DEVICE OF MEASUREMENT OF GIVEN DISTANCE BETWEEN OBJECTS Russian patent published in 2014 - IPC G01S17/00 

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to arms, namely to design of contact-free fuses of jet ammunition. Device includes two or more receiving-emitting channels positioned around longitudinal axis of device, each of which includes an electronic unit, an optic emission pulse source and a photoreceiver, all connected to the electronic unit. The optic emission source and the photoreceiver forming a receiving-emitting channel are positioned mainly close to each other. Optical axes of optical emission pulse source and photoreceiver are parallel and oriented at < 90° angle towards longitudinal axis matching movement speed vector of the object on which the device is mounted. Required number of emitters is determined by the ratio: n ≥ 2π/(α+b/R), where: n is the number of emitters; α is divergence angle of emission beam; b is the minimum dimension of approaching object; R is a definite measured distance between objects.

EFFECT: enhanced accuracy of determination of moment when a definite distance between objects drawn together is achieved, improved interference protection, reduced weight, dimensions and power consumption.

1 dwg