Pulsed eddy current non-destructive testing and evaluation: A review

A Sophian, G Tian, M Fan - Chinese Journal of Mechanical Engineering, 2017 - Springer
Pulsed eddy current (PEC) non-destructive testing and evaluation (NDT&E) has been
around for some time and it is still attracting extensive attention from researchers around the …

Measurement of coating thickness using lift-off point of intersection features from pulsed eddy current signals

Y Wang, M Fan, B Cao, B Ye, D Wen - NDT & E International, 2020 - Elsevier
In industries, the thickness measurement of non-ferromagnetic coatings on a ferromagnetic
substrate is a difficult problem. In this paper, we proposed a simple but liftoff insensitive …

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 …

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 …

Measuring lift-off distance and electromagnetic property of metal using dual-frequency linearity feature

M Lu, X Meng, R Huang, L Chen… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Lift-offs of the sensor could significantly affect the measurement signal and reconstruction of
material properties when using the electromagnetic (inductive) eddy current (EC) sensor …

Receiver signal analysis on geometry and excitation parameters of remote field eddy current probe

Q Xiao, J Feng, Z Xu, H Zhang - IEEE Transactions on Industrial …, 2021 - ieeexplore.ieee.org
The traditional remote field eddy current (RFEC) testing is a method widely applied for
detecting the corrosion and wall thinning in a ferromagnetic pipe system and shows intrinsic …

Detection of circumferential cracks in heat exchanger tubes using pulsed eddy current testing

Z Yu, Y Fu, L Jiang, F Yang - NDT & E International, 2021 - Elsevier
Heat exchanger tubes in industrial pressure vessels typically require periodic inspection,
and detection of circumferential cracks is one of the foremost issues. In this study, the pulsed …

Defect characterization with eddy current testing using nonlinear-regression feature extraction and artificial neural networks

LS Rosado, FM Janeiro, PM Ramos… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
The estimation of the parameters of defects from eddy current nondestructive testing data is
an important tool to evaluate the structural integrity of critical metallic parts. In recent years …

Evaluation of coating thickness using lift-off insensitivity of eddy current sensor

X Meng, M Lu, W Yin, A Bennecer, KJ Kirk - Sensors, 2021 - mdpi.com
Defect detection in ferromagnetic substrates is often hampered by nonmagnetic coating
thickness variation when using conventional eddy current testing technique. The lift-off …

Non-destructive evaluation of ferromagnetic material thickness using pulsed eddy current sensor detector coil voltage decay rate

N Ulapane, A Alempijevic, JV Miro, T Vidal-Calleja - NDT & E International, 2018 - Elsevier
A ferromagnetic material thickness quantification method based on the decay rate of the
Pulsed Eddy Current sensor detector coil voltage is proposed. An expression for the decay …