FIELD: engineering of safety systems and relevant safety equipment, in particular, for protecting products from falsification.
SUBSTANCE: for each manufacturer his product is marked by special mark unique for each manufacturer of product and consisting of one or several elements, while each one of mark elements is manufactured of amorphous ferromagnetic alloy with unique changing of gradient of excitation frequencies, and when positioning aforementioned mark in electromagnetic field each element of mark activates and emits response signal in form of electromagnetic field excitation registered by recognition device, excitation frequencies gradient is calculated, which can be utilized to determined manufacturer by means of match table.
EFFECT: improved protection for manufacturer from falsification of product produced by manufacturer.
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