Penetration layer counting method based on stress-magnetic effect of projectile body

Abstract

The invention belongs to the technical field of intelligent fuses, and provides a penetration layer counting method based on a stress-magnetic effect of a projectile body. The method is characterized in that a detonation control system is arranged in a penetration projectile body and comprises a magnetic sensor, a power supply module, an adaptive circuit module and a processing identifier circuit module, wherein when the penetration projectile body made of a ferromagnetic material penetrates through each layer of hard target plate, under the action of impact resistance, the stress-magnetic effect is generated, the magnetic field intensity of a magnetic leakage field on the surface of the penetration projectile body is changed, a magnetic signal serves as a layer penetrating signal, the generated magnetic signal is detected through the magnetic sensor, and an actually-detected sinusoidal impulse type analog voltage signal is preprocessed, subjected to analog-to-digital conversion and then sent to the processing identifier circuit module, a sinusoidal impulse type voltage signal is obtained after digital filtering, and layer counting is achieved by identifying the number of the impulse voltage signals. According to the method, accurate and effective layer counting detonation control signals can be provided when weapons penetrate through underground targets, and the intelligence and damage efficiency of weapon equipment are improved.

Description

technical field [0001] The invention belongs to the technical field of intelligent fuzes, and in particular relates to a layer counting method for a penetration fuze based on the force-magnetic effect of an elastic body. Background technique [0002] In military applications, the intelligent fuze assembled by hard target penetrating ammunition needs to be able to detonate when it reaches the predetermined target layer, exert the maximum damage efficiency of penetrating ammunition, and realize the function of precise strike on underground targets. Most of the layer-counting detonation control technologies of intelligent fuzes use high-g value acceleration sensors to obtain the acceleration signal when the weapon penetrates the layer, so as to determine the layer number information. However, with the increase of penetration speed and length-to-diameter ratio, complex high-frequency vibration signals are superimposed on the penetration acceleration signal and will continue unti...

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Problems solved by technology

[0003]The purpose of the present invention is to solve the problem that when the deceleration signal in the penetration process is used as the layer penetration signal, the layer penetration signal is stuck due to the superimposed vibration signal, which cannot be realized The technical problem of accurate layer counting provides intelligent detonation control signals for the fuze

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