Patent ID: 8924190

Claim:
A method of correcting a temperature measurement signal delivered by a sensor, the method comprising: digitally modeling the temperature measured by the sensor by using a modeled signal; estimating a lag error signal for the sensor from the modeled signal and a signal obtained by filtering the modeled signal, the filter having as a parameter an estimate of a time constant of the sensor; and correcting, using a processor, the measurement signal delivered by the sensor by the estimated lag error signal; wherein the time constant of the sensor is estimated as a function of time from the measurement signal and the modeled signal wherein, to estimate the time constant of the sensor, the following operations are performed: (a) obtaining first and second signals, respectively, by differentiating the measurement signal and the modeled signal; (b) evaluating a difference between the absolute value of the first signal and the absolute value of the second signal; and (c) estimating the time constant of the sensor from the evaluated difference.