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Pulsed eddy current system for dynamic inspection of defects

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Pulsed Eddy Current (PEC) techniques have been investigated and applied for field applications. On-line inspection is essential for many manufacturing processes and other NDE applications. This paper investigates the dynamic behaviour of pulsed eddy current techniques and the feasibility of their use in an on-line inspection system. After discussing the PEC principles and their signal signatures, an approach on improving the dynamic response of PEC is introduced and tested. The results have illustrated that the proposed PEC system and their feature extraction can be used for real-time inspection such as NDT for manufacturing processes.

Document Type: Research Article

Affiliations: 1: The University of Huddersfield, Queensgate, Huddersfield HD1 3DH, UK 2: Structural Integrity Department, TWI, Granta Park, Great Abington, Cambridge CB1 6AL

Publication date: May 1, 2004

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