TITOLARE DEL CORSO
Francesca Pennecchi
DESCRIZIONE
The Guide to the expression of uncertainty in measurement (GUM), published in 1995 by BIPM, IEC, IFCC, ISO, IUPAC, IUPAP and OIML has now served well for many years, providing a common, universally agreed procedure for uncertainty evaluation. The Working Group 1 of the Joint Committee for Guides in Metrology (JCGM-WG1) published two supplements to the GUM (JCGM 101:2008 and JCGM 102:2011), and it is currently developing a number of new documents in order to overcome some of the limitations intrinsic in the GUM approach.
In this course, the main aspects of the uncertainty evaluation will be addressed together with their application to a number of metrological examples. Relevant references and available software will be discussed.
ARGOMENTI TRATTATI
- The Joint Committee for Guides in Metrology (JCGM) and its documents
- Basic probability concepts
- The GUM (JCGM 100:2008)
- Definitions, concepts, metrological terms
- Measurement model
- Estimation of the measurand
- Evaluation of the input standard uncertainties (Type A and Type B)
- Evaluation of the input covariances
- Law of propagation of uncertainty (LPU)
- Linearization of the model
- Expanded uncertainty and coverage intervals
- Limitations to the GUM applicability
- Supplement 1 to the GUM (JCGM 101:2008): Propagation of distributions using a Monte Carlo method (MCM for univariate models)
- Supplement 2 to the GUM (JCGM 102:2011): Extension to any number of output quantities (LPU and MCM for multivariate models)
- Software for uncertainty evaluation
- Examples from several fields of application
- Hints on Bayesian inference and conformity assessment according to JCGM 106:2012
NUMERO ORE
20
FREQUENZA
Biennale
LIVELLO
Intermedio