公开(公告)号：US4376264A

公开(公告)日：1983-03-08

申请号：US231178

申请日：1981-02-04

申请人： Hendrik D. Dokter ,  Roelof Hildering ,  Adrianus Mackor

发明人： Hendrik D. Dokter ,  Roelof Hildering ,  Adrianus Mackor

IPC分类号： B44F1/12 ,  D21H21/48 ,  G01N24/10 ,  G07D7/00 ,  G01N27/00

CPC分类号： D21H21/48 ,  G01N24/10 ,  G07D7/00

摘要： A method of checking the authenticity of papers, such as banknotes, is provided which comprises using authentic paper containing a minor amount of substance showing an ESR spectrum at room temperature and checking the authenticity by ESR spectroscopy, as well as paper for use in said method, containing a minor amount of a compound showing an ESR spectrum at room temperature, said compound being either an oxide or salt having a crystal lattice of cubic symmetry doped with such a metal, or an oxide or salt of arbitrary symmetry doped with a freely rotatable ion containing such a metal.

摘要翻译： 本发明提供了一种检查纸币的真伪性的方法，该方法包括使用含有少量在室温下显示ESR光谱的物质的真实纸张，并通过ESR光谱法检查真伪，以及用于所述方法的纸张 ，含有少量在室温下显示ESR光谱的化合物，所述化合物是具有掺杂有这种金属的立方对称晶格的氧化物或盐，或掺杂有可自由旋转的任意对称的氧化物或盐 含有这种金属的离子。