Futek IPM650 - Page 46

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A
B
Max/Min Diff
Figure No.3
Max/ Min Differentiation
X %
Caution should be taken in defining X, for the Max/Min Diff.
For example:
Consider the following data at points A and B:
A: 100 IL
B: 90IL
If X is considered less than 10%, A would not be considered as first peak, or B would not be considered as
first valley.