Analysis of a Measurement Method for the Railgun Current and the Armature’s Speed and Initial Position

This paper introduces a measurement method for the railgun current and the armature's speed and initial position for electromagnetic launch systems. The measurement device consists of several parts: a current B-dot probe, several speed B-dot probes, the data acquisition system, and a computer. A calibration experiment was done by comparing with another commercial Rogowski coil. The measured instan...