DocumentCode
1244580
Title
Characteristics of high efficiency 300 kJ railgun
Author
Yamori, A. ; Kawashima, Naohiro ; Kohno, M.
Author_Institution
Inst. of Space & Astronaut. Sci., Kanagawa, Japan
Volume
31
Issue
1
fYear
1995
Firstpage
377
Lastpage
381
Abstract
The characteristics of a 300 kJ railgun is described. It has very efficient energy conversion characteristics and for this kind of high velocity railgun (7.8 km/s), a maximum of nearly 12% efficiency has been attained. The dependence of the efficiency on the stored energy of the power supply, projectile mass and the gun caliber is studied. The efficiency strongly depends on the caliber and increases as the caliber is increased. Measurements using an array of B-dot probes indicate that a growth of the secondary arc has a vital role in reducing the efficiency.<>
Keywords
arcs (electric); capacitor storage; power capacitors; power supplies to apparatus; probes; pulsed power technology; railguns; 12 percent; 300 kJ; 7.8 km/s; B-dot probes; energy conversion characteristics; gun caliber; measurements; power supply; projectile mass; railgun; secondary arc; stored energy; Boring; Capacitors; Energy conversion; Probes; Projectiles; Railguns; Rails; Space technology; Switches; Systolic arrays;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.364658
Filename
364658
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