PROXIMITY OPTICAL FUZE OF MINE Russian patent published in 2024 - IPC F42C13/02 

FIELD: blasting operations.

SUBSTANCE: invention relates to fuzes, namely to proximity optical mine fuze. Proximity optical fuze of mine contains N receiving channels, each of which contains light source, photodetector and amplitude selector connected in series. Optical axis of the field of view of the channel forms an acute angle with a plane perpendicular to the longitudinal axis of the mine. Between the light source and the photodetector in the plane perpendicular to the longitudinal axis of the mine, a light filter is installed with the possibility of turning around its axis, which is made in the form of a plate. Each half of the plate has a different transmission coefficient of the light source. Light filter is equipped with a sensitive element of a magnetic compass in the form of a magnetic needle with an arrester, as well as the first and second adders with N-inputs. First output of the n-amplitude selector is connected to the corresponding input of the first adder, and the second output is connected to the corresponding input of the second adder. First and second waiting multivibrators and a coincidence circuit with three inputs, the output of which is the output of the fuze, the outputs of the first and second waiting multivibrators are connected to the corresponding inputs of the coincidence circuit. In addition, a trigger and an electronic switch are introduced, the output of which is connected to the combined inputs of the first and second waiting multivibrators. Output of the first adder is connected to the combined first inputs of the electronic switch and the trigger. Input of the second adder is connected to the combined third input of the coincidence circuit and the second trigger input.

EFFECT: reduced probability of low-flying high-speed enemy objects due to formation of pulse of specified duration, providing detonating fuze in conditions of unintentional optical interference from flashes of gun shots, explosions of shells and mines simultaneously falling into several receiving channels.

1 cl, 2 dwg