Setting Spectrum Parameters - Commtest Instruments vb Series Instrument Reference Manual

Setting Spectrum Parameters

A vibration spectrum is a chart of vibration amplitude versus vibration
frequency. The vibration spectrum of a machine component shows
the frequencies at which the component is vibrating and the
amplitude of vibration at each of these frequencies.
vb spectra consist of discrete spectral lines displayed at fixed
frequency intervals. The height of each spectral line represents the
amplitude of vibration at the frequency the spectral line is positioned.
The more spectral lines in a spectrum, the higher the resolution of
the spectrum (but more memory is used).
The vibration spectrum of a vibrating machine component is the
basic tool for understanding the nature of the vibration. To ensure a
spectrum is as informative as possible, the measurement parameters
that are used to obtain the spectrum must be set appropriately.
•
To begin setting measurement parameters, from the Main
Menu press
Parameters Menu.
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A simplified illustration of a discrete vibration spectrum
then press
Section 4: Manual Setup Measurement Parameters
to display the Set
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