METHOD FOR DETERMINING CHARACTERISTICS OF FRAGMENTATION FIELD OF AMMUNITION, AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2014 - IPC F42B35/00 

FIELD: weapons and ammunition.

SUBSTANCE: method consists in blasting of ammunition in a blasting chamber and obtaining of time dependence of filtered Doppler frequencies of signals reflected from the part of fragmentation field relative to ammunition blasting moment. Radar speed metre is set so that axis of antenna directivity pattern comprises acute angle α with a plane passing through ammunition longitudinal axis and longitudinal axis of a slot of the blasting chamber. Doppler frequencies of signals reflected from the part of fragmentation field are filtered when the field is located within the directivity pattern of the radar speed metre. Speeds of leading and closing fragments, average speed and depth of the fragmentation field are determined as per time dependence of filtered Doppler frequencies of signals reflected from the part of the fragmentation field relative to ammunition blasting moment. Dynamics of development of the ammunition fragmentation field is determined by discretisation of a measurement process at analysis of signals reflected from the part of the fragmentation field. The device includes a target, a blasting chamber, an ammunition, an initiation device, a radar speed metre, a microPC, an antenna drive, a drive sensor, a digital-to-analogue converter and a unit for determining characteristics of ammunition fragmentation field. The blasting chamber has a slot, the width and length of which allows catching the part of ammunition fragmentation field. Radar metre consists of in-series connected antenna, high-frequency generator and a unit of broad-band amplifiers, n filters and n switches.

EFFECT: improving test informativity.

2 cl, 2 dwg