Test bed for the evaluation of solid armature concepts
conference paper
An experimental set-up has been developed for realistic testing of new types of diagnostics and for the detailed, quasi-static study of some critical aspects of solid armatures. Special attention is paid to measurements that are normally difficult to perform under launch conditions.
Special diagnostics, such as miniature B-dot probes, voltage sensors and Rogowski coils are developed and used for electric and magnetic field measurements near solid armatures to determine the magnetic field diffusion into the armature. The experimental method has been checked with a number of proof-of-principle experiments.
The quantities characterising the diffusion process have been measured in monobloc and multi-fibre solid brush armatures with identical geometry. The quasi-static results show a significant difference in diffusion behaviour between the two types of armatures. It appears that the magnetic field diffuses faster into the fibre armature.
The experimental data are compared with results of calculations of the magnetic field distribution in both armatures based on 2D finite element computer simulations.
The measurements appear to confirm the results of the computer simulations and theoretical models of monobloc and fibre armatures.
Experimental results of launch experiments with multi-fibre solid brush armatures provided with a new confinement structure are described in this paper, too.
Special diagnostics, such as miniature B-dot probes, voltage sensors and Rogowski coils are developed and used for electric and magnetic field measurements near solid armatures to determine the magnetic field diffusion into the armature. The experimental method has been checked with a number of proof-of-principle experiments.
The quantities characterising the diffusion process have been measured in monobloc and multi-fibre solid brush armatures with identical geometry. The quasi-static results show a significant difference in diffusion behaviour between the two types of armatures. It appears that the magnetic field diffuses faster into the fibre armature.
The experimental data are compared with results of calculations of the magnetic field distribution in both armatures based on 2D finite element computer simulations.
The measurements appear to confirm the results of the computer simulations and theoretical models of monobloc and fibre armatures.
Experimental results of launch experiments with multi-fibre solid brush armatures provided with a new confinement structure are described in this paper, too.
Topics
TNO Identifier
124026
Article nr.
2
Source title
5th European Symposium on EML Technology, Toulouse, France, 10-13 April 1995
Collation
10 p.
Files
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