Using The Scope
Acquiring Waveforms
1
21
3
Jump to
Waveform:
and Select
Mathematics...
to open the
Mathematics
menu.
4
Select Function:
A+B
,
A-B
,
AxB
or
A vs B
.
5
Select a scale factor to fit the
mathematical result waveform onto
the display, and return.
The sensitivity range of the mathematical result is equal to
the sensitivity range of the least sensitive input divided by
the scale factor.
Using Mathematics Function Spectrum (FFT)
The Spectrum function shows the spectral content of the
input A or input B waveform. It performs an FFT to
transform the amplitude waveform from the time domain
into the frequency domain.
To reduce the effect of side-lobes (leakage) it is
recommended to use auto windowing. It will automatically
adapt the part of the waveform that is analyzed to a
complete number of cycles
Selecting Hanning, Hamming or no windowing results in a
faster update, but also in more leakage.
Ensure that the entire waveform amplitude remains on the
screen.
To use the Spectrum function, do the following:
1
Display the
SCOPE
key labels.
2
Open the
Waveform Options
menu.
Summary of Contents for 19xC
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Page 36: ...Fluke 19xC 2x5C Users Manual 26...
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Page 146: ...Appendices Appendix Title Page Bushealth Measurements A 1...
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