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| A Method for Improving the Measurement Accuracy of Rectangular Pulse Current Amplitude |
| SUN Zhi, GAO Hai-feng, LI Jing-jing |
| Beijing Orient Institute of Measurement & Test, Beijing 100086, China |
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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.
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Received: 17 September 2019
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2019, Vol. 40 
