PPA55xx Quick User Guide
Page 45
6.4 SPEED AND SMOOTHING
Within this section we will look at how the speed and smoothing parameters set
within the Acquisition menu affect the measurement results
NOTE: All measurement windows must have an integral number of cycles within
it to calculate correct RMS and Harmonics
Input = 50Hz Sine Wave
Amplitude = 1Vpk & 2Vpk range
The first sets of results are from a
Datalog conducted with NO
smoothing selected thus the data
update will be dictated by the speed
parameter only
Speed set to medium = 3 updates
per second
50Hz input signal = 50 cycles worth of data points per second recorded,
analyzed, adjusted and displayed within 3 update windows
Displayed left is the graph showing
the Datalog results with no
smoothing present and the input
amplitude switching between 1Vpk
and 2Vpk from this graph it is clear
that as soon as the amplitude is
increased or decreased then the next
available update will show this
change
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