Abstract: A method of removing bias drift from the output signal of a sensor is provided. The method includes sensing a condition with a sensor and generating an output signal, differentiating the output signal, and comparing the differentiated output signal with a threshold change. The method also includes the steps of determining the presence of bias drift based on the comparison, generating a bias adjustment command signal based on the determined presence of bias drift, and adjusting the sensed signal generated by the sensor in accordance with the bias adjusted command signal so as to remove bias drift from the output signal.