| 摘要 |
1,187,149. Superconductor devices. COMMISSARIAT A L'ENERGIE ATOMIQUE. 1 June, 1967 [20 July, 1966], No. 25262f67. Heading H1K. A moving magnetic field is provided in the vicinity of a thin foil closed-loop superconductor circuit to enable magnetic flux to become accumulated in the loop, and a second circuit is associated with the superconductor circuit so that the energy accumulated in the superconductor circuit may, when required, be released into the second circuit. In the form shown, the superconductor circuit comprises a cylindrical sheet 11 covered with insulating material 30. A series of coils 1-6 are supplied from a multi-phase supply using a circuit producing a magnetic field which progresses in overlapping pulses parallel to the axis of the sheet 11, inducing moving localized zones of normal conduction in the sheet 11 and thereby permitting flux lines to be introduced into the central space enclosed by the sheet 11. Localized heating synchronized with the movement of the field provided by the coils 1-6 may also be employed to produce the moving zone of normal conduction. In order to release the energy from the sheet 11 current is passed through a conducting strip 31 toroidally wound around the sheet 11, and the Joule heating produced in the strip 31 causes the entire sheet 11 to become normally conducting, thereby releasing its accumulated energy to the energyreceiving circuit which comprises a helical strip 36. The sheet 11 and strips 31 and 36 may all be enclosed within a cylindrical insulating mass 37. The strip 36 may alternatively be mounted outside the superconducting cylinder 11, and may form a separate assembly. The superconducting circuit may comprise a series of mutually insulated coaxial cylindrical sheets such as 11, or may have a toroidal form in which case the coils providing the moving magnetic field may be mounted in or perpendicularly to the plane of symmetry of the torus. Anisotropic superconducting sheets providing a preferential direction of current flow may also be used. |
