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| Discharge Current Measurement of Pulsed High Magnetic Field Facility Based on PCB Air-Core Coil and Digital Integrator |
| Han Xiaotao1, 2, Huang Lantao1, 2, Sun Wenwen1, 2, Ding Pengcheng1, 2, Xie Jianfeng1, 2, Shi Jiangtao1, 2 |
| 1. Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology Wuhan 430074 China 2. State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan 430074 China |
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Abstract In order to monitor discharging process of the pulsed high magnetic facility, the discharge current must be measured accurately. In this paper, the two stages of discharge and the characteristics of the discharge current are analyzed in details by simulation. According to the characteristics of the discharge current and the fundamental principle of air-core coil, a measurement scenario of combination printed circuit board (PCB) air-core coil and digital integrator based on improved Al-Alaoui algorithm is put forward. A calibration system using Pearson 4427 current transformer is designed and tested. These tests verify the accuracy and the stability of the scenario can meet the measurement requirement of pulsed high current.
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Received: 03 November 2011
Published: 20 March 2014
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2012, Vol. 27 
