交流小电流校准装置研究

谭向宇,邵海明,李灵至,李妍,丁志文

计量学报 ›› 2024, Vol. 45 ›› Issue (1) : 82-88.

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PDF(785 KB)
计量学报 ›› 2024, Vol. 45 ›› Issue (1) : 82-88. DOI: 10.3969/j.issn.1000-1158.2024.01.12
电磁学计量

交流小电流校准装置研究

  • 谭向宇1,邵海明2,李灵至3,李妍2,丁志文2
作者信息 +

Research on AC Low Current Calibration Device

  • TAN Xiangyu1,SHAO Haiming2,LI Lingzhi3,LI Yan2,DING Zhiwen2
Author information +
文章历史 +

摘要

在交流电流测试领域,交流小电流的校准溯源一直是该领域的难点。归纳分析了目前研究和生产领域常用的测试方法,并分析了各自的优劣势,提出了一种基于交流电流比较仪的新方法,将交流小电流溯源到mA级较大交流电流,并设计了校准装置,将交流电流测量能力扩展到1μA(10Hz~10kHz),准确度达到0.05%。

Abstract

AC low current calibration is always a difficult problem in AC testing field. The common testing methods in research and production field were analyzed, and the advantages and disadvantages of each method were analyzed. A new method based on AC comparator was put forward, and the AC low current was then traced to mA level alternating current. The calibration device was also developed. By carrying out a series of contrast test, the proposed method extended the measuring capability of alternating current to 1μA (10Hz~10kHz) with the accuracy of 0.05%.

关键词

交流小电流;比较法;测量;校准装置 / 交流电流比较仪

Key words

AC low current;comparison method;measuring;calibrating device / AC comparator

引用本文

导出引用
谭向宇,邵海明,李灵至,李妍,丁志文. 交流小电流校准装置研究[J]. 计量学报. 2024, 45(1): 82-88 https://doi.org/10.3969/j.issn.1000-1158.2024.01.12
TAN Xiangyu,SHAO Haiming,LI Lingzhi,LI Yan,DING Zhiwen. Research on AC Low Current Calibration Device[J]. Acta Metrologica Sinica. 2024, 45(1): 82-88 https://doi.org/10.3969/j.issn.1000-1158.2024.01.12
中图分类号: TB971   

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基金

云南省科技揭榜制项目(202104BN050011);中国南方电网公司重点项目(YNKJXM20210075)

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