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TitraLab
®
Smoothing
parameter
Software
version
Page 232
The Smoothing parameter is a filter used in IP continuous method. It is
used to eliminate false inflection points that might appear on noisy
curves. Increasing the Smoothing parameter will decrease the ability
to detect weak inflection points. While determining the inflection point
of an IP Continuous method, the first derivative curve is smoothed
point by point as follows (s is the Smoothing parameter):
d Potential (or pH)/dVolume
dE(n+s)
dE(n)
dE(n-s)
Changing the smoothing parameter has no effect on the measure-
ment points, only on IP determination and result calculation.
The smoothing parameter will generally be set to 5 (default value).
You can increase this value to eliminate a weak IP.
Enter in:
Parameters menu of a Continuous IP method.
Range available:
0 to 20
The software version is displayed in the title bar of the Setup menu.
The version is also displayed for a few seconds while switching on the
instrument.
TitraLab 870 Reference Manual
dE(n) =
x
x
x
x
x
x
x
V(n-s)
V(n+s)
V(n)
Figure 41: Smoothing process
dE(n+s) - dE(n-s)
V(n+s) - V(n-s)
Volume
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