A Nonsymmetrical Uncertainty Analysis Method

Abstract An uncertainty evaluation method was proposed to reasonably consider the measurement uncertainty for measured variables which have nonsymmetric uncertainty components. The present method considers the nonsymmetrical uncertainty as one of the important parts of the uncertainty evaluation of measurements, which has not been dealt with in detail in previous uncertainty evaluation method. The present method provides more reasonable way to evaluate measurement uncertainty than other existing methods. The method is applied to report the uncertainty of a dynamic pressure measurement system.