title: Compact pulse generators with soft ferromagnetic cores driven by gunpowder and explosive.
abstract: Compact pulse generators which utilized soft ferromagnets as an initial energy carrier inside multi-turn coil and hard ferromagnets to provide the initial magnetic field outside the coil have been studied. Two methods of reducing the magnetic flux in the generators have been studied: (1) by igniting gunpowder to launch the core out of the generator, and (2) by detonating explosives that demagnetize the core. Several types of compact generators were explored to verify the feasibility. The generators with an 80-turn coil that utilize gunpowder were capable of producing pulses with amplitude 78.6 V and the full width at half maximum was 0.41 ms. The generators with a 37-turn coil that utilize explosive were capable of producing pulses with amplitude 1.41 kV and the full width at half maximum was 11.68 μs. These two methods were both successful, but produce voltage waveforms with significantly different characteristics.
authors.affiliation: School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China.
authors.forename: Chi
authors.initials: C
authors.lastname: Ben
authors.affiliation: School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China.
authors.forename: Yong
authors.initials: Y
authors.lastname: He
authors.affiliation: School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China.
authors.forename: Xuchao
authors.initials: X
authors.lastname: Pan
authors.affiliation: School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China.
authors.forename: Hong
authors.initials: H
authors.lastname: Chen
authors.affiliation: School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: He