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In metrology, measurement uncertainty is the expression of the statistical dispersion of the values attributed to a quantity measured on an interval or ratio scale.
29 wrz 2010 · Measurement uncertainty is a parameter that characterizes the dispersion of the values that could reasonably be attributed to a measurand, based on the information used. Learn how to evaluate and express measurement uncertainty using the GUM, the VIM, and the Uncertainty Machine.
Measurement uncertainty is a parameter used in data processing for the description of both the dispersion of the result and its estimated difference from the accurate value. Frequently, this is simplified to only dispersion, and measurement uncertainty is obtained using statistical data variance.
Revised version of ISO 19036 offers a pragmatic approach to MU in quantitative food chain microbiology choice left between. Comprehensive approach with 3 components: technical, matrix and distributional uncertainties. Simplified approach: MU restricted to technical uncertainty.
2.1 What is uncertainty of measurement? The uncertainty of a measurement tells us something about its quality. Uncertainty of measurement is the doubt that exists about the result of any measurement.
Define accuracy and precision. Distinguish exact and uncertain numbers. Correctly represent uncertainty in quantities using significant figures. Apply proper rounding rules to computed quantities.
5 kwi 2001 · The definition of uncertainty in measurement according to ISO is: ‘parameter, associated with a result of a measurement that characterises the dispersion of the values that could be reasonably attributed to the measurand’.
