Inertia Sensor Detecting Materials using Electromagnetic Signals

Abstract

There are many commercial sensors that use inertia systems and others that use electromagnetic systems. Until now, none of the existing sensors combines a circular inertia movement with the simultaneous transmission of electromagnetic radiation in the band of very low (VLF) and ultra low (ULF) frequencies. The aim of this paper is to show the design of such a sensor, that contains an electromagnetic signal generator and to observe and monitor its movement on a free rotating inclined platform. An accurate positioning and monitoring system is used in order to measure the velocity and acceleration at every position on its movement. It is a novel system that is already in use in material identification and localization. It is indubitably working and exports excellent results, although we are not still familiar with the laws of physics that determine the specific phenomenon. Until this point the sensor is used to identify only a limited number of materials. In the future it would be ideal to use it for more materials, find their frequencies and create a library that contains many materials and different kind of substances.