FIELD: valuable paper security controlling processes.
SUBSTANCE: method involves moving paper with magnetic authenticity agents distributed within paper with predetermined distribution function through alternating magnetic field; registering electromagnetic radiation from each of magnetic authenticity agents; determining their number and evaluating authenticity degree of paper; before evaluating the degree of authenticity, moving paper through light radiation; registering intensity distribution of reflected light radiation; evaluating degree of authenticity by controlling mutually identical correspondence between intensity distribution of reflected light radiation and distribution function of magnetic authenticity agents.
EFFECT: increased degree of protecting paper security from counterfeit and simplified testing of paper security authenticity.
3 cl, 3 dwg, 1 ex
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