FIELD: technology for checking integrity of protected objects.
SUBSTANCE: as binding body, metallic optic fiber is used and additionally continuous control of resistance of metallic cover is performed. Control of integrity of binding body is thus performed on basis of two criteria at once: passing of light pulses through aforementioned body and also passing of electric current, to make process of falsification of binding body practically impossible. Metallic cover prevents unauthorized reading of light pulses passing through optic fiber, and any disruption of metallic cover is detected immediately.
EFFECT: higher efficiency.
4 cl, 1 dwg
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