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US 6,237,394 B1Granted
Apparatus and method for correcting drift in a sensor
AssigneeRedwood Microsystems, Inc.
InventorsJames M. Harris, Babak Taheri, Errol Arkilic
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Abstract
A method of correcting drift in a sensor includes the step of identifying a calibration command. A nominal zero pressure sensor drift correction factor for the sensor is identified by relying upon a calibration voltage value and a calibration temperature value secured at a nominal zero pressure condition. Sensor output is subsequently adjusted according to the nominal zero pressure sensor drift correction factor.
Claims6
A method of correcting drift in a sensor, said method comprising the steps of:
- creating a nominal zero pressure condition in a conduit associated with the sensor;
- identifying a calibration command;
- establishing a nominal zero pressure sensor drift correction factor for said sensor relying upon a calibration voltage value and a calibration temperature value secured at said nominal zero pressure condition;
- and
- adjusting sensor output according to said nominal zero pressure sensor drift correction factor.
2 more elements
Dependencies are inferred from the claim text.