Experimental observations of the coupling between induced currents and mechanical motion in torsionally supported square loops and plates

Journal Article · Sat Nov 01 04:00:00 EST 1986 · Fusion Technol.; (United States)

OSTI ID:6986218

Bialek, J M; Cargulia, G J; Ulrickson, M; Knott, M J; Turner, L R; Wehrle, R B

A series of experiments that were successfully conducted to investigate the coupling between induced currents and rigid body rotation in square loops and plates is presented. The experimental arrangement consisted of a conducting test piece, rigidly mounted in a nonconducting fixture that provided a controlled stiffness against rotation. Electric current were induced in the test loop/plate by pulsing a magnetic field oriented perpendicular to the test piece. This was done in the presence of a constant magnetic field oriented parallel to the loop/plate. The interaction of the induced currents and the background magnetic field produced a net torque about the axis of the test fixture. Measurements were made of the total current flowing around the test piece and the angular rotation versus time. The observed data exhibited the magnetic damping and magnetic stiffness effects that arise in coupled systems and agreed very well with the predicted responses for both the loops and plates.

• Research Organization: Plasma Physics Lab., Princeton Univ., P.O. Box 451, Princeton, NJ
• OSTI ID: 6986218
• Journal Information: Fusion Technol.; (United States), Journal Name: Fusion Technol.; (United States) Vol. 10:3; ISSN FUSTE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700202* -- Fusion Power Plant Technology-- Magnet Coils & Fields
ANL
COUPLING
CURRENTS
DAMPING
EDDY CURRENTS
ELECTRIC CURRENTS
FELIX FACILITY
INCIDENCE ANGLE
MAGNETIC FIELDS
MAGNETIC RIGIDITY
MOTION
NATIONAL ORGANIZATIONS
PLATES
PULSE TECHNIQUES
RESEARCH PROGRAMS
ROTATION
TEST FACILITIES
TORQUE
TORSION
US AEC
US DOE
US ERDA
US ORGANIZATIONS