Numerical - CLA value of roughness - Metrology & Quality Control
Q. Calculate CLA value of roughness for a graph, having 100 horizontal magnification and 10000 vertical magnification for a sampling length of 1.2 mm. The areas above the datum line are 100 mm2, 120 mm2, 140 mm2, 40 mm2 and below the datum line are 80 mm2, 40 mm2, 150 mm2, 90 mm2.- Published on 07 Aug 15a. 0.6333 micron
b. 6.333 micron
c. 0.912 micron
d. 0.079 micron
ANSWER: 0.6333 micron