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A novel method of eliminating sensor defects is presented. The autocalibration method uses an on-chip actuator to generate reference signals to correct the sensor characteristics, ensuring reliable and accurate measurements. Autocalibration also eliminates the necessity of calibration at manufacturing, or during the lifetime of the sensor. This considerably reduces the cost of mass produced sensors.The on-chip actuator also provides the user with diagnostic information: self-test.To illustrate the effectiveness of the method, the principle is successfully applied to a silicon Hall device reducing the effects of the unstable sensitivity.

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