Measurement Uncertainty Overview

  • Delivery Option: On-Site Only
  • Subject Category: Technical
  • Number of Days: 1

Course Summary

This workshop presents a combination of lecture and classroom exercises to demonstrate the principles of measurement uncertainty analysis.

Target Audience

Calibration technicians, quality managers, engineers, quality technicians, and other users of uncertainty budgets.

Course Objectives

This workshop presents a combination of lecture and classroom exercises to demonstrate the principles of measurement uncertainty analysis.

Agenda

  • Basic Terminology
    • Why do we need uncertainty and what is it?
    • Importance of uncertainty in measurements
    • Uncertainty analysis concepts
    • Measurements, error and uncertainty
    • Uncertainty components (contributors to error)
    • Random and systematic errors
  • Basic Statistics Concepts
    • Populations and Samples
    • Data, means, modes and medians
    • Standard deviation and variance
    • Distributions
    • RSS (Root-sum-squares)
    • Confidence levels
    • Combination of uncertainties
    • Statistical math for uncertainty analysis
    • The analysis process
    • Type A computations
    • Type B computations
    • Combining uncertainties (Applying RSS)
    • Correlated and uncorrelated data
    • Sensitivity coefficients (multipliers for weighting)
    • Degrees of freedom
    • Expanded uncertainty
  • Understanding the Uncertainty Budget
    • Role in accreditation, liability, traceability
    • Accepted definitions of uncertainty, e.g., GUM (others?)
    • Analyzing and interpreting data
    • Uncertainty statements and notes
Note: This one-day course is typically delivered as the first day of our 2-day class, Measurement Uncertainty Budgets. If you wish to register for the 2-day course, you will not be charged for duplicate registrations.

Materials

The student is encouraged to bring a scientific calculator with trig functions, such as the TI30Xa, to class.

The student is encouraged to bring a calculator with trig functions to class. The instructor will use the TI30Xa, so that would be preferred. Keep in mind that ASQ exam administrators will not allow smart phones during the exam.