摘要:
Methods and devices for producing a superconductive conductor are disclosed. The method includes providing a plurality of conductive strips by means of a strip provision device, applying liquid soldering agent onto the plurality of conductive strips, stacking the conductive strips wetted with soldering agent, and forming a superconductive body by machining the strip stack.
摘要:
An MOCVD system fabricates high quality superconductor tapes with variable thicknesses. The MOCVD system can include a gas flow chamber between two parallel channels in a housing. A substrate tape is heated and then passed through the MOCVD housing such that the gas flow is perpendicular to the tape's surface. Precursors are injected into the gas flow for deposition on the substrate tape. In this way, superconductor tapes can be fabricated with variable thicknesses, uniform precursor deposition, and high critical current densities.
摘要:
It is an objective of the invention to provide a high-power supply cable characterized in that even when mounted in a narrow space where the cable undergoes a repetitive bending motion, any undesirable deformation out of the bending plane is small. There is provided a power-supply cable including: an electric wire including an electrical conductor and a resin sheath covering the electrical conductor, the electric wire having a tendency to generate a curl under a no-load condition, the curl having a curling direction, the curling direction being a normal to the curl, the electric wire having one or more longitudinal ends; a connecting terminal disposed at one of the longitudinal ends of the electric wire; and a curling tendency direction indicator showing the curling direction, the indicator being disposed along a normal line to the curl of the electric wire.
摘要:
There is provided a method for producing a substrate suitable for supporting an elongated superconducting element, wherein one or more elongated strips of masking material are placed on a solid element (202) so as to form one or more exposed elongated areas being delimited on one or two sides by elongated strip of masking material, and placing filling material on the solid element so that each exposed elongated area within the one or more exposed elongated areas is covered by a portion of filling material (318a-c) where each portion of filling material also covers at least a portion of the adjacent elongated strip of masking material and subsequently removing the one or more elongated strips of masking material so as to form one or more corresponding undercut volumes, where each undercut volume within the one or more undercut volumes is formed along a portion of filling material and between the portion of filling material and the solid element. The method may further comprise placing buffer material (640) and or superconducting material (642, 644, 646)) on the substrate, so as to provide a superconducting structure (601) with reduced AC losses.
摘要:
An object of the present invention is to provide an elastic signal transmission cable having a length of several centimeters to several meters that has a shape deformation tracking ability and enables high-speed signal transmission. The inventive elastic signal transmission cable has an elasticity of 10% or more and transmission loss of 10 dB/m or less in a relaxed state at 250 MHz, and comprises an elastic cylindrical body having an elasticity of 10% or more and a conductor portion containing at least two conductor wires wound in the same direction around the elastic cylindrical body.
摘要:
A down-hole tool includes a first and second portion that are moveable relative to one another, but are electrically coupled together. A rigid tube formed into a helical coil extends between the first and second portions. The helical coil is expandable and compressible in response to movement between the first and second portions. A conductor is positioned within the helically wound tube and is adapted to pass electrical signals between the first and second portions.
摘要:
A leading end portion (33) of a supply of cordge (31) is clamped to a mandrel (32) such that it is straight, after which a plurality of convolutions of the cordage are wound on the mandrel. The cordage is severed from the supply and a trailing end portion (34) of the wound cordage is clamped to the mandrel in a manner which causes it to be straight and hence suitable for termination with a modular plug (37). The coiled cordage is heated and cooled and is then removed from the mandrel while simultaneously the direction of the helices is reversed. Then the cordage is severed at a predetermined location to produce two retractile cords, for example, one including the leading end portion of the length of wound cordage and a newly formed straight trailing portion. The second cord includes a newly formed straight leading end portion and the initial trailing end portion. The newly formed end portion of each cord is caused to be held in a straight configuration and annealed to cause it to retain that configuration. This facilitates the termination of the newly formed end of each cord and allows automatic cord-making apparatus to be used to make cords of varying lengths.
摘要:
A molded plastic fixture holds an end of a telephone wire cord wound on a mandrel to retain the cord in position during subsequent heat processing. The mandrel fits into a bore in the fixture and an angled arm extending from one side holds a band spacer and strain relief member at the end of the cord. An opposite side of the fixture includes a channel to receive cords with no strain relief member. A manually adjustable screw clamps the end of the mandrel within the bore of the fixture.
摘要:
THIS DISCLOSURE DESCRIBES A TELEPHONE CORD STRUCTURE CONSISTING OF A PLURALITY OF TUBED POLYMER INSULATED TINSEL CONDUCTORS ENCLOSED IN A POLYMER OUTER JACEKT. A METHOD FOR PRODUCING THE CORD INCLUDES THE STEPS OF REHEATING AND STRETCHING THE POLYMER INSULATION TO ACHIEVE INCREASED TENSILE MODULUS AND STRAIN MEMORY AND TO GAIN ADDITIONAL CONDUCTOR LENGTH.