Analyze Waveform Data
Description Window
Hanning
This is a very good window for measuring amplitude accuracy but less so for resolving frequencies.
Use Hanning for measuring sine, periodic, and na rrow band random noise. This window works on
transients or bursts where the signal levels before and after the event are significantly different.
Blackman-Harris:
This is the best window for measuring the amplitude of frequencies but worst at resolving
frequencies.
Use Blackman-Harris for measuring pred ominant ly single frequency waveforms to look for higher
order harmonics.
Using Advanced Math
The advanced math featu re lets you create a custom math waveform expre ssion that can incorporate active and reference
waveforms, measurem ents, and/or numeric constants. To use this fea ture:
1. Push Math.
DPO4000 Series User Manual 157
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