Mitutoyo SJ-210 - Mr2 (JIS2001, ISO1997, VDA, Free): Material-Ratio Length Rate 2 (Lower Relative-Material-Ratio Length)

No. 99MBB122A
18-38
18.5.30 Mr2 (JIS2001, ISO1997, VDA, Free): Material-ratio length rate 2 (lower
relative-material-ratio length)
From the lines that are obtained by selecting 2 points (point A and point B) on the BAC
(material-ratio profile) that differ in mr value by 40%, obtain the line with the smallest
inclination. Set point C and point D to be the points where the obtained line intersects the
lines at mr = 0 and mr = 100. Set point E to the point on the BAC with the same slice level
as point D. Mr2 is the mr value at point E. (Material-ratio length rate 2)
Mr2
D
G
H
C
A
B
E
A2
A1
Rk
Rvk
Mr1
Mr2
40%
J
F
Rpk
I
Rvk
DEP
TH (

m)
mr[c] (%)