REMOTE-CONTROL BLASTING DEVICES FOR JET PROJECTILES OF SALVO-FIRE SYSTEMS Russian patent published in 2001 - IPC

FIELD: military equipment, in particular, remote-control explosive devices for salvo-fire systems jet projectiles with cassette or separated warheads. SUBSTANCE: for taking into account the deviation of the actual parameters of projectile motion from the design ones and correction of the preset time of remote actuation the remote-control explosive device uses an accelerometer and a computer realizing the correction algorithm, taking into account the projectile velocity in a fixed point of the trajectory, the coefficient and functional introduced in the pre-launch procedure. At projectile launching signals corresponding to the projectile axial acceleration start arriving at the computer input. In a fixed point the computer determines the projectile velocity and realizes the preset algorithm. To prevent the influence of deviation of the accelerometer parameters (initial frequency f_o) caused by prolonged storage, dependence of f_o on temperature and other factors, an automatic frequency control (AFC) unit is introduced in the correction unit. This unit has a frequency subtraction circuit, the first and second frequency dividers, controllable frequency divider, flip-flop and an additional oscillator. Besides, the electronic time device has a correcting signal analysis unit, which keeps up with the fact that the total number of correction pulses would not exceed the maximum allowable value. EFFECT: enhanced accuracy of deployment or separation of the warhead in range. 3 cl, 3 dwg