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CAPACITIVE FRINGING FIELD SENSORS AND ELECTRICAL CONDUCTIVITY SENSORS INTEGRATED INTO PRINTED CIRCUIT BOARDS

  • US 20150338363A1
  • Filed: 05/13/2015
  • Published: 11/26/2015
  • Est. Priority Date: 05/13/2014
  • Status: Abandoned Application
First Claim
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1. A device, comprising:

  • a capacitive fringing field interdigitated electrode sensor integrated into a printed circuit board and configured to sense an electrical impedance of soil; and

    an electrical conductivity sensor integrated into the printed circuit board and configured to sense an electrical conductivity of surrounding soil, wherein the sensed electrical impedance and the sensed electrical conductivity are indicative of chemical properties of the soil.

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