2D (Profile) Stylus Parameters
Stylus (X,Y) Pc
Stylus (X,Y) Pc the Peak Density Along (X,Y), measures the number of peaks per unit length in the X and Y directions respectively. A peak is defined as when the profile intersects consecutively a lower and upper boundary level set at a height above and depth below the mean line, equal to Ra, for the profile being analyzed.
Stylus X Pc and Stylus Y Pc are
useful parameters for assessing the peak density (e.g. peaks/mm) along
a given direction. Applications involved in coating a surface, or when
fluid leakage/retention are of issue may make use of the Pc parameters
to optimize the surface texture design. Sometimes the combination of parameters
such as Rz with Pc will yield additional
information about the spacing and depth of dominant surface features that
the function of a component.