FIELD: measuring equipment.
SUBSTANCE: invention relates to measuring equipment using optical fiber, namely to fiber-optic security detectors, as well as to products, methods, and means related to fiber-optic security detectors and their aspects. A fiber-optic security detector is described, a sensitive element of which is placed on a fence with a means for undermining detection, which is a fence formed by an obstacle stretched between columns installed on foundations, containing a mesh stretched between them in the soil, on which the sensitive element is placed. A fiber-optic security detector is also described, a sensitive element of which is placed on a fence with a means for undermining detection, which is a fence formed by an obstacle stretched between columns installed on foundations, between which the sensitive element is stretched in the soil.
EFFECT: increase in the sensitivity of a fiber-optic security detector, increase in the general operational reliability of the fiber-optic security detector, as well as implementation by the invention of its purpose.
5 cl, 12 dwg
