The 10-point average roughness is stipulated as the “sum of the average value of the
absolute values of the deviation from the centerline between the largest deviation
and the fifth deviation, and the average value of the absolute values of the deviation
between the smallest deviation and the fifth deviation.
Average line
Z
L
Z
p1
Z
p2
Z
p3
Z
p4
Z
p5
Z
v1
Z
v2
Z
v3
Z
v4
Z
v5
5
5
4
3
2
1
5
4
3
2
1
v
v
v
v
v
p
p
p
p
p
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Rzjis
+
+
+
+
+
+
+
+
+
=
•
Maximum difference between high and low (Rz)
Stipulated as the “difference between the maximum value Z
max
and the minimum
value Z
min
of the height z, on the analysis screen”.
min
max
Z
Z
Rz
−
=
This value is also shown on the vertical axis of the line plot.
•
Length of the line plot (Length)
Indicates the length L of the line plot. This value is also shown on the horizontal
axis of the line plot.
Results of performing measurement on the line plot
The results of performing measurement on the line plot are displayed.
In measurement analysis, the
●
and
■
markers displayed in the cross-sectional graph
form a set, enabling you to perform a total of three measurement analyses. Each set is
identified according to the display color.
Z1
■
Z2
|Z1-Z2|
Length
Angle
●
Length
|Z1—2|
Angle
Z2
Z1
Z1:
Height at
●
marker position
Z2:
Height at
■
marker position
|Z1-Z2|: Absolute value of difference between high and low at the
●
marker
position and the
■
marker position
Length:
Distance in the horizontal direction between the
●
marker position and the
■
marker position
6-38
TMPM5200-2
