Lookup NU author(s): Denis Ona,
Professor Gui Yun Tian,
Dr Mohsen Naqvi
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).
© 2019 Elsevier LtdHigh lift-off inspection arising from thick insulation and requirement to protect probe from weld zones are challenges to pulsed eddy current (PEC) testing. In traditional PEC probe with fixed coil gap, weakening interaction between probe and test sample as lift-off increases reduces sensitivity. To analyse this influence, numerical simulation and experiments on design and optimisation of driver-pickup PEC probes are carried out. Results validate that both coil gap and lift-off have significant effects on resultant mutual inductance of driver-pickup PEC probes above test samples. In addition, the probe sensitivity is enhanced at a higher lift-off when coil gap exceeds a certain value. The increase in detection lift-off with coil gap could be optimised.
Author(s): Ona DI, Tian GY, Sutthaweekul R, Naqvi SM
Publication type: Article
Publication status: Published
Print publication date: 01/10/2019
Online publication date: 15/05/2019
Acceptance date: 04/04/2019
Date deposited: 14/06/2019
ISSN (print): 0263-2241
ISSN (electronic): 1873-412X
Publisher: Elsevier BV
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