Sensor for measurement for wet and dry fingers
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    发明申请
    Sensor for measurement for wet and dry fingers 有权
    用于湿手指和干手指的测量传感器

    公开(公告)号:US20050069178A1

    公开(公告)日:2005-03-31

    申请号:US10497847

    申请日:2002-12-06

    CPC分类号: G06K9/0002

    摘要: Sensor device for performing measurements on an at least partially conductive surface, the sensor comprising a number of conductive structures at or directly below the sensor surface, said conductive structures consisting of at least one stimulation or current sink electrode 1 and a number of sensor elements 3 coupled to interrogation electrodes in an electronic circuit for measuring impedance between the electrodes 3 and said at least one stimulus electrode 1, the sensor device also comprising at least one additional clamping electrode being positioned in the vicinity of said sensor elements and being coupled to a chosen voltage.

    摘要翻译: 用于在至少部分导电表面上进行测量的传感器装置,所述传感器包括位于传感器表面处或正下方的多个导电结构,所述导电结构由至少一个刺激或电流吸收电极1和多个传感器元件3组成 耦合到用于测量电极3和所述至少一个刺激电极1之间的阻抗的电子电路中的询问电极,所述传感器装置还包括至少一个另外的夹持电极,其位于所述传感器元件附近并被耦合到所选择的 电压。