PARAMETRICAL DEPENDANCE OF COILGUN ENERGIZED BY COMMERCIAL POWER SUPPLY

摘要

The coilgun accelerates a projectile by the magnetic force produced from the current-carrying coil. We have examined the fundamental characteristic of coilgun dorectly energized by commercial power supply. We have successfully launched the projectile from a single coilgun and have investigated the energy conversion efficiency estimated by the velocity of projectile when the projectile, coil design and the half-wave number of applied voltage are changed. Then we have examined the behavior of a projectile using a photo diode and a laser. To increase the velocity of the projectile we have also attempted to examine a multistage coilgun.