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Analytical Model for Explosive-Driven Ultracompact Shock-Wave Ferromagnetic Generators

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Talantsev E., Shkuratov S., Baird J., Altgilbers L.
Acta Physica Polonica A
|
2009
|
vol. 115
|
issue 6
1028-1030
EN
An analytical model of the operation of recently invented ultracompact explosive-driven shock-wave ferromagnetic generators that utilize longitudinal (shock wave propagates along the magnetization vector) and transverse (shock wave propagates across the magnetization vector) shock wave demagnetization of Nd_{2}Fe_{14}B hard ferromagnets, and an analytical technique for calculation of amplitudes of the current pulse produced by the generators were developed. The model utilizes the magnitude of the energy product, (BH)_{max}, and the magnetostatic energy of the hard ferromagnetic element of the ferromagnetic generator as parameters for determining ferromagnetic generator pulse generation, and it does not consider the magnitude of remnant magnetization, B_{r}, of the ferromagnetic material. The developed technique for calculation of the current pulse amplitude produced by the ferromagnetic generator provides comprehensive and accurate results. Amplitudes of calculated ferromagnetic generator output currents are in good agreement with experimentally obtained data.
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