Magnetic Field Probe for Noninvasive Diagnostics of FCG Operation: Simulation and Experiment

2-D simulation of the flux compression generator (FCG) operation enables the calculation of the local magnetic field outside the FCG stator. The magnetic field strength at a certain point outside the FCG stator is shown to be dependent on the stator geometry, the electric current in the FCG circuit, and the snapshot of the armature position with respect to the observation point. The measurements made by the dedicated probe placed on the stator support shell confirm the simulation results. The distinguished points of the time-dependent magnetic field strength make it possible to place the magnetic field probe on the stator support shell for noninvasive diagnostics of the FCG operation.