Development of an induction type railgun

Author

Yamori, Akira ; Ono, Yukari ; Kubo, Haruya ; Kono, Migiwa ; Kawashima, Nobuki

Author_Institution

Inst. of Space & Astron. Sci., Kanagawa, Japan

Volume

37

Issue

1

fYear

2001

fDate

1/1/2001 12:00:00 AM

Firstpage

470

Lastpage

472

Abstract

The remarkable feature of the induction type railgun is to enhance a plasma armature by transferring some part of a secondary arc current with an induction effect during the process of accelerating a projectile. Since the last conference we have built a new experimental system including an improved induction type railgun and a capacitor bank of a higher stored energy. This paper describes the experimental results obtained by the new experimental system. We performed the experiments both in a conventional railgun mode and an induction type railgun mode to compare their results. Not only an increase of the projectile velocity but also a reduction of the elongation of the plasma armature was observed in the induction type railgun mode. The projectile velocity increased from 2.4 km/s to 2.7 km/s, and the length of the plasma armature decreased from 26 cm to 20 cm

Keywords

arcs (electric); electromagnetic induction; projectiles; railguns; 13 mm; 2.7 km/s; 20 cm; 200 cm; HYPAC railgun; capacitor bank; induction type railgun; plasma armature elongation reduction; plasma armature enhancement; projectile acceleration; projectile velocity increase; secondary arc current transfer; Acceleration; Capacitors; Circuits; Cities and towns; Plasma accelerators; Projectiles; Railguns; Rails; Space technology;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.911879

Filename

911879