Application of systems thinking to the establishment of metrological traceability chains

IF 0.1 Q4 INSTRUMENTS & INSTRUMENTATION
O. Velychko, T. Gordiyenko
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引用次数: 2

Abstract

International agreements in the field of metrology and accreditation of calibration laboratories are the basis for establishing global metrological traceability. Important elements of metrological traceability are calibration of measurement standards and measuring instruments, assessment of measurement uncertainty. The International Laboratory Accreditation Cooperation has a specific policy regarding on traceability of measurement results and estimation of measurement uncertainty in calibration. The partial concept diagram around metrological traceability in accordance with the International Vocabulary of Metrology is proposed. This diagram contains a total of nine metrological concepts, which have most of the associative relations. There are associative relations between the concept of metrological traceability chain and concepts of metrological traceability, measurement standard, calibration and calibration hierarchy, and through the concept of measurement standard with the concept of measurement uncertainty. Systems thinking to the analysis of state of proposed terminological system around metrological traceability was applied. For construction of generalized metrological traceability chain, all the established properties of the system elements around the terminology system of metrological traceability were taken into account. Generalized metrological traceability chain for different levels of the calibration hierarchy was proposed. The proposed chain can be used to develop appropriate chains for specific areas of measurement. To achieve this, it is necessary to determine the specific measured value, the required measurement uncertainty for different levels of the calibration hierarchy and select the necessary measurement standards. Such schemes should be used in national metrology institutes and calibration laboratories.
系统思维在计量溯源链建立中的应用
计量领域的国际协议和校准实验室的认证是建立全球计量可追溯性的基础。计量可追溯性的重要组成部分是测量标准和测量仪器的校准、测量不确定度的评定。国际实验室认可合作组织有一项关于测量结果可追溯性和校准中测量不确定度估计的具体政策。根据《国际计量词汇》提出了计量溯源的局部概念图。该图共包含九个计量概念,它们具有大多数的关联关系。计量溯源链的概念与计量溯源、测量标准、校准和校准层次等概念之间存在关联关系,并通过测量标准的概念与测量不确定度的概念之间存在联系。将系统思维应用于围绕计量溯源的拟议术语系统的状态分析。在广义计量溯源链的构建中,考虑了计量溯源术语体系中系统元素的所有既定性质。提出了适用于不同校准层次的广义计量溯源链。所提出的链可用于为特定的测量领域开发适当的链。为了实现这一点,有必要确定特定的测量值、不同校准等级所需的测量不确定度,并选择必要的测量标准。国家计量机构和校准实验室应使用此类方案。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Ukrainian Metrological Journal
Ukrainian Metrological Journal INSTRUMENTS & INSTRUMENTATION-
自引率
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发文量
21
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