A Longitudinal Mode Electromagnetic Acoustic Transducer (EMAT) Based on a Permanent Magnet Chain for Pipe Inspection

A Longitudinal Mode Electromagnetic Acoustic Transducer (EMAT) Based on a Permanent Magnet Chain for Pipe Inspection

A new electromagnetic acoustic transducer (EMAT) design, employing a special structure of the permanent magnet chain, is proposed to generate and receive longitudinal guided waves for pipe inspection based on the magnetostriction mechanism. Firstly, a quantitative analysis of the excitation forces s...

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Bibliographic Details
Main Authors: Ming Cong, Xinjun Wu, Chunqiao Qian
Format: Article
Language:English
Published: MDPI AG 2016-05-01
Series:Sensors
Subjects:
longitudinal mode
pipe inspection
EMAT
permanent magnet chain
defect detection
Online Access:http://www.mdpi.com/1424-8220/16/5/740

Internet

http://www.mdpi.com/1424-8220/16/5/740

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