Eddy Current Testing of Weld Zone Defects Using a Meander Probe
Eddy Current Testing of Weld Zone Defects Using a Meander Probe
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DOI：
10.3379/jmsjmag.25.1067
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发表时间：
2001-04
影响因子：
--
通讯作者：
T. Maeda;S. Mizuno;S. Yamada;M. Iwahara
中科院分区：
文献类型：
--
作者：
T. Maeda;S. Mizuno;S. Yamada;M. Iwahara
本文提出了一种新型涡流探头，该探头采用弯曲线圈对含有焊缝区的管道进行探伤。模拟结果表明，带有焊缝区的圆管中的涡流分布比短弯曲线圈的探头产生的涡流更均匀。用8字形检测线圈进行了实验，结果表明，该探头可以检测出30%位于焊缝区附近、长度为15 mm的缺陷。
In this paper, a new eddy current probe using a meander coil is presented for pipes including weld zones. Simulations clarified distributions of the eddy current in a tube with a weld zone, and revealed that a probe with long meander coil can generate a more uniform eddy current than a short meander coil. Experiments were carried out with a figure-of-eight detection coil, and demonstrated that the probe can detect OD 30% defects which is located near weld zone and its length is 15 mm.