We reapproach the characterization of the inductance gradient and the current distribution in electromagnetic rail launchers with multiple brush armatures. A measurement procedure based on the use of a loop system mutually coupled with the launcher is illustrated for the case of a two-brush armature. We show how to estimate the current distribution between the brushes following the basic rules of the partial-inductancemethod. To test the proposed procedure, we performed an experimental analysis on a rail launcher prototype supplied by a high-voltage high-power capacitor bank. Experimental results were obtained under the static condition of the armature, and they are in agreement with theoretical calculations.
|Autori interni:||MARRACCI, MIRKO|
|Autori:||FERRERO R; MARRACCI M; TELLINI B|
|Titolo:||Characterization of Inductance Gradient and Current Distribution in Electromagnetic Launchers|
|Anno del prodotto:||2011|
|Digital Object Identifier (DOI):||10.1109/TIM.2010.2091186|
|Appare nelle tipologie:||1.1 Articolo in rivista|