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Fluid level sensing utilizing a mutual capacitance touchpad device

  • US 20070236469A1
  • Filed: 03/30/2006
  • Published: 10/11/2007
  • Est. Priority Date: 03/30/2006
  • Status: Abandoned Application
First Claim
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1. A system for performing fluid level determination of at least one fluid, said system comprising:

  • a sensor array formed from a substrate and a plurality of conductive elements disposed thereon that create an array of sensor electrodes, wherein the sensor array includes at least one sensing surface;

    touchpad sensor circuitry coupled to the sensor array for receiving signals from the sensor array that are indicative of electrical properties of the at least one fluid;

    the at least one fluid disposed adjacent to the sensor array and which is in a proximity sensing range thereof; and

    wherein the touchpad sensor circuitry provides data regarding a level of the at least one fluid relative to the at least one sensing surface of the sensor array.

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