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Displacement current method and apparatus for remote powering of a sensor grid

  • US 7,170,821 B1
  • Filed: 07/23/2004
  • Issued: 01/30/2007
  • Est. Priority Date: 07/23/2004
  • Status: Active Grant
First Claim
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1. An apparatus for remotely powering at least one sensor on the exterior of a surface, comprising:

  • a materials stack disposed over the exterior of the surface, in which said at least one sensor is embedded; and

    a means for generating an alternating current across said materials stack, thereby inducing capacitance in said materials stack, thereby causing a displacement current to flow to the at least one sensor.

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