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| Analysis and Design of the Dynamic Measurement Device for the Hysteresis Loop Using the High-frequency Pulse Excitation |
| Zhang Qi |
| Water Resources and Energy Engineering College, Yangzhou University, Yangzhou, Jiangsu 225127 |
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Abstract In order to measure the hysteresis loop and the ferromagnetic characteristics of the ferromagnetic material under the high-frequency pulse excitation, a set of the dynamic measurement device for the hysteresis loop is designed. The magnetic induction and the magnetic field intensity of this device are calculated respectively by the measured discharge voltage and discharge current, which is based on the Faraday's law of electromagnetic induction and the Ampere's law. The dynamic response of the simple equivalent circuit of this device is analyzed, and the constraint of the energy-storage capacitor and the expression of the discharge current are given. Then the hysteresis loop of the amorphous iron core is measured and the ferromagnetic properties are calculated. Since the high-frequency pulse excitation current is adopted, not only can reflect the ferromagnetic properties at high frequencies dynamically, but also improve the accuracy of measurement.
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Published: 24 October 2017
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| Cite this article: |
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Zhang Qi. Analysis and Design of the Dynamic Measurement Device for the Hysteresis Loop Using the High-frequency Pulse Excitation[J]. Electrical Engineering, 2017, 18(10): 69-73.
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http://dqjs.cesmedia.cn/EN/Y2017/V18/I10/69
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2017, Vol. 18 
