A type of trigger system for electromagnetic rail gun

In this paper, a type of trigger system for electromagnetic rail gun was reported. The power supply of Electromagnetic-launch-system was achieved by pulse discharging of capacitor, it had the characteristic of high voltage and huge current, so a reliable measure-and-control system was necessary to avoid the danger and to insure the predetermined power supply touching off according to the predetermined time sequence. We use serial communication for its characteristic of low cost and easy maintenance, and transmitted signals by optical fiber between master computer and terminal because of the very strong electromagnetism disturbing. The trigger in power supply employed synchronous optical coupling technique and transformer isolation drive to insure touch off safely and anti-interference ability.