A new application of the effect of transverse-shock-wave demagnetization of Nd2Fe14B high-energy hard ferromagnets for powering an explosive-driven helical flux compression generator (FCG) is proposed. The novel FCG seeding system based on a compact transverse shock-wave ferromagnetic generator (FMG) containing a 200-cm3 Nd2Fe14B energy-carrying element and a 12 g high explosive charge was designed, constructed, and tested. The proposed design is based on the idea that the wide coaxial single-turn pulse-generating coil of the FMG can simultaneously serve as a seed coil for the FCG. The coaxial single-turn pulse-generating coil of the FMG was wound on the initial part of the FCG helix; therefore, only transformer coupling existed between the pulse-generating system of the FMG and the helix of the FCG. This seeding system provides up to 180 A current amplitude and 55 mus current pulse duration to a helical FCG.
S. I. Shkuratov et al., "Transformer-Type Seeding System of a Helical FCG Based on a Transverse Shock Wave Ferromagnetic Generator," International Conference on Megagauss Magnetic Field Generation and Related Topics, Institute of Electrical and Electronics Engineers (IEEE), Nov 2006.
The definitive version is available at http://dx.doi.org/10.1109/MEGAGUSS.2006.4530694
Mining and Nuclear Engineering
Keywords and Phrases
Ferromagnetic Materials; Pulse Generators; Shock Waves; Transformers
Article - Conference proceedings
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