Laser Initiation of Non‐Primary Explosive Detonators

Aiming to solve the problems caused by primary explosives in traditional detonators, a new kind of non‐primary explosive detonator based on the principle of flying plate detonator is invented. However, in some special circumstances, such as high temperature, strong radiation, strong magnetic field, overload, high‐pressure conditions, the non‐primary explosive detonator cannot work well because of the defects of its usual used initiating method like electric hot wire initiating devices, electric exploding bridge wire initiator, and initiating by a shock‐conducting tube. In this context, initiation by low energy laser is applied to non‐primary explosive detonator. After this combination, the non‐primary explosive detonator performs well in resisting high temperature, high pressure, overload, and electric interference.