A TRANSFORMER WITH A ONE TURN SUPERCONDUCTING SECONDARY

摘要

This thesis is a study of the effect of electromagnetically inducing current in multiply connected superconductors. In the experimental work a superconducting lead toroid is used, and an extensive mathematical analysis of both the electromagnetic coupling and the switchingntransients of this configuration is performed. A comparison of thenexperimental results with the mathematical analysis indicates a major effect that was not predicted. This effect involves the distinction between the Meissner current and the joule, current in multiply connected super conductors and indicates important. considerations in the design of electromagnetically coupled superconducting circuits. This effect also indicates a way to study the Meissner current, a phenomenon which is not very well understood at the present time.