Firing initiating device

摘要

A pressure impulse for initiating a pressure-impulse initiatable fuse is generated by an electric discharge created in a spark gap between electrodes of mutually opposite polarity. There are used electrodes which are movable relative to one another and voltage is applied to the electrodes when the distance between the electrodes is too great for an electric discharge to take place therebetween, whereafter the electrodes are caused to approach each other at least until a discharge occurs.