Nouvelle formation en métrologie – Measurement uncertainty

L'ILNAS propose une nouvelle formation en métrologie en anglais qui détaille pas à pas les méthodes d'évaluation de l'incertitude de mesure, selon les approches statistiques proposées dans les guides de référence internationaux publiés par le Bureau international des poids et mesures (BIPM). Cette formation a été développée grâce à un partenariat entre l'ILNAS et l'Université du Luxembourg et est animée par un de ses professeurs, spécialisé en la matière. Tous les détails sont disponibles ici.

Context and purpose of the training

A calibration, test or analysis result must be accompanied by its uncertainty. This is a normative requirement, it can also be an opportunity to take a step back to reflect on the measurement process in order to better control it by identifying and evaluating the different sources of uncertainty.

This training is designed in a structured and progressive way to assess measurement uncertainties according to the reference approach (GUM) and the extension to the Monte-Carlo method.

Goals

  • Understand the interest of measurement uncertainty.
  • Assimilate the basic vocabulary and concepts for the evaluation of uncertainties.
  • Know how to evaluate the uncertainty associated with a measurement result according to the GUM method.
  • Know and apply the principle of the Monte Carlo method.
  • Have the necessary tools for assessing uncertainties, based on the most recent texts.

Program

  • Introduction
  • Measurement uncertainties - Why?
  • Some definitions
  • Reminder of statistical notions
  • Errors, effects and corrections
  • Accuracy/bias, fidelity and exactness
  • The GUM methodology
  • Expression of the result and Rounding rule
  •  Examples of uncertainty balance sheet or uncertainty budget
  • Examples of calibration certificate
  • Monte Carlo method - Supplement 1 of the GUM
  • Conclusion.

Pedagogical method

Conventional presentation. Exchange and discussion. Presentation of examples from the standards.

Exercises (stated and corrected).

Target audience

Staff of test or calibration laboratories: metrology manager, technical manager, test engineers, quality manager, technicians, etc.

Necessary tools

Laptop with Excel spreadsheet (or equivalent).

Duration

Two days (a detailed program can be sent on request).

Trainer

Pr. Christophe Ley - Professor of Mathematics & Applied Statistics - University of Luxembourg


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