Method and device for setting the fuse and/or correcting the ignition time of a projectile

Abstract

To avoid mechanical and thermodynamic wear of a programming system, a microwave transmitter, preferably operating in the GHz range, is integrated in the system, while at the same time the advantages of measurement of the muzzle velocity and of a current compensated fuse setting are preserved. The microwave transmitter transmits the current fuse setting, for example, as determined by a fire control computer, to the ammunition, e.g., a projectile. A direct measurement of the actual muzzle velocity itself can be dispensed with, since the real muzzle velocity is determined by the current flight velocity information of the projectile, i.e., it is extrapolated back from this. On the basis of this current projectile velocity, the ignition time, which was preset with the ignition time of the projectile using a standard muzzle velocity, is corrected and used as the current fuse set time.

Description

BACKGROUND OF THE INVENTION [0001] The invention concerns a method and a device for programming a time-fuse projectile or for correcting an ignition time of a projectile fired from a weapon. [0002] Various time programmings for ammunition are known. The fuses are set either manually outside the loading chamber before the projectile is fired or electrically in the loading chamber by ignition electronics. The latter type of fuse setting is described, for example, in DE 101 52 862 A1. [0003] A method and a device for transmitting information to programmable projectiles are described in EP 0 992 762 B1. [0004] A method for correcting the preprogrammed triggering of a process in a spin-stabilized projectile and a device for carrying out this method are described in EP 0 992 761 B1. [0005] EP 0 918 209 B1 discloses a projectile with programmable time fuses. [0006] A method and a device for programming time fuses of projectiles are also described in EP 0 769 673 B1. To compute a disintegra...

AI Technical Summary

Benefits of technology

[0017] In addition, an advantage is obtained from the fact that the chip can be programmed by the fire control unit with, among other things, the current standard fuse setting and with a correction value or a value that is not determined until during the flight of the projectile.

[0020] This system eliminates the previously known expensive measuring and programming unit in the cannon or cannon tube. The microwave transmitter that is used can be locally mounted on the cannon where it is not exposed to either muzzle gases or mechanical stresses. The transmitter / receiver is electrically supplied by the electrical system of the cannon and is supplied with data of the fire control system. Any data transmitted back from the ammunition can be retransmitted to the fire control system, which can then take it into account.

Problems solved by technology

Although the above device is distinguished by a high degree of accuracy, it is subject to mechanical and thermodynamic stresses, since the measuring and programming units are exposed, among other things, to the muzzle gases.

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