202 / 2019-06-19 13:00:00

一种提高矩形脉冲电流幅度测量准确度的方法A Method for Improving the Measurement Accuracy of Rectangular Pulse Current Amplitude

计量学; 脉冲电流; 脉冲分流器; 不确定度,（metrology; Pulse Current; Pulse Current Shunt; Uncertainty）

全体主题 > Calibration, Metrology and Standards

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，提出了采用带有高速数采功能的数字多用表，配套脉冲分流器，组成脉冲电流测量装置的方法，该装置提高了脉冲电流幅度测量准确度和脉冲电流幅度测量值有效位数。介绍了Agilent3458A型数字多用表配套脉冲分流器的测量原理，手动测量方法和基于编程软件LabVIEW的自动测量方法，分析评定测量不确定度并与传统方法比较。通过实验证明，高速数采数字多用表配套脉冲分流器可操作性强，有效提高了脉冲电流幅度测量准确度和测量值的有效位数。
To Aiming at the problem of inaccurate measurement of pulse current amplitude by current probe matched with oscilloscope, To presented A method of using digital multimeter with high-speed data acquisition function and pulse shunt to form a pulse current measuring device. To improves the accuracy of pulse current amplitude measurement and the effective digits of pulse current amplitude measurement value. To expound The measuring principle of Agilent 3458A digital multimeter with pulse shunt, Manual Measurement Method and Automatic Test Method Based on Programming Software LabVIEW, Analysis and evaluation of measurement uncertainty and comparison with traditional methods. Proved by experiment, The device has a powerful operability, Improving the accuracy of pulse current amplitude measurement and the effective digit of measurement value effectively.