Fluke Digital Multimeter - Page 36

©Fluke Calibration 2011 Basics Of Measurement Uncertainty for DMM Calibration 36
u
1
– estimated standard uncertainty
Calculate the Standard Deviation of the Mean
− Probability Distribution = Normal
− Sensitivity Coefficient = 1
− Degrees of Freedom = 4
mA
mAs
n
u 4.11
5.25
5
1 
Grouped around a value
Direct influence on response
Based on 5 independent
measurements