一种提高矩形脉冲电流幅度测量准确度的方法

doi:10.3969/j.issn.1000-1158.2019.6A.017

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摘要针对传统示波器配套电流探头测量脉冲电流幅度不准的问题,利用Agilent 3458A型数字多用表高速数采功能和NPLC函数,对测得的脉冲幅度进行积分等数据处理,提出了一种提高矩形脉冲电流幅度准确度和有效位数的方法,即将数字多用表3458A和脉冲分流器组成脉冲电流测量装置。实验结果表明:提出的方法测量不确定度优于0.22%,有效位数大于5位数,方法简便,结果准确、可靠。同时介绍了基于编程软件LabVIEW的脉冲电流幅度自动测量方案。

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	孙智
	高海峰
	李晶晶

关键词 ：计量学, 脉冲电流, 脉冲分流器, 准确度

Abstract：To Aiming at the problem of inaccurate measurement of pulse current amplitude by current probe matched with oscilloscope. Using the high-speed data acquisition function and NPLC function of Agilent 3458A digital multimeter. To data processing such as integrating the measured pulse amplitude. To presented A method of to improve the amplitude accuracy and effective digit of rectangular pulse current. To compose the pulse current measuring device of 3458A digital multimeter with pulse shunt. The experimental results show that the measurement uncertainty is better than 0.22%, the effective digits is better than 5 digits, the method is simple, the results are accurate and reliable. At the same time, to expound the automatic measurement project of pulse current amplitude based on programming software LabVIEW.

Key words： metrology pulse current pulse current shunt accuracy

收稿日期: 2019-09-17

PACS:

TB971

作者简介: 孙智（1977-）,男,山东菏泽人,北京东方计量测试研究所高级工程师,主要从事高压大电流计量检测和科研工作。Email: sunzhicn@163.com

引用本文:

孙智, 高海峰, 李晶晶. 一种提高矩形脉冲电流幅度测量准确度的方法[J]. 计量学报, 2019, 40(6A): 79-83.
SUN Zhi, GAO Hai-feng, LI Jing-jing. A Method for Improving the Measurement Accuracy of Rectangular Pulse Current Amplitude. Acta Metrologica Sinica, 2019, 40(6A): 79-83.

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