METHOD OF NON-CONTACT AMMUNITION DETONATION PROVISION Russian patent published in 2020 - IPC F42C13/00 

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to ammunition and can be used in development of non-contact explosive devices of various ammunition. Method consists in that the ammunition is equipped with a contactless radio-detonator based on autodyne with a receiving-transmitting antenna emitting at electromagnetic missile approach to the target electromagnetic oscillations with frequency ω. Non-contact detonation of the ammunition at the target is ensured by triggering of a threshold device which records beat voltage in the autodyne supply circuit at the moment of exceeding this value by the value U_DP. Transmitting-receiving antenna autodyne constructed under the scheme of the parallel oscillating circuit, the operating frequency electromagnetic oscillations autodyne ω₀ is set smaller than the resonance frequency autodyne ω_p in the process of approaching the ammunition to the target, the variation of beat voltage in the autodyne supply circuit is continuously recorded and the nature of change in the frequency of electromagnetic oscillations in the oscillatory circuit is analyzed. When the frequency of electromagnetic oscillations increases in the oscillatory circuit, beat voltage is supplied in the autodyne supply circuit to the threshold device, wherein the threshold voltage of the threshold device U_DP is introduced into the fuse before firing, and its value is determined using the relation U_DP=H_PΔU_D/ΔH, where H_P is the required distance of the ammunition from the target, ΔH is the difference of distances at which the maximum beating voltages in the autodyne supply circuit vary by the value ΔU_D.

EFFECT: invention allows estimating sensitivity of radio fuses based on autodyne to action of reflected signals from different reflecting surfaces.

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