Current-source excitation-type electromechanical pulser

The power output of the electromechanical pulser is primarily limited by the armature self-inductance. A shielding scheme is developed and analyzed by means of which the armature self-inductance is reduced by two orders of magnitude and consequently the power output is increased by the same amount. Utilizing this scheme it is shown that, for 1-millisecond pulses, power outputs of the order of 100 mw (megawatts) per cubic meter of the armature volume are possible.