Evaluator (rev. 2.22)

Measurement uncertainty is easily calculated using this software which 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, 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.

This is a time limited^*, trial version of the program in which some features are disabled (including file save) until the software is registered. The author has extensive metrology experience, having formerly been responsible for frequency and voltage standards at Israel's National Physical Laboratory.

^* Following installation, the program will run for 30 days before a code must be purchased to continue use.

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