CONTACT SENSOR FOR DETECTING MOMENT OF ARRIVAL OF FRAGMENT AT EXPLOSION OF FRAGMENTATION PROJECTILE Russian patent published in 2020 - IPC F41J5/44 

FIELD: testing equipment; measuring equipment.

SUBSTANCE: invention relates to the field of test and measurement equipment, namely to the field of explosive ballistics and technical devices used to determine the speed of the ready striking elements and fragments of natural crushing, which are formed during explosive destruction of corps of fragmentation munitions, at the initial stage of expansion and in the near zone. Disclosed is a contact sensor for detecting fragments during a fragmentation projectile explosion, comprising closed conductive elements separated by a layer of insulating material, at least one of which is made in form of a mesh. Frontal conductive element (1) is a grid with rectangular cells, the maximum and minimum dimensions of which do not exceed the maximum and minimum dimensions of the detected fragment, respectively. Insulating material (3) used is a spatial honeycomb structure of flat elements, the thickness of which does not exceed the value of the wire diameter of the screen, a foamed polymer material with a large-porous structure or an air bubble film. Thickness of insulating material layer does not exceed minimum size of detected fragment.

EFFECT: higher accuracy of measurements due to reduced sensitivity of the sensor to the electromagnetic explosion pulse by reducing capacitance characteristics.

1 cl, 3 dwg