5.7.4 Count Algorithm The Count algorithm determines the number of peaks or the number of valleys. Selecting above the curve will measure for peaks, while selecting below the curve will measure for valleys.
5.7.4.2 Count Algorithm Scope The scope for the Count algorithm is based on two specific points that defined the end points of a data segment.
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.
Peaks and valleys are determined based on the scope segment and the sensitivity you specify.
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. Count Algorithm Name The Count algorithm name may be changed from its default of Lcnt when based on load. For example, you may rename L#. 5.7.4.3
5.7.4.1 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. 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.
The result name may be up to 8 characters in length and may use special characters.
Count Peak Valley
Peak/Valley Tools
Six (6) valleys are found to qualify at a sensitivity of 5% and for the scope segment starting at 40mm and ending at 80mm.
Since the data stream is continuing to move downward continuously with only minor increases in load, this is viewed as a single valley.
Load is our dependent variable for a valley. Moving the handle downwards reduces the sensitivity value. Mov- ing the handle upward increases the sensitivity.
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The scope segment starts at 40mm and ends at 80mm.
Peel test using Peak/Valley Measurement Shows the number of Valleys (Count) for the scope segment and a sensitivity of 5%
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