Electric contact assembly for a cartridge to be fired from a weapon barrel

摘要

An electric contact assembly in combination with a cartridge to be fired from a weapon barrel. The cartridge has a cartridge case including a metal bottom having an externally exposed outer face; and an electronic unit disposed in the cartridge case. The electric contact assembly includes a contact arrangement for establishing an electric connection between the electronic unit and an evaluating and control apparatus situated externally of the cartridge. The contact arrangement includes a contact ring disposed in the case bottom and surrounds the longitudinal axis of the cartridge. The contact ring has an outer face which is approximately flush with the outer face of the case bottom. An insulation electrically insulates the contact ring from the case bottom. A magnetic field sensor emits a signal upon closing a breechblock of the weapon in which the cartridge is positioned. A switch is connected between the electronic unit and the contact ring. The switch has an open state in which electric connection between the contact ring and the electronic unit is interrupted and a closed state in which electric connection between the contact ring and the electronic unit is maintained. The magnetic field sensor is connected to the switch for placing the switch into the closed state solely in response to the signal emitted by the magnetic field sensor.