivalent current models. Simulation showed that the signal due to the bypass of eddy current to the under side of a crack was appropriate for the evaluation of crack depth, and the signal due to the bypass of eddy current to the longitudinal end of a crack was appropriate for the crack length evaluation. The reliability of crack sizing is enhanced by using the fused signals.
