脉冲涡流矩形传感器的方向特性仿真分析

基金项目:

国家自然科学基金资助项目(51107053/E070104)；中国博士后基金资助项目(2012M520994)

详细信息

Simulation on the Directional Characteristic of Rectangular Probe Using Pulsed Eddy Current Testing

摘要: 脉冲涡流检测技术是一种新兴的电磁无损检测技术。目前广泛使用的圆柱型涡流探头在各向异性金属材料检测方面存在一定限制，而矩形探头对各向异性金属材料的电导率检测优势明显。采用COMSOL有限元仿真软件，建立了矩形探头有限元仿真模型，对矩形探头的方向特性，即竖直放置和水平放置检测效果进行了仿真分析。通过对比不同方向的检测灵敏度，得出矩形传感器的放置方式体现了它的方向特性的结论，为使用脉冲涡流矩形探头实际检测缺陷或应力提供了参考价值。
- 脉冲涡流 /
- 有限元分析 /
- 方向特性
Abstract: Pulsed eddy current (PEC) testing technology is an emerging electromagnetic nondestructive testing technology. There are certain restrictions on detection of anisotropy of metal materials using pulsed eddy current circular probe. However, the rectangular probe has some advantages. The finite element model of rectangular probe using COMSOL is built. The directional characteristics of the rectangular probe are simulated based on horizontal and perpendicular locations. The results show that the directional characteristics are obvious. The conclusion will provide some references on defect and stress detection by rectangular probe.
- Pulsed eddy current /
- Finite element analysis /
- Directional characteristics

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