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Integrated capacitive sensor system for the measurement of resistivity and dielectric constant in geophysical, environmental, groundwater and related applications

  • US 20060158199A1
  • Filed: 01/19/2005
  • Published: 07/20/2006
  • Est. Priority Date: 01/19/2005
  • Status: Active Grant
First Claim
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1. A capacitive sensor system for measuring environmental parameters, comprising:

  • a capacitive array;

    an oscillator coupled to the capacitive array and having a frequency of oscillation that is a function of the capacitance of the capacitive array; and

    an isolated power supply for the oscillator circuit;

    wherein the frequency is representative of an environmental parameter.

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