Patent ID: 7461535

Claim:
A method of calibrating at least one sensor having at least one associated output parameter that is temperature dependent, comprising the steps of: disposing said at least one sensor on a thermal chuck; adjusting a temperature of said thermal chuck to at least one first specified level, thereby setting a temperature of said at least one sensor to approximately the first specified level; taking a first measurement of said output parameter associated with said at least one sensor while the temperature of said at least one sensor is set to approximately the first specified level; adjusting the temperature of said thermal chuck to at least one second specified level, thereby setting the temperature of said at least one sensor to approximately the second specified level; taking a second measurement of said output parameter associated with said at least one sensor while the temperature of said at least one sensor is set to approximately the second specified level; calculating a temperature coefficient of said output parameter based upon the first and second measurements of said parameter performed at approximately the first and second temperature levels, respectively; determining at least one calibration value based upon the temperature coefficient of said output parameter; and employing said at least one calibration value to compensate and calibrate said output parameter associated with said at least one sensor.