DATA GATHERING SYSTEM
    1.
    发明申请
    DATA GATHERING SYSTEM 审中-公开
    数据采集​​系统

    公开(公告)号:US20150182170A1

    公开(公告)日:2015-07-02

    申请号:US14644670

    申请日:2015-03-11

    IPC分类号: A61B5/00 A61B5/04

    摘要: A device for gathering data has first and second electrodes. The first electrode is coupled to a surface of interest, and the second electrode is coupled to “everything else” or “the air”. The first electrode is shielded from the second, and from most sources of parasitic capacitance, by a shield that is driven by an active driver that drives the shield to track, and ideally to match, the instantaneous potential of the electrode. The second electrode is likewise shielded in a similar way from most sources of parasitic capacitance. These shields likewise help to limit the extent to which RFI from the device electronics couples with either of the electrodes. In this way the sensing device achieves a markedly better signal-to-noise ratio at frequency bands of interest.

    摘要翻译: 用于收集数据的装置具有第一和第二电极。 第一电极耦合到感兴趣的表面,并且第二电极耦合到“一切”或“空气”。 第一电极与第二电极和大多数寄生电容源隔离,该屏蔽由驱动屏蔽件的有源驱动器驱动,并且理想地匹配电极的瞬时电位。 同样地,第二电极以与大多数寄生电容源类似的方式被屏蔽。 这些屏蔽同样有助于限制来自设备电子器件的RFI与任一个电极耦合的程度。 以这种方式,感测装置在感兴趣的频带处实现明显更好的信噪比。

    Data gathering system
    2.
    发明授权

    公开(公告)号:US10376218B2

    公开(公告)日:2019-08-13

    申请号:US14644670

    申请日:2015-03-11

    摘要: A device for gathering data has first and second electrodes. The first electrode is coupled to a surface of interest, and the second electrode is coupled to “everything else” or “the air”. The first electrode is shielded from the second, and from most sources of parasitic capacitance, by a shield that is driven by an active driver that drives the shield to track, and ideally to match, the instantaneous potential of the electrode. The second electrode is likewise shielded in a similar way from most sources of parasitic capacitance. These shields likewise help to limit the extent to which RFI from the device electronics couples with either of the electrodes. In this way the sensing device achieves a markedly better signal-to-noise ratio at frequency bands of interest.