Related Experiment Video
Updated: Apr 5, 2026

Quantifying the Relative Thickness of Conductive Ferromagnetic Materials Using Detector Coil-Based Pulsed Eddy Current Sensors
Published on: January 16, 2020
Near-field imaging of buried conductors using transient EM signal transfer
Tomáš Doležal1, Martin Štumpf2,3
1Department of Radio Electronics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technicka 12, 616 00, Brno, Czech Republic. xdolez68@vutbr.cz.
Abstract:
A novel time-domain electromagnetic (TDEM) technique for reliable detection and imaging of visually obscured buried conductors using only two rapidly acquired measurements via a simple and cost-effective antenna system is presented. This non-invasive method exploits transient electromagnetic (EM) interactions to detect contrasts in electrical conductivity between targets and the surrounding medium. This approach provides a practical and flexible alternative to conventional subsurface sensing technologies. The presented results show that the proposed technique yields accurate and repeatable outcomes across various shapes of buried targets.
Related Concept Videos
Induced Electric Fields: Applications
Induced Electric Fields
Electric Field at the Surface of a Conductor
In the 19th century, Michael Faraday conducted the famous ice pail experiment to prove that the charges always reside on the surface of a conductor. The experimental set-up consists of a conducting uncharged container mounted on an insulating stand. The outer surface of the container is...

