摘要:
A superconducting cable is manufactured by providing spacers 12 in a plurality of cores 2 at the time of stranding of the cores 2, and removing the spacers 12 before the stranded cores 2 are housed in a thermally insulated pipe and housing the cores into the thermally insulated pipe while the strands are held in a slacked state. By means of temporal interposition of the spacers, there is easily manufactured three cores having sufficient slack to manage thermal contraction which occurs when the cores are cooled in the thermally insulated pipe.
摘要:
A terminal structure of cryogenic equipment for leading a terminal of cryogenic equipment 100 from a very low temperature portion to a room temperature portion through a bushing, having a feature in that a connecting/heat-insulating portion 300 adiabatically connected with the aforementioned very low temperature portion 200 and the aforementioned room temperature portion 400 is provided along the outer circumference of the aforementioned bushing 30 between the aforementioned very low temperature portion 200 and the aforementioned room temperature portion 400.
摘要:
A phase separation jig (100) for a superconducting cable includes: a cable holder (10) maintaining each core (80) of a multi-core superconducting cable (2) in a predetermined tolerable bending manner; and a coupler (20, 30) holding the cable holder (10) for each core (80) at a predetermined spacing with each other. Each core (80) is spaced apart from each other and maintained in a tolerable bending manner by the holder (10). Accordingly, a phase separation structure can be obtained which can regulate deformation of the cable and prevent abnormal deformation even for a superconducting cable.
摘要:
A superconductive cable capable of promoting a heat insulating function by a heat insulating tube. A heat insulating tube contained within a cable core of a superconductive cable includes a first metal tube and a second metal tube and a third metal tube arranged from an inner side in a diameter direction. An inner side heat insulating portion is formed between the first metal tube and the second metal tube, and an outer side heat insulating portion is formed on an inner side of the third metal tube and on an outer side of the inner side heat insulating portion. A heat insulating function of the heat insulating portion on an outer side is set to be lower than a heat insulating function of the heat insulating portion on an inner side thereof.
摘要:
An image shooting device with a camera shake correction function is provided. The image shooting device is capable of avoiding the deterioration of image quality due to performing camera shake correction. An image shooting control unit of the image shooting device can be configured to select to take in either one piece of image data for ordinary image shooting or a plurality of pieces of image data for camera shake correction, on the basis of the determination result of a determination unit. It also can be configured to take in both one piece of image data for ordinary image shooting and a plurality of pieces of image data for camera shake correction.
摘要:
A transmission probe and a reception probe for transmitting and receiving a wideband ultrasonic wave are provided. Each time when the locations of the probes and are moved, a received wave Gj(t) is obtained. Based on a spectrum Fj(f) corresponding to the received wave Gj(t), a narrowband spectrum FAj(f) is extracted. A component wave GAj(t) corresponding to the narrowband spectrum FAj(f) is found by inverse Fourier transformation. A longitudinal wave primary resonance frequency f1 having a relationship with a thickness W (mm) of an inspection target and a primary resonance frequency fS1 of a transverse wave generated by mode conversion are calculated. A comparative display of the component waves GAj(t) is presented using f1, fS1 and sizing coefficients ns1, ns2, ns3 and ns4 for high precision inspection. Based on the measurement point which shows a wave generation in the comparative screen of the component waves GAj(t), it is determined that there is a flaw Z at a certain position inside the inspection target immediately below a line segment connecting the transmission probe and the reception probe.
摘要:
An electric power feed structure for a superconducting apparatus, which is used to input or output electric power between the cryogenic-temperature side and the room-temperature side, comprises a coolant vessel containing a superconducting section provided in the superconducting apparatus, a vacuum thermal insulation vessel arranged to surround the outer periphery of the coolant vessel, and a feed conductor part having one end arranged in the room temperature side and having the other end connected to the superconducting section. The feed conductor part is divided into a cryogenic-temperature side conductor connected to the superconducting section and a room-temperature side conductor arranged in the room temperature side such that the cryogenic-temperature side conductor and the room-temperature side conductor can be detachably attached to each other. Thus, provided are the electric power feed structure for a superconducting apparatus and a superconducting cable line equipped with the electric power feed structure in which the electric power fed between the cryogenic-temperature side and the room-temperature side can be easily varied by changing an effective conductor cross-sectional area.
摘要:
A superconducting cable line includes a heat insulation pipe for a fluid for transporting a fluid having a temperature lower than an ordinary temperature and a superconducting cable housed in the heat insulation pipe for a fluid. The superconducting cable including a cable core in a heat insulation pipe for a cable is housed in the heat insulation pipe for a fluid to make a temperature difference between the inside and outside of the heat insulation pipe smaller than that in a situation of laying in an atmosphere. In addition, the superconducting cable has a double heat insulation structure formed with the heat insulation pipe for a cable and the heat insulation pipe for a fluids. Therefore, the superconducting cable line can effectively reduce heat intrusion from the outside into the cable.
摘要:
The invention offers a superconducting cable easy to form a twisted structure even when a plurality of cable cores are used and a DC transmission system incorporating the superconducting cable. A superconducting cable 1 has a structure formed by twisting together two types of cable cores (two first cores 2 and one second core 3) having different structures and then housing them in a heat-insulated pipe 7. The first cores 2 each have a first superconducting layer 2a, to be used either as an outward line or for the transmission for a pole in DC transmission, and have no superconducting layer other than the first superconducting layer 2a. The second core 3 has a second superconducting layer 3a, to be used as a return line or neutral line in DC transmission, and has no superconducting layer other than the second superconducting layer 3a. The second superconducting layer 3a has an inner diameter larger than the outer diameter of the first superconducting layer 2a.
摘要:
The present invention discloses a direct electric current superconducting cable having a core and a plurality of superconducting layers provided over the core with end portions of the superconducting layers exposed in a step-by-step manner from an outer layer to an inner layer and connected individually to outgoing conductors. The superconducting layers are insulated from each other. An insulating fixing member is used to support the core and the outgoing conductors. An electrical insulation layer, a return-current conductor layer and an insulating protective layer in that order surrounds the outermost superconducting layer.