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Apparatus and method for measuring the permittivity of a substance

  • US 4,510,437 A
  • Filed: 07/29/1983
  • Issued: 04/09/1985
  • Est. Priority Date: 10/06/1980
  • Status: Expired due to Fees
First Claim
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1. An apparatus for measuring in situ the complex permittivity of a substance, the apparatus comprising:

  • a hollow ground plane conductor; and

    a center conductor, said center conductor being mounted within the hollow ground plane conductor and said center conductor being adjustable relative to the hollow ground plane conductor such that the capacitance of the apparatus can be varied, thereby measuring the complex permittivity of varying volumes of the substance.

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