Measurement uncertainty is easily calculated using the Evaluator software tool.
The Evaluator can calculate uncertainties using several approaches. It can use an extended GUM approach (with correlations) or a Monte-Carlo simulation of the GUM approximation. In addition, the Evaluator facilitates calculating uncertainties directly from the measuring equation, saving the need to calculate derivatives (the c-sensitivities).
Alternatively, the c-sensitivities can be calculated from the measurement equation and then automatically used in a GUM calculation.
Using the Monte-Carlo simulations results in more precise calculations, sometimes showing differences of more than 30% compared to the GUM results.
All methods can use complex number uncertainties.
These features make the Evaluator the most comprehensive commercial program for uncertainty estimations.
As a unique tool for metrology, the Evaluator is equipped with additional power. It can do statistics, fit data, plot graphs, solve equations, run script files, do freehand calculations on a text editor, and much more.