Methodological errors due to a non-cylindrical surface in a Jones-type cell with a removable center extension tube

Q3 Engineering

Acta IMEKO Pub Date : 2023-12-06 DOI:10.21014/actaimeko.v12i4.1604

Oleksii Stennik, Oleksandr Mikhal, D. Meleshchuk

引用次数: 0

Abstract

The article shows an idealized model of a Jones-type cell with a removable central extension tube. Two main factors leading to the cylindricity distortion of the inner surface of the cell are considered. These are radial displacement and tube diameter inequality. Based on the finite element method (FEM), errors in measuring the resistance of a liquid column caused by the non-uniformity of the current density distribution inside the cell were determined. The methodological error with respect to the idealized model was estimated for each factor separately and in combination. The Authors show that at a radial displacement of 0.6 mm, the error can reach 0.1 %. The same error value occurs when the inequality of the diameters is only 20 μm.

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带可拆卸中心延长管的琼斯型电池中的非圆柱表面导致的方法误差

文章展示了一个带有可拆卸中央延伸管的琼斯型电池的理想化模型。文章考虑了导致电池内表面圆柱变形的两个主要因素。这两个因素是径向位移和管径不等。基于有限元法（FEM），确定了由于池内电流密度分布不均匀而导致的液柱电阻测量误差。对每个因素单独和组合的理想化模型的方法误差进行了估算。结果表明，当径向位移为 0.6 毫米时，误差可达 0.1%。当直径不等仅为 20 μm 时，也会出现相同的误差值。

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

Acta IMEKO Engineering-Mechanical Engineering

CiteScore

2.50

自引率

0.00%

发文量

期刊介绍： The main goal of this journal is the enhancement of academic activities of IMEKO and a wider dissemination of scientific output from IMEKO TC events. High-quality papers presented at IMEKO conferences, workshops or congresses are seleted by the event organizers and the authors are invited to publish an enhanced version of their paper in this journal. The journal also publishes scientific articles on measurement and instrumentation not related to an IMEKO event.