Section 4 — Measurement Types and their Uses
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Waveform
Waveforms show how vibration levels change over time. A vibration
waveform chart represents a series of equally spaced discrete sample
points connected by straight lines. The chart shows the vibration level
(amplitude) at each time interval during the measurement period. The
more sample points in a spectrum, the higher the resolution of the
waveform (but the more memory used).
The key parameters you need to set are the duration and number of
samples.
The duration determines the equivalent Fmax value. If you later transfer
the waveform to Ascent and display it as a spectrum, the Fmax value will
be used on the chart.
The number of samples controls the number of spectral lines used when
you transfer the waveform to Ascent and display it as a spectrum.
To access this measurement type:
1. Press or Measure.
2. Press Spectrum Waveform.
3. Press the arrow keys on the left to select an existing parameter set
(or press to create a new set).
4. Set the parameters as required.
5. Press to start measuring.
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