©Fluke Calibration 2011 Basics Of Measurement Uncertainty for DMM Calibration 11
Measurement uncertainty in
metrology today…
Measurement errors were not rigorously evaluated in all
cases. Often in industrial labs, accuracy ratio analysis
(referred to as TUR’s or TAR’s or TSR’s) had been frequently
used to evaluate the significance of the calibrator’s errors on
the measurements. Other errors were sometimes ignored.
Individually analyzed, calculated, & documented measurement
uncertainties are more thorough and are required to be
considered - as stated in
− ANSI/ISO/IEC 17025:2005 General Requirements for the
Competence of Testing and Calibration Laboratories
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