公开(公告)号：US4408156A

公开(公告)日：1983-10-04

申请号：US138738

申请日：1980-04-09

申请人： Pierre Veys

发明人： Pierre Veys

IPC分类号： G06K7/01 ,  D21H21/48 ,  G01N22/00 ,  G01V3/12 ,  G06K7/08 ,  G06K19/06 ,  G07D7/00 ,  G07D7/10 ,  G01R27/04

CPC分类号： G07D7/10 ,  D21H21/48

摘要： A method of producing an identification signal for a sheet article of non-conductive material, which article is marked for identification purposes by the incorporation therein of a small quantity of very thin conductive fibers which are capable of absorbing and reflecting certain substantial proportions of microwave radiation energy impinging thereon, which comprise placing the part of said article in which the very thin conductive fibers are incorporated in the path of an unguided microwave beam, measuring the excess of microwave radiation energy arrested over the energy reflected and producing an output signal which is representative of the presence of such excess.

摘要翻译： 一种生产用于非导电材料的片状物品的识别信号的方法，该物品通过引入少量非常薄的导电纤维而被标记用于鉴定目的，该导电纤维能够吸收和反射某些相当大比例的微波辐射 冲击其上的能量，其包括将其中非常薄的导电纤维的非导电纤维的一部分放置在非导向微波束的路径中的部分，测量在反射的能量上阻止的微波辐射能量的过量，并产生代表性的输出信号 存在这样的过剩。