Method and apparatus for monitoring a rotatable member
A apparatus and associated method for tracking a rotatable member is described, and includes a target wheel coupled to the rotatable member, and a detector that’s disposed to monitor the target wheel. The detector is configured to produce a signal related to rotation of the target wheel. A controller is in communication with the sensor and includes an instruction set that is executable to dynamically monitor the signal created by the detector during spinning of the target wheel and then determine a size of an airgap between the detector and the target wheel based upon the sign. A version in the size of the airgap between the detector and the target wheel can be determined based upon the sign, and a fault related to the rotating member may be determined based upon the version in the size of the airgap.
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