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公开(公告)号：EP1014312A4
公开(公告)日：2006-02-01
申请号：EP99907902
申请日：1999-03-10
申请人： NIPPON CONLUX CO LTD
发明人： FURUYA YONEZO
摘要： A method and device for detecting a coin, wherein one of a plurality of coils (1a, 1b, 1c) is selectively connected to an oscillation unit (4) via a switching unit (2) and a coin is detected based on an output from an oscillation circuit comprising the connected coil (one of 1a, 1b, 1c) and the oscillation unit (4).
摘要翻译： 一种用于检测硬币的方法和装置，其中多个线圈（1a，1b，1c）中的一个经由开关单元（2）选择性地连接到振荡单元（4），并且基于来自 包括连接的线圈（1a，1b，1c中的一个）和振荡单元（4）的振荡电路。
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公开(公告)号：EP0978807A4
公开(公告)日：2002-03-06
申请号：EP99905308
申请日：1999-02-25
申请人： NIPPON CONLUX CO LTD
发明人： FURUYA YONEZO
摘要： A method and device for checking a coin for forgery by means of a difference in an uneven pattern on a coin surface, wherein an exciting coil is disposed in the vicinity of a passage wall on one side of a coin passage inclined at a preset angle so that the two magnetic poles of the exciting coil face the coin passage, and two receiving coils having approximately identical characteristics are disposed in the vicinity of the same passage wall for electromagnetic coupling with the exciting coil. The exciting coil is excited at a preset frequency to detect by the receiving coil an effect on a diamagnetic field by an eddy current produced on a coin surface. A different uneven pattern on the coin surface generates a different diamagnetic field strength to enable us to check the coin for forgery. The device, simple in construction and inexpensive to construct, can discriminate a coin of approximately the same material, shape and thickness according to a difference in its surface pattern.
摘要翻译： 一种通过硬币表面上的不平坦图案的差异检查硬币的方法和装置，其中励磁线圈设置在以预设角度倾斜的硬币通道的一侧的通道壁附近 励磁线圈的两个磁极面对硬币通道，具有大致相同特性的两个接收线圈设置在同一通道壁附近，用于与励磁线圈电磁耦合。 励磁线圈以预设频率激励，以通过接收线圈检测硬币表面上产生的涡流对抗磁场的影响。 硬币表面上的不同凹凸图案产生不同的抗磁场强度，以使我们能够检查硬币是否伪造。 该设备结构简单并且构造成本低廉，可根据其表面图案的差异区分硬币具有大致相同的材料，形状和厚度。
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