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2. Enter the
Number of values
you want to calculate the spectrum for. The pre-set
value is equal to the maximum applicable value.
The numb er values you enter for the calculation will b e
increased automatically to the next power of two.
Example: If you want to calculate a spectrogram for 1000
measure values, the calculation value will b e set to 1024
automatically. The calculated FFT will contain 512
measure values.
3. Define
% overlap
.
4. Click on
OK
.
The spectrogram is shown in the "Calculated FFT" diagram.
You can change the display under
FFT settings
in the work interface area (see
).
Difference cursor
You can use the
difference cursor
to calculate the difference between
two measured values.
To do this, place the base cursor and a difference cursor at the desired
measuring points in the diagram. The distance between the cursors is
indicated by a colored bar directly above the x-axis. Both measured
values obtained with the cursors and the resulting differential values
are displayed in the cursor information.
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