Open AccessTOTAL UNCERTAINTY IN THE PRODUCT LIFE CYCLE - AN EXAMPLE ON COORDINATE MEASUREMENT SYSTEMS
Author(s) -
Branko Štrbac,
Miloš Ranisavljev,
Biserka Runje,
Antonín Novák,
Andrej Razumić,
Miodrag Hadžistević
Publication year - 2021
Publication title -
journal of production engineering
Language(s) - English
Resource type - Journals
eISSN - 2956-2252
pISSN - 1821-4932
DOI - 10.24867/jpe-2021-01-035
Subject(s) - measurement uncertainty , flatness (cosmology) , uncertainty analysis , coordinate measuring machine , sensitivity analysis , interval (graph theory) , confidence interval , observational error , product (mathematics) , level of measurement , interval arithmetic , system of measurement , computer science , standard uncertainty , mathematics , statistics , algorithm , engineering , mechanical engineering , geometry , mathematical analysis , physics , cosmology , quantum mechanics , combinatorics , astronomy , bounded function
The measurement result if expressed without confidence interval estimate it is not complete. Confidence Interval is characterized as uncertainty and is a quantitative indicator of the measurement result quality. Measurement uncertainty is mainly caused by factors such as measuring instrument, operator, workpiece, applied strategy and/or measurement conditions. GPS, a standard defining geometrical specification and product verification, integrates the entire product geometry description and defines uncertainty at each stage. The result is a total uncertainty which is usually significantly greater than measurement uncertainty (sometimes twice greater). This study provides a method for estimating total measurement uncertainty of determining flatness error using coordinate measuring machines (CMM).