Evaluation of measurement uncertainty of a Digital AC Voltmeter using the Monte Carlo method

This paper presents a detailed evaluation of the measurement uncertainty of a digital AC voltage measuring device, using both analytical methods and the Monte Carlo simulation technique. A comprehensive mathematical model was developed, considering the contributions from key device components. The measurement uncertainty budgets were calculated across all operating ranges of the device, with special emphasis placed on identifying and analyzing dominant sources of error. Monte Carlo simulation proved effective for uncertainty estimation. Potential improvements through software-based compensation methods are also discussed.