Apparatus for generating an electrical ignition current in a fuze of a projectile

An apparatus for generating an electric ignition current in a fuze of a projectile intended to be fired out of the barrel of a weapon having a barrel mouth, comprising:

• an induction coil located in the projectile;
• a magnet for generating a magnetic field;
• a two-part yoke, one part of which is located at the projectile and the other part at the weapon barrel, in order to produce a change in the magnetic flux upon passage of the projectile through the weapon barrel;
• said magnet comprising an electromagnet located at the mouth of the weapon barrel and composed of a number of ferromagnetic rings and paramagnetic rings arranged between the ferromagnetic rings;
• the part of the yoke at the weapon barrel comprising a three-arm yoke attached to said ferromagnetic rings;
• two electromagnetic coils polarized in opposite directions surrounding at least part of said three-arm yoke;
• the axis of the induction coil substantially coninciding with the axis of the projectile.

An apparatus for generating an electric ignition current in a fuze of a projectile intended to be fired out of the barrel of a weapon, comprising:

• an induction coil located in the projectile;
• a magnet for generating a magnetic field;
• a two-part yoke, one part of which is located at the projectile and the other part at the weapon barrel, in order to produce a change in the magnetic flux upon passage of the projectile through the weapon barrel;
• the part of the yoke located at the weapon barrel comprises:
• a number of ferromagnetic rings;
• and paramagnetic rings arranged between the ferromagnetic rings;
• the part of the yoke located at the projectile comprises:
• a substantially cylindrical body member having a substantially disc-shaped flange for the reception of the induction coil;
• and
• a soft iron disc;
• the axis of the induction coil substantially coinciding with the axis of the projectile;
• and
• said ferromagnetic rings and paramagnetic rings are arranged at the end of the weapon barrel.