User Manual

MMS
®
Inspection DFT High 45
Glossary
Max • Largest single reading measured in a block
• Largest spot value measured in an Area or Location
• Largest mean value of all Area mean values
Min • Smallest single reading measured in a block
• Smallest spot value measured in an Area or Location
• Smallest mean value of all Area mean values
RdNo Measurement reading number
No Block number
USL Upper specification limit
n Number of measured blocks
nAr Number of measured areas
nRd Number of all single readings measured
nSp Number of spots measured (SSPC PA2)
R The range R equals the difference between the largest measurement
reading (maximum) and the smallest measurement reading (minimum) in
a series of measurements
s Standard deviation from mean value
Spot Number of individual measurements per spot
LSL Lower specification limit
V[%] Coefficient of variation, percent variation of a series of measurements,
standard deviation in terms of the mean value
X Individual measurement
X Block mean value of a measurement block with n individual measure-
ments
Xar Area mean value of n spot values (spots) in an area
Population mean of n block mean values
ar Population mean of n area mean values
X
X