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Measuring method for a capacitive measuring system

  • US 6,707,306 B1
  • Filed: 08/03/2001
  • Issued: 03/16/2004
  • Est. Priority Date: 02/08/1999
  • Status: Expired due to Term
First Claim
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1. A method for determining the capacitive coupling of at least two electrodes with an electrically conductive body, said method comprising the steps of:

  • applying an AC voltage to each of said electrodes;

    measuring the currents flowing from each of said electrodes n times, n≦

    2, wherein different AC voltages are applied to said electrodes for each of said n measurements;

    setting said AC voltage applied to each of said electrodes in an (i+1)-th measurement in dependence upon a result of an i-th measurement, 1≦

    i≦

    n−

    1; and

    utilizing said measured currents and voltage values of said n measurements in a network analysis to calculate said capacitive coupling.

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