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CAPACITANCE TYPE PRESSURE SENSOR

  • US 20090301211A1
  • Filed: 06/11/2007
  • Published: 12/10/2009
  • Est. Priority Date: 06/27/2006
  • Status: Abandoned Application
First Claim
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1. :

  • A method for measuring changes in the physical volume of a medium that is measured, comprising the steps of;

    measuring two capacitances wherein the relative relationships between the capacitances will vary in accordance with the change of the physical volume of the medium to be measured, wherein the measuring step comprises the step of;

    measuring each individual capacitance values independently, anddetermining that there is an disconnect fault when at least one of the individual capacitance values is less than a capacitance value indicated by a normal operating range for the capacitance-type pressure sensor.

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