Crack shape reconstruction using eddy current testing camera system

被引：0
|
作者：
Nagaya, Y [1 ]
Endo, H [1 ]
Uchimoto, T [1 ]
Takagi, T [1 ]
机构：
[1] Tohoku Univ, Inst Fluid Sci, Sendai, Miyagi 9808577, Japan
来源：
Electromagnetic Nondestructive Evaluation (IX) | 2005年 / 25卷
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An ECT (Eddy Current Testing) camera system is proposed to quantitatively evaluate/visualize cracks of the metal structures. It is composed of the multi-coil ECT probe, ECT instrument, and computer-aided analysis/visualizer comprising the lens, film and development/picture as different elements of photography. At first, scanning the probe in one direction gives ECT signals as a two-dimensional image. Second, a method of the image processing enables visualization of crack shapes. Finally, an inversion based on finite elements evaluates the depth of cracks. It is applied to the inspection of austenitic stainless steel targets with fatigue cracks so as to discuss the accuracy of the system.
引用
收藏
页码：221 / 228
页数：8
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