Process for applying an irreproducible tag on solid objects

The invention relates to information technologies for identification of material resources, namely to a process for applying an irreproducible tag on solid objects. The process, according to the invention, provides for the application on the object of a coordinate grid, an individual matrix and an identification number, at the same time the matrix represents cavitation cavities and is made by ultrasound radiation of the aqueous solution introduced into the space between the object and the magnetostrictor placed on the coordinate grid with the possibility of displacement through a random number generator. The ultrasound oscillation range is regulated in the frequency interval 2À104à4À105 Hz, and the aqueous solution is subjected to radiation with an intensity higher than 3À103 W/m2. Inventia se refera la tehnologii informationale pentru identificarea resurselor materiale, si anume la un procedeu de aplicare a unui marcaj ireproductibil pe obiecte solide. Procedeul, conform inventiei, prevede aplicarea pe obiect a unei grile de coordonate, a unei matrice individuale si a unui numar de identificare, totodata matricea reprezinta niste caverne cavitationale si este realizata prin iradierea cu ultrasunet a unei solutii apoase introduse in interstitiul dintre obiect si un magnetostrictor amplasat deasupra grilei de coordonate cu posibilitatea deplasarii prin intermediul unui generator de numere aleatorii. Diapazonul oscilatiilor ultrasunetului este reglat in intervalul de frecvente 2·104...4·105 Hz, iar solutia apoasa este supusa iradierii cu o intensitate mai mare de 3·103 W/m2.