Enhancement of the Excitation Efficiency of a Torsional Wave PPM EMAT Array for Pipe Inspection by Optimizing the Element Number of the Array Based on 3-D FEM

Enhancement of the Excitation Efficiency of a Torsional Wave PPM EMAT Array for Pipe Inspection by Optimizing the Element Number of the Array Based on 3-D FEM

Electromagnetic acoustic transducers (EMATs) can generate non-dispersive T(0,1) mode guided waves in a metallic pipe for nondestructive testing (NDT) by using a periodic permanent magnet (PPM) EMAT circular array. In order to enhance the excitation efficiency of the sensor, the effects of varying th...

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Bibliographic Details
Main Authors: Yugang Wang, Xinjun Wu, Pengfei Sun, Jian Li
Format: Article
Language:English
Published: MDPI AG 2015-02-01
Series:Sensors
Subjects:
PPM EMAT array
guided wave
excitation efficiency
element number
optimization
3-D simulation analysis
Online Access:http://www.mdpi.com/1424-8220/15/2/3471

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