Soil-based Sensor for Measurements of Static Magnetic Field

This paper examines a novel soil-based sensor for measurements of static or quasi-static magnetic fields. The proposed sensor falls under the rubric of green, non-toxic, eco-friendly, low cost, disseminable and mimetic sensors. It is worth noting that the solution here addressed aims to overcome potential problems of "traditional" silicon-based solutions that could present issues in terms of environmental pollution or biodegradability and toxicity. In particular the working principle together with finite elements numeric simulation and experimental validation will be presented demonstrating the suitability of the proposed approach in areas of interest for security applications, measurements of variable ferromagnetic materials and changes in DC magnetic field.