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 …

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 …

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 …

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 …

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 …

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 …

Defect detection in ferromagnetic substrates is often hampered by nonmagnetic coating
thickness variation when using conventional eddy current testing technique. The lift-off …

Thickness measurements of metallic plates are mandatory in many industrial scenarios.
Methods based on eddy-current testing (ECT) are ideal for fast and accurate online …

Previously, various techniques have been proposed for reducing the lift-off effect on the
thickness measurement of the nonmagnetic films, including the peak-frequency feature and …

The liftoff spacing distance between the eddy current (EC) sensor and the test piece will
influence the detected signals and accuracy of the measurement. Various techniques …