Patent ID: 11965790
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 12:
13. A system for diagnosing a sensor, comprising:
at least one processor; and
a non-transitory computer-usable medium embodying computer program code, the computer-usable medium capable of communicating with the at least one processor, the computer program code comprising instructions executable by the at least one processor and configured for:
subjecting the sensor to a positive voltage and a negative voltage, wherein the sensor comprises a circuit comprising a plurality of Wheatstone bridge circuit elements and is powered by the positive voltage and the negative voltage and reacts to at least one condition by a first sensor signal and a second sensor signal, the at least one condition comprising at least one of a first condition, a second condition or a third condition among a plurality of conditions, wherein a first Wheatstone bridge element among the plurality of Wheatstone bridge elements is most sensitive to the first condition, a second Wheatstone bridge element among the plurality of Wheatstone bridge elements is most sensitive to the second condition; and a third Wheatstone bridge element among the plurality of Wheatstone bridge elements is most sensitive to the third condition;
powering the sensor with elevation to avoid a saturation such that the first sensor signal and the second sensor signal provide a corresponding amplitude with respect to the at least one condition;
outputting a plurality of sensor signals from the sensor, the plurality of sensor signals including at least the first sensor signal and the second sensor signal;
detecting the plurality of sensor signals output from the sensor;
differentiating from among the plurality of sensor signals to distinguish inequalities in the plurality of sensor signals for an indication of a potential fault in the sensor;
wherein the step of differentiating further comprises:
identifying a smaller sensor signal with respect to a larger sensor signal among the first sensor signal or the second sensor signal of the plurality of sensor signals for the indication of the potential fault in the sensor; and
differentiating the smaller sensor signal from the larger sensor signal to indicate a large difference between the plurality of sensor signals to render detection of the potential fault in the sensor.