摘要:
The invention relates to a coil for producing a magnetic field having at least one winding (12), which is manufactured from a superconductor, is cast into a plastic and whose winding end (19) which is arranged at the circumference (13) of the winding (12) is used for making contact with an electrical conductor (15). In order to provide coils with windings (12) consisting of superconductors which make robust contact-making possible given simple production, an electrically conductive connection piece (30) with a base region (31), which is connected areally to the winding end (19), and a top region (32) for connecting the conductor (15) is provided for contact-making purposes, the base region (31) of said connection piece (30) being covered partially in the radial direction by a reinforcing insert (14), which is cast into the plastic (20) and at least partially surrounds the winding (12).
摘要:
A superconducting magnet, applied for a train side permanent magnet for a magnetically levitated train as one embodiment of the invention, comprises a coil structure (14) including a superconducting wire (16) wound into a form of a race track and impregnated with epoxy resin (18), an annular vessel member (24) accommodating the coil structure (14), and a spacing member (20) rigidly mounted in the vessel member (24) so as to divide the interior thereof into first and second spaces (25, 26). The coil structure (14) is securely sealed in the first space (25), and the second space (26) constitutes a liquid helium path.
摘要:
The conductive path of the current-limiting device is made of a strip-shaped super conductor (2), whereby the structure thereof (7) has a metallic substrate strip (3), at least one oxidic buffer layer (4), a type AB 2 Cu 3 O x super conductive layer (5) and a metal cover layer (6) which is arranged thereon. An intrinsically stable bifilar coil (11) is embodied with said super conductor (2), and a distance is maintained between adjacent coil windings (12i), wherein a distance maintainer (14) is arranged which is transparent to the coolant (K).
摘要:
A tightly wound superconducting coil device is disposed, which comprises a coil winding (4), in which no cooling medium is brought directly into contact with a superconducting wire; a cooling medium vessel (1) enclosing the coil winding (4); and an insulating member (2) disposed between the coil winding (4) and the cooling medium vessel (1); wherein two extremity portions ( 8, 8) of the coil winding (4) have a stability margin greater than the other part (9) thereof.
摘要:
An inline splicing system for brittle conductors which is comprised of a superconductor core, a superconductor coil having a length of conductor wound upon it with a terminal end, a supply spool of compatible conductor having a terminal end, both conductors being in an abutting relationship for a prescribed length, a spacer located between a portion of the abutting length and the core, and a soldering means which creates a solder along the abutting length that conforms to the circular surface of the core.
摘要:
A superconductor has an aluminum area (4) at the center in the cross section of said conductor therein and copper-covered multifilamentary NbTi composite conductor (2) at the peripheral parts of the cross section formed there around. The cross-sectional area ratio of (Cu+Al)/NbTi is in the range of 0.5 to 3.0 and the cross-sectional area ratio of Al/Cu is in the range of 0.05 to 0.5. This superconductor is provided by a method comprising the first step of providing a superconductor-copper composite hollow body in which copper films are applied around the superconductors, the second step of area reducing said composite hollow body, the third step of heat treating said body, the fourth step of inserting an aluminum body into the hollow of said hollow body, the fifth step of subjecting the body to working such as drawing, and the sixth step of subjecting the body to working such as twisting, forming or the like, an additional area reduction being carried out, if necessary, subsequent to the third step. A superconducting coil is made using the superconductor, and the coil is used for a magnetically levitated vehicle or a nuclear magnetic resonance apparatus.
摘要:
A magnet structure for particle acceleration includes at least two coils that include a continuous path of superconducting material (e.g. niobium tin (Nb3Sn) having an A15-type crystal structure) for electric current flow there through. The coils can be mounted in a bobbin, which together with the coils form a cold-mass structure. The coils are cooled to their superconducting temperatures via cryocoolers. Radial-tension members are coupled with the cold-mass structure to keep it centered, such that it remains substantially symmetrical about a central axis and is not pulled out of alignment by magnetic forces acting thereon. A wire can be wrapped around the coils, and a voltage can be applied thereto to quench the coils to prevent their operation of the coils in a partially superconducting condition, which may otherwise cause damage thereto. A magnetic yoke surrounds the cold-mass structure and includes a pair of poles that, in part, define an acceleration chamber there between. The inner surfaces of the poles have tapered profiles that establish a correct weak focusing requirement and that provide phase stability for ion acceleration and that reduce pole diameter by increasing energy gain versus radius. An integral magnetic shield is positioned about the yoke to contain magnetic fields emanating there from and can have a tortuous configuration to contain magnetic fields having a variety of orientations. The magnet structure can be very compact and can produce particularly high magnetic fields.