초록 ▼

Disclosed is a high-acceleration resistant, programmable, electronic time fuze and a method of an apparatus for the correction of the operating time of this time fuze by muzzle velocity measurement carried out inside the projectile or at the gun tube. The time fuze uses the muzzle velocity measured

Disclosed is a high-acceleration resistant, programmable, electronic time fuze and a method of an apparatus for the correction of the operating time of this time fuze by muzzle velocity measurement carried out inside the projectile or at the gun tube. The time fuze uses the muzzle velocity measured at firing to adjust its operating time. Thus, range dispersion of the event time is substantially reduced. The muzzle velocity is measured with a metal sensitive probe installed inside the projectile. When the probe passes annular grooves in the gun wall, an oscillator is detuned and generates pulses for determination of the projectile muzzle velocity. A bidirectional counter responds to the pulses in one direction, to other information in the other direction and sets off the fuze at a predetermined count such as zero.

대표청구항 ▼

Method setting the operating time of a time fuze in a projectile to be fired from a gun barrel, characterized by measuring the muzzle velocity of the projectile, and correcting the time setting on the basis of the muzzle velocity measured at a measuring station, the velocity being measured by measur

Method setting the operating time of a time fuze in a projectile to be fired from a gun barrel, characterized by measuring the muzzle velocity of the projectile, and correcting the time setting on the basis of the muzzle velocity measured at a measuring station, the velocity being measured by measuring means in one of projectile and barrel relative to annular groove means on the other of said projectile and barrel.