Inspection of printed circuit board by ECT probe with solenoid pick-up coil
Inspection of printed circuit board by ECT probe with solenoid pick-up coil
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使用带螺线管拾波线圈的 ECT 探头检查印刷电路板
DOI：
10.3379/jmsjmag.24.839
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
M. Iwahara
中科院分区：
文献类型：
--
作者：
D. Kacprzak;T. Miyagoshi;S. Yamada;M. Iwahara
本文提出了一种新的涡流检测（ECT）探头配置的印刷电路板（PCB）的检测。探头的设计是基于一个曲折（激励）线圈和一个拾波线圈，它具有螺线管结构。本文包括数值计算的结果显示周围的缺陷磁通分布，以及实验扫描结果。它表明，探头可以检测PCB导体上的裂纹具有高分辨率。
This paper presents a new Eddy-Current Testing (ECT) probe configuration for inspection of printed-circuit boards (PCBs). The probe design had been based on a meander (exciting) coil and a pick up coil, which has solenoid structure. The paper includes the results of numerical calculation showing the magnetic flux distribution around defects, as well as experimental scanning results. It demonstrates that the probe can detect cracks on PCB conductors with high resolution.