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Real time self-adjusting calibration algorithm

  • US 20020161288A1
  • Filed: 05/08/2002
  • Published: 10/31/2002
  • Est. Priority Date: 02/23/2000
  • Status: Active Grant
First Claim
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1. A method of calibrating sensor data collected from a sensor, wherein a calibration formula based on past calibrations is used to interpret the sensor data, the method comprising the steps of:

  • obtaining a calibration reference value for the sensor;

    calculating a current calibration factor based on the calibration reference value and a current sensor data point;

    identifying either a possible error or change in sensitivity in the sensor from the current calibration factor; and

    confirming a sensor failure or recognizing a change in sensor sensitivity.

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