6-2
Analytical Functions
Figure 6-1: Analytical Functions Dialog Box from Data Plot Window
If you plan to conduct extensive surface texture analysis, refer to the ANSI B46.1 specification on
surface texture. You can obtain a copy of this specification from the American Society of Mechanical
Engineers, 345 East 47th Street, New York, NY 10017, telephone number: 1-800-843-2763, web site:
www.asme.org.
ROUGHNESS PARAMETERS
The following parameters are listed alphabetically.
Maxdev (Maximum Deviation)
Calculates the furthest data point above or below the mean line.
MaxRa (Maximum Ra)
Identifies the portion of the assessment length that has the highest Ra. The assessment length,
defined by the cursors, divides into nineteen overlapping segments. Each segment is equal to
one-tenth of the assessment length distance. The Ra is calculated for each segment. The R
cursor positions in the center of the segment with the highest Ra. You can program only one
MaxRa into a scan program.
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