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Matrix electrode design for three-dimensional e-filed sensor

  • US 10,352,976 B2
  • Filed: 03/05/2014
  • Issued: 07/16/2019
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. An electrode arrangement comprising:

  • a single transmitting electrode configured to generate a quasi-static alternating electric field which extends into an observation area;

    a first receiving electrode extending in a first direction and configured to be connected to an evaluation device as a receiving electrode;

    a second receiving electrode extending in a second direction different from the first direction, wherein the single transmitting electrode covers or surrounds at least an area defined by the first and second receiving electrodes;

    wherein for evaluating disturbances of the quasi-static alternating electric field caused by an object entering the electric field without touching the electrode arrangement, an enhanced sensitivity profile is obtained by combining signals from the first and second receiving electrodes to generate an electrode signal having the enhanced sensitivity profile.

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