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A fiber-embedded superconducting tape and its preparation method

A technology of superconducting strips and superconducting bare strips, which is applied in the usage of superconducting elements, superconducting devices, superconducting/high-conducting conductors, etc., can solve the problem of no explanation or report found, and the replaceability of superconducting strips and universal constraints, the data has not yet been collected, etc., to achieve the effect of mature technology and low production cost

Active Publication Date: 2020-07-14
上海翌曦科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, in this structure, the optical fiber and the superconducting tape are packaged synchronously with solder. Therefore, when the optical fiber breaks, engineers and technicians will not be able to replace the original broken measuring optical fiber with a new measuring optical fiber. The replaceability and universality of superconducting tapes with inner-enclosed optical fibers are greatly restricted
[0012] At present, no description or report of similar technology of the present invention has been found, and no similar data at home and abroad have been collected yet.

Method used

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  • A fiber-embedded superconducting tape and its preparation method
  • A fiber-embedded superconducting tape and its preparation method
  • A fiber-embedded superconducting tape and its preparation method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0050] This embodiment provides a fiber-embedded superconducting tape, including an upper protective metal tape, a lower protective metal tape, a bare superconducting tape and a measuring optical fiber. The surface of the upper protective metal strip or the lower protective metal strip is engraved with one or more deep grooves along the length direction of the strip, and the measuring optical fiber is embedded in the deep groove. The depth of the deep groove is less than the thickness of the protective metal strip and greater than the diameter of the optical fiber, said bare superconducting tape is encapsulated between upper and lower protective metal tapes;

[0051] The surfaces of the upper protective metal strip and the lower protective metal strip are tinned;

[0052] The upper protective metal belt and the lower protective metal belt are made of red copper;

[0053] The measuring optical fiber is a commercial-grade single-mode optical fiber, the measuring optical fiber i...

Embodiment 2

[0068] This embodiment provides a fiber-embedded superconducting tape, including an upper protective metal tape, a lower protective metal tape, a bare superconducting tape and a measuring optical fiber. The surface of the upper protective metal strip or the lower protective metal strip is engraved with one or more deep grooves along the length direction of the strip, and the measuring optical fiber is embedded in the deep groove. The depth of the deep groove is less than the thickness of the protective metal strip and greater than the diameter of the optical fiber, said bare superconducting tape is encapsulated between upper and lower protective metal tapes;

[0069] The surface of the upper protective metal strip and the lower protective metal strip has been tinned;

[0070] The upper protective metal belt and the lower protective metal belt are made of brass;

[0071] The measuring optical fiber can use a commercial-grade multimode optical fiber, the measuring optical fiber...

Embodiment 3

[0083] Content 1: In order to demonstrate the advantages of the present invention in the application of superconducting quench self-detection, this example uses the embedded optical fiber superconducting tape with quench self-detection function prepared in Example 1 to wind a single-cake superconducting coil , whose structure is as Figure 4 As shown, there is no insulating material between the turns of the coil; the optical fiber at the end of the superconducting strip is connected to the optical fiber temperature / stress demodulator through a jumper; the outgoing end of the superconducting coil is connected to a constant current power supply; Voltage leads; the voltage leads are connected to a digital multimeter. The constant current power supply system, voltage acquisition system, and temperature acquisition system are synchronously controlled by self-developed software.

[0084] The main structural parameters of the superconducting coil and the material description of the ...

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Abstract

The invention provides a fiber-embedded superconducting tape and a preparation method thereof. The fiber-embedded superconducting tape includes an upper protective metal tape, a lower protective metal tape, a bare superconducting tape and a measuring optical fiber. The upper The surface of the protective metal strip and / or the lower protective metal strip is engraved with one or more deep grooves along the length direction of the strip, and the measuring optical fiber is embedded in the deep groove. The depth of the deep groove is less than the thickness of the protective metal strip and greater than The diameter of the optical fiber, the superconducting bare strip is packaged between the upper protective metal strip and the lower protective metal strip through high-temperature solder; during preparation, it also includes embedding the measurement optical fiber in the deep groove, and connecting the measurement optical fiber with the low-temperature solder The step in which superconducting tapes are encapsulated together. The invention realizes the measurement of the temperature distribution of the superconducting strip, and at the same time, the structure of the superconducting strip is not affected, and the measuring optical fiber can be replaced, which significantly improves the reutilization rate of the superconducting strip and the finished product of the embedded optical fiber superconducting strip Rate.

Description

technical field [0001] The invention relates to a fiber-embedded superconducting tape and a preparation method thereof, belonging to the field of superconducting tapes and manufacturing. Background technique [0002] Thanks to the characteristics of nearly zero-resistance power transmission at a specific temperature, the high-temperature superconducting tape is significantly superior to ordinary conductors in terms of current-carrying capacity, and the coils wound from it can generate more electricity than conventional magnets of the same volume. Therefore, it has great research value and application prospects in the fields of electric motors, engines, transformers, superconducting energy storage, magnets, power cables, etc. [0003] However, when the superconducting strip is subjected to a current exceeding its specified critical value or its ambient temperature is higher than the critical temperature, the superconducting strip will undergo a phase transition process from a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B12/06G01K11/32
CPCH01B12/06G01K11/32Y02E40/60
Inventor 江俊杰李柱永盛杰
Owner 上海翌曦科技发展有限公司
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