Experimental Test of Coupled Wave Model of Large Coils
Abstract
Recent data from Time Domain Pulse Reflectometry experiments on a three turn coil in the form of a race track corroborate the theory of coupled wave model for large coils. The data demonstrate effects of turn-to-turn coupling, pulse travel time, reduced damping at liquid Nitrogen temperature, and the relation between short-term and long-term transient behavior. The use of large superconductor coils as energy storage elements inherently poses the problem of dealing with fast electromagnetic transients in the vicinity of superconductor boundaries. Treatment of such coils as the lumped inductors of circuit theory is grossly inaccurate when events to be reckoned are on nanosecond scale. Rigorous treatment from the standpoint of electrodynamic field theory has resulted in the Coupled Wave Model which is based on the theory of multiple conductor transmission structures. The experimental data illustrate the merit of the model for analysis of transients on large coils and motivate further refinement and extension.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1985
- Accession Number
- ADA638536
Entities
People
- G. J. Gabriel
Organizations
- University of Notre Dame