在测试稳态精密电流分流器时研究直流特性

IF 1 4区 工程技术 Q4 INSTRUMENTS & INSTRUMENTATION
MAPAN Pub Date : 2023-11-01 DOI:10.1007/s12647-023-00697-z
Valentyn Isaiev, Svitlana Isaieva
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引用次数: 0

摘要

本文介绍了精密电流分流器在输出电压稳定性方面的性能研究。此外,本文还简要介绍了影响这些测量仪器稳定状态的现象。作者提出了一种测试电流分流器的方法,以确保高质量的电流测量结果。调查强调了分流器的三个特性(电阻对温度的依赖性、输出电压对电流快速增加的响应以及从冷态到热态的过渡)。在实验检查过程中考虑了带有精密分流器的测试设备。调查结果表明,该设备的运行性能令人满意,符合实验室的需要。此外,作者还强调在校准其他仪器(如高精度数字电流表)时使用精密分流器作为测量标准。从这个角度出发,作者对交流-直流传输差的变化进行了简化数学建模,这种变化取决于升温电流引起的电阻变化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Investigating DC Characteristics in Testing Precision Current Shunts for Steady State

Investigating DC Characteristics in Testing Precision Current Shunts for Steady State

Investigating DC Characteristics in Testing Precision Current Shunts for Steady State

This paper provides information on the performance study of precision current shunts in the context of their output voltage stability. Besides, it briefly focuses on the phenomena affecting the steady state of these measuring instruments. The authors present a methodology for testing current shunts to ensure a high-quality result of current measurement. The investigation highlights three characteristics of shunts (the dependence of resistance on temperature, the response of the output voltage to a fast increase of current, and the transition from a cold state to a warm one). The test equipment with precision shunts were considered during the experimental examination. The results of an investigation confirmed satisfactory operational properties and compliance with the needs of laboratories. Additionally, the authors emphasize using a precision shunt as a measuring standard when calibrating other instruments like high-precision digital ammeters. From this point of view, the simplified mathematical modeling of the change in the AC-DC transfer difference, depending on the resistance change caused by the warming current, was carried out.

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来源期刊
MAPAN
MAPAN 工程技术-物理:应用
CiteScore
2.30
自引率
20.00%
发文量
91
审稿时长
3 months
期刊介绍: MAPAN-Journal Metrology Society of India is a quarterly publication. It is exclusively devoted to Metrology (Scientific, Industrial or Legal). It has been fulfilling an important need of Metrologists and particularly of quality practitioners by publishing exclusive articles on scientific, industrial and legal metrology. The journal publishes research communication or technical articles of current interest in measurement science; original work, tutorial or survey papers in any metrology related area; reviews and analytical studies in metrology; case studies on reliability, uncertainty in measurements; and reports and results of intercomparison and proficiency testing.
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