Abstract: A superconducting compound cable which comprises a plurality of strands each having therein at least one filament of a superconducting compound material in the lengthwise direction of the strand, said strands being of an elliptical or flat shape in cross section, arranged in layers and stranded at a predetermined pitch in the axial direction of the cable, and the total cross-sectional area of all the strands in the cable being more than 50 percent of that of the rectangle or trapezoid circumscribed about the periphery in a cross section of the cable.

Abstract: The present invention relates to a high current capacity superconductor having a high current density and high stability suitable as a superconductive coil for a large superconductive magnet. In a composite superconductor (1) having superconductive wires (2) and an electrically and thermally highly conductive stable metal (4) electrically coupled in the longitudinal direction, a high current capacity composite superconductor characterized by having an inorganic compound film (5) on the surface of the stabilizing metal (4).

Abstract: A superconducting compound cable which comprises a plurality of strands each having therein at least one filament of a superconducting compound material in the lengthwise direction of the strand, said strands being of an elliptical or flat shape in cross section, arranged in layers and stranded at a predetermined pitch in the axial direction of the cable, and the total cross-sectional area of all the strands in the cable being more than 50 percent of that of the rectangle or trapezoid circumscribed about the periphery in a cross section of the cable.

Abstract: A superconducting compound wire which comprises a plurality of strands having superconducting compound therein, a part or all of the strands having inclination to the lengthwise direction of the superconducting wire, and the strands being not substantially together with each other.

Abstract: This invention relates to a detector for detecting the state of electrically non-conductive or substantially electrically non-conductive fluid, such as its flowing velocity, direction, composition or pressure, comprising a transducer to generate an electric signal responsive to said state of said fluid, said transducer having at least one ionizing area exposed to said fluid and said electric signal appearing as variation in conductance across said ionizing area, an amplifier to amplify said electric signal from said transducer, having a high input impedance and a low output impedance, and means to shield said transducer and said amplifier.

Abstract: A superconducting compound wire which comprises a plurality of strands having superconducting compound, a part or all of the strands having inclination to the lengthwise direction of the superconducting wire, and the strands being not substantially together with each other.