Challenges in improving the performance of eddy current testing

AN AbdAlla, MA Faraj, F Samsuri… - Measurement and …, 2019 - journals.sagepub.com
Eddy current testing plays an important role in numerous industries, particularly in material
coating, nuclear and oil and gas. However, the eddy current testing technique still needs to …

Coplanar capacitive sensors and their applications in non-destructive evaluation: a review

M Mwelango, T Zhu, K Wen, Z Zhang… - Nondestructive …, 2023 - Taylor & Francis
Compared with conventional non-destructive evaluation (NDE) techniques, such as
radiography, ultrasound, magnetic particle inspection and eddy current, the coplanar …

Determination of the magnetic permeability, electrical conductivity, and thickness of ferrite metallic plates using a multifrequency electromagnetic sensing system

M Lu, Y **e, W Zhu, A Peyton… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
In this paper, an inverse method was developed which can, in principle, reconstruct arbitrary
permeability, conductivity, thickness, and lift-off with a multifrequency electromagnetic …

[HTML][HTML] Eddy current measurement for planar structures

Z **a, R Huang, Z Chen, K Yu, Z Zhang, JR Salas-Avila… - Sensors, 2022 - mdpi.com
Eddy current (EC) testing has become one of the most common techniques for measuring
metallic planar structures in various industrial scenarios such as infrastructures, automotive …

Thickness measurement of metallic plates with finite planar dimension using eddy current method

R Huang, M Lu, A Peyton, W Yin - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Until now, the Dodd-Deeds model has been used to evaluate the inductance change in an
air-cored sensor in the presence of an infinitely large conducting plate. In practice, it can be …

Novel noncontact eddy current measurement of electrical conductivity

C Wang, M Fan, B Cao, B Ye, W Li - IEEE Sensors Journal, 2018 - ieeexplore.ieee.org
A new noncontact method for measuring the electrical conductivity of metals based on eddy
current testing is proposed for the physics that the logarithm of phase signals of impedance …

Determination of surface crack orientation based on thin-skin regime using triple-coil drive–pickup eddy-current sensor

M Lu, X Meng, R Huang, L Chen, Z Tang… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
Electromagnetic sensors have been used for inspecting small surface defects of metals.
Based on the eddy-current (EC) thin-skin regime, a revised algorithm is proposed for a triple …

Crack identification and quantification methods under the condition of lift-off effect using alternating current field measurement technique

X Bian, W Li, X Yin, X Li, S **e, J Zhao, J Zhao… - … Systems and Signal …, 2024 - Elsevier
Alternating current field measurement (ACFM) technique is an emerging non-destructive
testing method for detecting cracks in conductive material. However, the existence of lift-off …

Lift-off invariant inductance of steels in multi-frequency eddy-current testing

M Lu, X Meng, R Huang, L Chen, A Peyton, W Yin - NDT & E International, 2021 - Elsevier
Eddy current testing can be used to interrogate steels but it is hampered by the lift-off
distance of the sensor. Previously, the lift-off point of intersection (LOI) feature has been …

A characteristic approximation approach to defect opening profile recognition in magnetic flux leakage detection

Y Long, S Huang, L Peng, S Wang… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Defect opening profile recognition is a common problem in magnetic flux leakage (MFL)
detection, while the traditional defect edge detection methods are not accurate enough …