A compact guided-wave EMAT with pulsed electromagnet for ferromagnetic tube inspection-Reference-Cited by-同舟云学术

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

Published:2020-12-10 Issue:1-4 Volume:64 Page:951-958
ISSN:1383-5416
Container-title:International Journal of Applied Electromagnetics and Mechanics
language:
Short-container-title:JAE

Author:

Liu Tianhao¹,Jin Yu¹,Pei Cuixiang¹,Han Jie¹²,Chen Zhenmao¹

Affiliation:

1. , , Xi’an Jiaotong University, , China

2. , China Nuclear Power Operation Technology Co. Ltd., , China

Abstract

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 small-diameter 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.

Publisher

IOS Press

Subject

Electrical and Electronic Engineering,Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,Electronic, Optical and Magnetic Materials

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