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    • 4. 发明授权
    • Induction sensor using printed circuit
    • 感应传感器采用印刷电路
    • US07071685B2
    • 2006-07-04
    • US10736503
    • 2003-12-17
    • Leon SaltsovVolodymyr BarchukSergiy AndrosyukDmitro BaydinVitaliy GrzhibovskyyYevgeniy YavorskyyGennadiy Gaponyuk
    • Leon SaltsovVolodymyr BarchukSergiy AndrosyukDmitro BaydinVitaliy GrzhibovskyyYevgeniy YavorskyyGennadiy Gaponyuk
    • G01N27/82
    • G07D7/04G01D5/204H01F17/0013H01F19/08H01F21/06H01F27/2804H01F2017/0073
    • A planar induction sensor for sensing of security features of documents having changing magnetic and (or) conducting properties is of a multilayer printed circuit board design. The sensor comprises a planar current transformer with a spiral-type primary coils and one or several turns of secondary coil in an adjacent layer of the printed circuit board. The secondary coil of the current transformer is connected to an operating coil, which is situated at a sensing edge of the sensor. The operating coil can be formed by external wires or can be incorporated in the circuit board of the current transformer. When a security element, made from the magnetic or conductive material moves past the sensing edge of the sensor, a change in inductance of the induction sensor occurs. In a preferred embodiment, two induction sensors with individual associated electronic circuits were located on opposite sides of validator channel. Analysis of both signals from the sensors allows correction of the signal to reduce variation caused by changing distance of the security document from each sensor.
    • 用于感测具有变化的磁性和(或)导电性质的文件的安全特征的平面感应传感器是多层印刷电路板设计。 传感器包括具有螺旋型初级线圈的平面电流互感器和印刷电路板的相邻层中的一匝或多匝次级线圈。 电流互感器的次级线圈连接到位于传感器的感测边缘的操作线圈。 工作线圈可以由外部导线形成,也可以并入电流互感器的电路板。 当由磁性材料或导电材料制成的安全元件移动经过传感器的感测边缘时,感应传感器的电感发生变化。 在优选实施例中,具有各个相关联的电子电路的两个感应传感器位于验证器通道的相对侧上。 分析来自传感器的两个信号允许校正信号以减少由安全文件距每个传感器的距离变化引起的变化。
    • 5. 发明授权
    • Capacitance sensor for coin evaluation
    • 用于硬币评估的电容传感器
    • US06907977B1
    • 2005-06-21
    • US09546907
    • 2000-04-10
    • Vladymir Barchuk
    • Vladymir Barchuk
    • G07D5/02G07D5/08G07D5/10
    • G07D5/02G07D5/08G07D5/10
    • A capacitance sensor measures a coin to determine geometrical parameters thereof and to allow assessment of different geometrical parameters of a coin which influence the measured capacitance. In a preferred arrangement, a mechanical arrangement alters the capacitance between two electrodes as a function of the diameter of the coin. This assessment is used in combination with a further measured capacitance which is a function of coin diameter, coin thickness and surface relief of the coin. The initial evaluation of diameter is useful in determining the separate influences of coin thickness and surface relief. The invention is also directed to the method of coin evaluation.
    • 电容传感器测量硬币以确定其几何参数,并且允许评估影响所测量的电容的硬币的不同几何参数。 在优选的布置中,机械布置根据硬币的直径来改变两个电极之间的电容。 该评估与另外测量的电容结合使用,该电容是硬币直径,硬币厚度和硬币表面浮雕的函数。 直径的初步评估可用于确定硬币厚度和表面浮雕的单独影响。 本发明还涉及硬币评估方法。
    • 7. 发明授权
    • Induction sensor having conductive concentrator with measuring gap
    • 感应传感器具有带测量间隙的导电集中器
    • US6057683A
    • 2000-05-02
    • US50919
    • 1998-03-31
    • Vitold A. Khvostov
    • Vitold A. Khvostov
    • G01V3/10G06K7/08G01R33/12G01N27/72G07D7/04
    • G06K7/084G01V3/10
    • An induction head for sensing a magnetic strip or other magnetically permeable security structures includes an exciting coil associated with an electrically conductive concentrator, which produces a primary field and induces a responsive secondary field in the concentrator. The concentrator has an endwall and sidewalls defining a central cavity. The endwall has a narrow measuring gap dividing the endwall into two opposed sections. The sidewalls are also interrupted adjacent the measuring gap to cause a concentrated current of the secondary field to pass along the gap. This concentrated current can be monitored for a change in induction due to the presence of an elongate magnetic strip or other magnetically permeable security structure which is moved past the measuring gap.
    • 用于感测磁条或其他导磁安全结构的感应头包括与导电集中器相关联的激励线圈,其产生主场并且在集中器中引起响应的次级场。 集中器具有限定中心腔的端壁和侧壁。 端壁具有狭窄的测量间隙,将端壁分成两个相对的部分。 侧壁在测量间隙附近也被中断,导致次级场的集中电流沿着间隙传递。 由于存在细长的磁条或其它可移动通过测量间隙的可导磁的安全结构,因此可以监测该集中电流的感应变化。