脉冲涡流矩形传感器的方向特性仿真分析
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。
有限元分析
方向特性
Pulsed eddy current
Finite element analysis
Directional characteristics
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.
中图分类号 TG115.28
所属栏目 2013远东无损检测新技术论坛论文精选
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)
收稿日期 2013/5/28
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备注周德强(1979-)，男，博士，讲师，主要研究方向为新型传感器和电磁无损检测。
引用该论文: ZHOU De-Qiang,YOU Li-Hua,YAN Xiang-Yang,ZHANG Qiu-Ju. Simulation on the Directional Characteristic of Rectangular Probe Using Pulsed Eddy Current Testing[J]. Nondestructive Testing, 2013, 35(12): 38～41
周德强,尤丽华,闫向阳,张秋菊. 脉冲涡流矩形传感器的方向特性仿真分析[J]. 无损检测, 2013, 35(12): 38～41
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参考文献
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【2】杨宾峰. 脉冲涡流无损检测若干关键技术研究［D］.长沙：国防科技大学，2006.
【3】徐志远，武新军，黄琛,等. 激励参数和试样电磁参数对脉冲涡流检测的影响的仿真分析［J］.无损检测，2011,30(6)：1-4.
【4】Plotnikov Y A,Nath S C,Rose C W. Defect characterization in multi-layered conductive components with pulsed eddy current［J］.Review of Process in QDNE, 2002,(21A):1976-1983.
【5】Maxim Morozov, Gui Yun Tian, Philip J Withers. The pulsed eddy current response to applied loading of various aluminium alloys［J］.NDT&E International, 2010(43):493-500.
【6】Fava J, Ruch M. Design, construction and characterization of ECT sensors with tectangular planar coils［J］.Insight,2004,46(5):268-274.
【7】Ptchelintsev A, de Halleux B. Two-dimensional finite element model for a long rectangular eddy current surface coil ［J］.Rev Sci Instrum,2000,71(2):571-576.
【8】Greenhouse HM. Design of planar rectangular microelectronic inductors ［J］.IEEE T Parts Hyb Pac,1974,10(2):101-109.
【9】Theodoros P Theodoulids, Epameinondas E Kriezis. Impedance evaluation of rectangular coils for eddy current testing of planar media ［J］.NDT&E International,2002(35):407-414.
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