A bench top railgun with distributed energy sources and diagonostics

Bryan T. McDaniel, John J. Mankowski, David Wetz, Brent McHale, Magne Kristiansen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The experimental results of a five stage distributed energy source railgun are presented. The advantages of such a scheme are increased efficiency due to less energy remaining in the railgun inductance and lower rail resistive losses. The design is a bench top 81 cm long solid armature railgun with a 1.27 cm × 1.27 cm bore cross-section separating the 1.27 cm × 2.54 cm copper rails. Multiple capacitive storage banks are connected at different positions along the length of the rails. Each bank is composed of electrolytic capacitors, toroidal inductors, SCRs, and free-wheeling diodes. The primary bank (stage 1) can store 11.6 kJ, and the other stages store 5.8 kJ of energy. The diagnostics include Rogowski coils at each bank, a flux ruler along the entire railgun to monitor the armature's velocity, and B-dots. The switches are controlled by pulsers with fiber optic inputs, which accurately trigger the SCRs. To sequence trigger the storage banks, B-dot sensors provide feedback to the armature's position. Additionally, experimental results are compared to PSPICE simulations.

Original languageEnglish
Title of host publication2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS
PublisherIEEE Computer Society
Pages185-190
Number of pages6
ISBN (Print)9781424420612
DOIs
StatePublished - Jan 1 2006
Event2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS - Santa Fe, NM, United States
Duration: Nov 5 2006Nov 10 2006

Publication series

Name2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS

Conference

Conference2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS
CountryUnited States
CitySanta Fe, NM
Period11/5/0611/10/06

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  • Cite this

    McDaniel, B. T., Mankowski, J. J., Wetz, D., McHale, B., & Kristiansen, M. (2006). A bench top railgun with distributed energy sources and diagonostics. In 2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS (pp. 185-190). [4530677] (2006 International Conference on Megagauss Magnetic Field Generation and Related Topics, including the International Workshop on High Energy Liners and High Energy Density Applications, MEGAGAUSS). IEEE Computer Society. https://doi.org/10.1109/MEGAGUSS.2006.4530677