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Expanded Uncertainty of a Measurement and an Uncertainty Budget for a Single Measurement
2014This chapter takes the standard uncertainty calculated in the previous chapter and shows how to apply a statistical confidence in order to determine the expanded uncertainty, which is commonly referred to as “the uncertainty of a measurement.” The chapter demonstrates how uncertainties quoted at one level of confidence (e.g., on a calibration ...
Colin Ratcliffe, Bridget Ratcliffe
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Expandability, reversibility and harvesting under uncertainty
Fisheries Research, 1999Abstract Uncertain stock evolution can render harvest output adjustment costly. However, the fleet can anticipate future stock disturbance and alter its current harvest output to avoid costly future adjustment. It can lower its current output and create flexibility to expand future harvest, making current harvest behaviour more conservative; whilst ...
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Expanded uncertainty regions for complex quantities
Metrologia, 2013The expanded measurement uncertainty of a complex quantity is a region in the complex plane surrounding the measured value. This paper considers different shaped uncertainty regions in the form of ellipses, circles, rectangles and parallelograms. The different types of region are compared, under a variety of measurement error conditions, with regard to
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The Expanded Uncertainty for Radio Frequency Immunity Testing
PIERS Online, 2010This paper is concerned with the problems of electromagnetic compatibility for RF (Radio Frequency) immunity testing according to the EN 61000-4-3 standard. The measurement uncertainty budget calculation techniques recommended in standardizing documents are barely described and very often they are not adapted to the specific needs of tests performed ...
RafaÅ Przesmycki +3 more
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Evaluating expanded uncertainty in measurement with a fitted distribution
Metrologia, 2008It is recommended in the internationally adopted standard GUM that the measurement result of a measurand Y, determined from input quantities through a known functional relationship, should be reported as an uncertainty interval with a specific level of confidence.
C H Sim, M H Lim
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Improved estimates of expanded measurement uncertainty
Analytical MethodsAn improved estimate of expanded measurement uncertainty, when this is calculated using ANOVA results from a nested experimental design, is described. In cases where the number of sampling targets is ≪30, more accurate coverage factors are calculated.
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Control of the tandem hot strip mill under expanded uncertainties and disturbances
2013 IEEE Industry Applications Society Annual Meeting, 2013Previously, it has been shown that a controller based on the use of the state-dependent-Riccati-equation technique has resulted in significant improvements in performance. In our previous work, controller performance under certain disturbances and uncertainties that are considered typical for tandem hot rolling was addressed.
John Pittner, Marwan A. Simaan
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Expanding needs for metrological traceability and measurement uncertainty
Measurement, 2013Abstract In our daily life, numerical evaluation of a quantity is normally required not only for scientific decision but also for judgment of products. Under the Metre Convention, ideal system of the International System of units (SI) is globally recognized and utilized in many fields of science and technology [1] . Some documented standards such as
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Type a Expanded Uncertainty Assigned to the Measurand
2023 IEEE East-West Design & Test Symposium (EWDTS), 2023Igor Zakharov +2 more
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Should ports expand their facilities under congestion and uncertainty?
Transportation Research Part B: Methodological, 2016This paper investigates simultaneous facility investments of risk-averse ports under congestion and uncertain market demand. We set up a two-period game, allowing two ports first choose their facility investment levels, and then decide their cargo-handling amounts and service prices.
Hsiao-Chi Chen, Shi-Miin Liu
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