Text: The change in distance or position of an object. Displacement is typically a peak-to-peak measurement of the observed motion, and usually carries the units of mils or micrometers. Eddy current proximity probes measure displacement directly. Signal integration of a velocity signal is necessary to obtain displacement. An acceleration signal requires double integration to yield a displacement measurement. Integration of velocity and/or acceleration gives the dynamic component of the displacement only, i.e., no shaft position information is available.

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