5.7.5 Averaging Algorithm The Average algorithm averages the peaks or the valleys within your scope segment. Selecting above the curve will measure the average of peaks while selecting below the curve will measure the average of valleys. The peak average is calculated by adding the highest value with each peak and dividing by the number of qualified peaks based on the sensitivity. The valley average is calculated by adding the lowest value with each valley and dividing by the number of qualified valleys based on the sensitivity. Sensitivity Sensitivity is a percent value. It is the percent that qualifies a peak or a valley based on an equal percentage rise and fall. For example a sen- sitivity of 5 would look at all data within a defined scope region where the data for a rise and fall is at least 5% of greater. When the portion of the curve qualified against the sensitivity, it is highlited in blue. 5.7.5.1
If a rise on the curve for load was 5% (an increase in load from the start of the rise to the end of the rise (peak), and the fall on the curve was less than 5%, this portion of the curve would not qualify, therefore, the segment on the curve is not a valid peak and valley. This portion of the curve would not highlight in blue. Averaging Algorithm Scope The scope for the Average algorithm is based on two specific points that defined the end points of a data segment. 5.7.5.2
You may position the scope handles along either the y-axis or x-axis to define the data segment where you are interested in analyzing.
Or, you may implicitly specify your start and end scope points using values or other coefficients that can be used as anchors. Anchored coefficients display in yellow.
Average Peak Valley
Peak/Valley Tools
Load is our dependent variable. Moving the handle upwards reduces the sensitivity value. Moving the handle downward increases the sensitivity.
Selecting above the curve measures peaks. The blue highlited peaks qualify as peaks with a sensitivity of 5% for the scope segment. The average is calculated using the greatest load value for each of the 5 peaks within the scope range.
The scope segment starts at 40mm and ends at 80mm.
Peel test using Peak/Valley Measurement Shows the Load Average of Peaks for the scope segment (40-80mm) and a sensitivity of 5%
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