Analysis of target uncertainty assessment methods
DOI:
https://doi.org/10.31498/2225-6733.48.2024.310688Keywords:
measured quantity, interval of values, maximum permissible error, estimation of uncertainty, target uncertaintyAbstract
For almost 25 years, mankind has been dealing with the problems of estimating measurement uncertainty. When applying uncertainty, the goal is not to determine the true value during the measurement as far as possible. That is, it is recognized that the information obtained during the measurement allows only to assign a reasonable interval of values for the measured value, based on the assumption that no errors were made during the measurement. However, even the most accurate measurements cannot reduce this interval to a single value due to the finite number of details in the description of the measured value. An interval can be represented by a single value of its own, called the «measured value of the quantity». Over the years, many scientific works have been devoted to methods of estimating the uncertainty of measurements. At the same time, the main conclusion is that the value of uncertainty depends on the applied method of its assessment. In practice, the use of uncertainty has not been widely used. Accredited calibration and testing laboratories must be able to estimate measurement uncertainty. Therefore, they learn uncertainty assessment methods, develop examples. It is written in the management system that the evaluation of the uncertainty of the measurement result is provided at the request of the customer. But neither the customer nor the executor understands the purpose of its application. Therefore, now is the time for scientists, together with practitioners, to deal with the issue of establishing target uncertainty for solving specific measurement tasks, such as establishing compliance of products with specified requirements, establishing the suitability of measuring equipment after calibration, etc. Thus, for practical application, it is important to be able to determine the value of the target uncertainty - the value of uncertainty for the measured value of the quantity at which the measured value can be considered reliable for a specific practical application
References
Про метрологію та метрологічну діяльність : Закон України від 05.06.2014 р. № 1314-VII. Відомості Верховної Ради України. 2014. № 30. Ст. 1008.
Захаров І. П. Порівняльний аналіз характеристики точності вимірювань: монографія. Харків : Оберіг, 2019. 100 с.
Трембовецька Р. В., Гальченко В. Я., Тичков В. В. Встановлення та оцінка невизначеності результату вимірювання лінійного розміру безконтактним методом. Вісник Черкаського державного технологічного університету. Серія: Технічні науки. 2017. № 1. С. 25-32. URL: http://nbuv.gov.ua/UJRN/Vchdtu_2017_1_5.
Zakharov I., Neyezhmakov P., Botsiura O. Verification of the indicating measuring instruments taking into account their instrumental measurement uncertainty. Measurement Science Review. 2017. Vol. 17. Iss. 6. Pp. 269-272. DOI: https://doi.org/10.1515/msr-2017-0033.
Features of measurement uncertainty evaluation during calibration of digital ohmmeters / Zakharov I., Semenikhin V., Zakharov O., Shevchenko S. Український метрологічний журнал. 2023. № 2. С. 22-27. DOI: https://doi.org/10.24027/2306-7039.2.2023.286713.
Zakharov I., Neyezhmakov P., Botsiura O. Reduction of the bias of measurement uncertainty estimates with significant non-linearity of a model equation. Journal of Physics: Conference Series. 2019. Vol. 1379. Pp. 1-5. DOI: https://doi.org/10.1088/1742-6596/1379/1/012013.
Zakharov I., Botsiura O. Calculation of expanded uncertainty in measurements using the Kurtosis method when implementing a Bayesian approach. Measurement Techniques. 2019. Vol. 62(4). Pp. 327-331. DOI: https://doi.org/10.1007/s11018-019-01625-x.
ISO/IEC Guide 99:2007. International vocabulary of metrology – Basic and general concepts and associated terms (VIM). International Organization for Standardization, 2007. 92 p.
Eurachem/CITAC Guide: Setting and using target uncertainty in chemical measurement / ed. by R. Bettencourt da Silva, A. Williams. 1-st ed. 2015. 24 p.
ДСТУ ISO 5725-1-2005. Точність (правильність та прицезійність) методів та результатів вимірювань. Частина 1. Основні положення та визначення. [Чинний від 2006-07-01]. Вид. офіц. Київ : Держспоживстандарт України, 2006. 21 с.
ISO 21748:2010. Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty estimation. International Organization for Standardization, 2010. 38 p.
Downloads
Published
How to Cite
Issue
Section
License
The journal «Reporter of the Priazovskyi State Technical University. Section: Technical sciences» is published under the CC BY license (Attribution License).
This license allows for the distribution, editing, modification, and use of the work as a basis for derivative works, even for commercial purposes, provided that proper attribution is given. It is the most flexible of all available licenses and is recommended for maximum dissemination and use of non-restricted materials.
Authors who publish in this journal agree to the following terms:
1. Authors retain the copyright of their work and grant the journal the right of first publication under the terms of the Creative Commons Attribution License (CC BY). This license allows others to freely distribute the published work, provided that proper attribution is given to the original authors and the first publication of the work in this journal is acknowledged.
2. Authors are allowed to enter into separate, additional agreements for non-exclusive distribution of the work in the same form as published in this journal (e.g., depositing it in an institutional repository or including it in a monograph), provided that a reference to the first publication in this journal is maintained.
