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Vibration Analysis

- What is it?
The investigation of motion of a rotating or reciprocating system.  Frequency is often defined in terms of CPM (cycles per minute), or Hertz (cycles per second).  Amplitude is often defined in terms of peak velocity measured in inches per second.  Both frequency and amplitude are typically presented as a vibration spectrum plot.

- Why examine vibration?
Examination of vibration can provide a suprising amount of information about the system in motion, and is the single most valuable tool in machinery condition assessment.  Examination of frequency is used to identify vibration sources.  Amplitude is used to assess severity of vibration.  Establishing "why and how much" a machine is vibrating will help determine the health of the machine, the need for corrective action, and the course of action most likely to improve the running conditon of the machine.