高精度电阻测量的长期漂移评价

Q4 Engineering

Measurement Sensors Pub Date : 2025-05-01 DOI:10.1016/j.measen.2024.101430

Oleh Velychko, Vasyl Dovhan, Denys Nikitenko, Jaroslav Brezytskyi

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引用次数: 0

摘要

测量长时间漂移对校准的影响强调了仔细监测其计量特性的重要性。如果不考虑或纠正漂移，则可能导致其他测量仪器无法正确校准。给出了4种标称值为1 MΩ、10 MΩ、100 MΩ和1000 MΩ的高电阻精度测量的长期漂移评价结果。测量数据有1992年至2023年的历史校准数据。对于所有高阻测量，对漂移线的描述已经足够充分。用6ppm至9ppm的值对高阻测量校准的测量不确定度进行了评估。

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Evaluation of the long-term drift of high precision resistance measures

The influence of long-time drift of measure on calibration emphasizes the importance of careful monitoring of their metrological characteristics. If drift is not accounted for or corrected, it can lead to failure to calibrate other measuring instruments correctly. The results of evaluation of long-term drift of four high-resistance precision measures with nominal values of 1 MΩ, 10 MΩ, 100 MΩ and 1000 MΩ using polynomial regression of 1-3 orders are presented. Measures have historical calibration data from 1992 to 2023. Sufficient adequacy has been achieved in the description of drift lines for all high-resistance measures. The measurement uncertainties of calibration of a high-resistance measure are evaluated with values from 6 ppm to 9 ppm.

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