NDLI: Study on defect type in eddy-current testing based on phase spectrum analysis

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Study on defect type in eddy-current testing based on phase spectrum analysis

Content Provider	IET Digital Library
Author	Zhang, Ronghua Ye, Song
Abstract	This article proposes the use of phase angle gradient as a feature to detect and classify different types of defects. Based on the principle of eddy-current testing (ECT), the ECT platform was designed and manufactured. Based on phase-sensitive demodulation principle, the phase angle and gradient of the detected signal are analysed. The results show that the phase angles and phase angle gradients of different types of defect detection signals show different trends; the phase angle gradient of the integrated position direction and frequency direction can effectively identify the defect type.
Starting Page	8972
Ending Page	8974
Page Count	3
Volume Number	2019
e-ISSN	20513305
Issue Number	Issue 23, Dec (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/joe/2019/23
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/joe.2018.9160
Journal	The Journal of Engineering
Publisher	The Institution of Engineering and Technology
Publisher Date	2019-03-25
Access Restriction	Open
Rights License	Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)
Subject Keyword	Defect Detection Signal Defect Type Demodulation ECT Platform Eddy Current Testing Eddy-current Testing Frequency Direction Integrated Position Direction Material Testing Nondestructive Testing: Eddy Current Testing And Related Technique Phase Angle Gradient Phase Spectrum Analysis Phase-sensitive Demodulation Principle Signal Detection Spectral Analysis
Content Type	Text
Resource Type	Article

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