An observations of magnetic patterns of a moving object by flux-gate magnetometer

Abstract

This paper describes the analysis of magnetic patterns of a moving object such as a car. The variation of the magnetic field intensity has been observed by using a flux-gate magnetometer which is set beside a road. We have experimentally measured the magnetic field intensity distribution. The results of the observed data have been perceived and classified into six typical magnetic patterns. A theoretical method to calculate the magnetic patterns also has been predetermined. Eight magnetic patterns were calculated of a simple magnetic dipole field for various magnetic bias angles B and more two magnetic patterns have been estimated over experimental method in which only six magnetic patterns were detected.
The reason of this disparity in the results is that there are some apparently difficulties in calculating the magnetic pattern with magnetic bias angles of B=90° and B=270° over the experimental method because of the shape of the object which has been chosen.