Time-domain Transient Magnetic Field Analysis of Metallic Weapons

Metallic weapons in a time varying magnetic field develop eddy currents. A method of identification of field bahaviour and eddy current in metallic weapons is established by the application of finite element analysis in time-domain transient magnetic field environment. The secondary field behaviour of complex metal structures and decay time of eddy currents was analysed in this paper. A sensor system is being designed using these results to determine the properties of secondary field and eddy currents of complex inter-metallic weapon geometries.