Text: A source of error on the output of signal of a proximity probe transducer system; a probe gap change which does not result from either a shaft center position change or shaft dynamic motion. Common sources include out-of-round shafts, scratches, chain marks, dents, rust or other conductive buildup on the shaft, stencil marks, flat spots, and engravings.

See Also: RUNOUT; ELECTRICAL RUNOUT

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