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Calibration structure for flex fuel sensor

  • US 8,274,298 B2
  • Filed: 11/10/2009
  • Issued: 09/25/2012
  • Est. Priority Date: 11/10/2009
  • Status: Active Grant
First Claim
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1. A calibration structure for calibrating a flex fuel sensor for a vehicle, the flex fuel sensor having a first sensor electrode and a second sensor electrode, the calibration structure comprising:

  • a first electrode,a second electrode spaced from and electrically insulated from the first electrode, andat least one capacitor, or at least one resistor, or at least one combination of a capacitor with a resistor, of a certain value electrically connected with the first and second electrodes,wherein the first and second electrodes are separated from the first and second sensor electrodes and wherein the first electrode is constructed and arranged to be moved into contact with the first sensor electrode and the second electrode is constructed and arranged to be moved into contact with the second sensor electrode to provide a known input value to the flex fuel sensor for calibration of the flex fuel sensor without the use of test liquids.

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