GMC Chevrolet Camaro 1998 Service Manual page 102

0-90 Vibration Diagnosis and Correction
Frequency
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Legend
(1) Amplitude
(2) Reference
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2
Frequency is defined as the rate at which an event
occurs during a given period of time. With a vibration,
the event is a cycle, and the period of time is one
second. Thus, frequency is expressed in cycles per
second.
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1
1
(3) Time in Seconds
(4) 1 Second
General Information
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95590
The proper term for cycles per seconds is Hertz (Hz).
This is the most common way to measure frequency.
Multiply the Hertz by 60 to get the cycles or revolutions
per minute (RPM).
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