Thickness sensor for ferromagnetic sheets

Submersible Printed Split-Ring Resonator-Based Sensor for Thin-Film Detection and Permittivity Characterization

“…For instance, it would be useful a tool for genetic analysis [11] or the determination of the composition of different mixtures, such as ethanol and water [12]. Moreover, it is also interesting its application for sensing solids and their thickness [13]- [14].…”