Open AccessIntegrated shell approach to vertical position control on PBX-M
Author(s) -
R. Hatcher,
M. Okabayashi
Publication year - 1995
Language(s) - English
Resource type - Reports
DOI - 10.2172/32583
Subject(s) - shell (structure) , position (finance) , electromagnetic coil , magnetic field , eddy current , flux (metallurgy) , horizontal position representation , physics , mechanics , materials science , engineering , electrical engineering , mechanical engineering , finance , quantum mechanics , economics , metallurgy
The PBX-M device produces highly shaped discharges that, because of the negative external magnetic field decay index required, are vertically unstable. Vertical positional stability in PBX-M has been achieved by directly controlling the n = 0 component of the eddy current in the passive shell instead of the commonly used function of magnetic flux signals. Because the active coil is controlled via currents in the passive shell we call this an ``integrated shell`` approach to vertical position control. We present results of these experiments and make comparisons between the two methods of control