METHOD OF DETECTION OF THE NUMBER OF ACTUATED CHARGES AT MULTIPLE BLASTS Russian patent published in 1998 - IPC

FIELD: measuring equipment for monitoring of the number of actuated explosive charges at blasting operations in mines. SUBSTANCE: charges are installed in ground and blasted. Bursts of optical radiation of blasts are detected in the region of visible light. Optical fibre is positioned for touching of each charge or its detonating cord. Light flashes are introduced through lateral surface of optical fibre in succession, beginning from the point of touching of optical fibre with the charge or detonating cord that is most distant from the detector. EFFECT: enhanced reliability of information. 5 dwg