A compact guided-wave EMAT with pulsed electromagnet for ferromagnetic tube inspection

被引：6

作者：

Liu, Tianhao ^{[1
]}

Jin, Yu ^{[1
]}

Pei, Cuixiang ^{[1
]}

Han, Jie ^{[1
,2
]}

Chen, Zhenmao ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Shaanxi Engn Res Ctr NDT & Struct Integr Evaluat, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China

[2] China Nucl Power Operat Technol Co Ltd, Res Inst Nucl Power Stn, Wuhan, Peoples R China

来源：

INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS | 2020年 / 64卷 / 1-4期

关键词：

Guided wave; EMAT; pulsed electromagnet; tube inspection; TRANSDUCERS;

D O I：

10.3233/JAE-209409

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：

Small-diameter tubes that are widely used in petroleum industries and power plants experience corrosion during long-term services. In this paper, a compact inserted guided-wave EMAT with a pulsed electromagnet is proposed for smalldiameter tube inspection. The proposed transducer is noncontact, compact with high signal-to-noise ratio and unattractive to ferromagnetic tubes. The proposed EMAT is designed with coils-only configuration, which consists of a pulsed electromagnet and a meander pulser/receiver coil. Both the numerical simulation and experimental results validate its feasibility on generating and receiving L(0,2) mode guided wave. The parameters for driving the proposed EMAT are optimized by performance testing. Finally, feasibility on quantification evaluation for corrosion defects was verified by experiments.

引用

页码：951 / 958

页数：8

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