Introduction to Uncertainty Measurement

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Uncertainty Measurement

You may be interested in the uncertainty of measurement simply because you wish to make good quality measurements and to understand the results.

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Uncertainty Measurement

Uncertainty of measurement is the doubt that exists about the result of any measurement. You might think that well-made rulers, clocks and thermometers should be trustworthy, and give the right answers. But for every measurement – even the most careful – there is always a margin of doubt.

Learn the uncommon skill of Engineering: Uncertainty Measurement.

You may be interested in the uncertainty of measurement simply because you wish to make good quality measurements and to understand the results.

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Lessons

Standard deviation

Author: GaugeHow Team

Example of Standard Deviation: Suppose you have a set of n readings Start by finding the average:Consider the set of readings 16, 19, 18, 16, 17, 19, 20, 15, 17…

Coverage factor

Author: GaugeHow Team

Usually, standard uncertainty referred by 68% and Expected uncertainty is 95% if we assume a normal distribution. We can create our desire coverage interval as below. case-1 For coverage interval…

How to calculate uncertainty?

Author: GaugeHow Team

To calculate the uncertainty of a measurement, firstly you must identify the sources of uncertainty in the measurement. Then you must estimate the size of the uncertainty from each source.…

Standard and Expanded uncertainty

Author: GaugeHow Team

Standard uncertainty All contributing uncertainties should be expressed at the same confidence level, by converting them into standard uncertainties. A standard uncertainty is a margin whose size can be thought…