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Device and method for testing current-carrying capacity of high-temperature superconducting tape or coil under multi-field coupling

A technology of high-temperature superconducting tape and current-carrying capacity, which is applied in the directions of measuring devices, environmental/reliability testing, and measuring electricity, and can solve problems such as inability to test high-temperature superconducting tape current-carrying capacity

Active Publication Date: 2019-12-31
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention proposes an experimental device for testing the current-carrying capacity of high-temperature superconducting strips and coils under multi-field coupling. flow problem, to fill the gap in the country

Method used

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  • Device and method for testing current-carrying capacity of high-temperature superconducting tape or coil under multi-field coupling
  • Device and method for testing current-carrying capacity of high-temperature superconducting tape or coil under multi-field coupling
  • Device and method for testing current-carrying capacity of high-temperature superconducting tape or coil under multi-field coupling

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Experimental program
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Embodiment 1

[0037] First of all, the vacuum dewar of the cryogenic system obtains a high vacuum environment through the exhaust unit to achieve vacuum insulation between the inside and outside, less heat conduction, heat radiation and heat exchange between the inside and outside, and reduce heat loss. Until the vacuum of the whole system is better than 5.0×10-4Pa.

[0038] Turn on the GM refrigerator of the low-temperature system to cool the refrigerant, obtain a minimum 20K low-temperature refrigerant, and realize the cooling of the superconducting wire and coil through the circulation of the refrigerant, and change the heat loss of the system according to the required low-temperature experimental environmental conditions to achieve Set in a low temperature environment between 20K and 70K.

[0039] At the same time, according to the experimental environmental condition parameters required by the experiment, the loading system is controlled to load the high temperature superconducting str...

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Abstract

The invention discloses an experimental device for testing the current-carrying capacity of a high-temperature superconducting tape or coil under multi-field coupling. The device comprises a loading system module, a low-temperature system module, a magnetic field system module and a measurement system module. The loading system module, the low-temperature system module and the magnetic field system module are used for comprehensively simulating the actual application environment of a superconducting wire. The measurement system module is used for measuring characteristic parameters of a superconducting wire or coil in states of temperature zone disturbance, magnetic field disturbance, and stress strain on the superconducting wire or coil. In addition, the invention also discloses a methodcomprising the following steps: acquiring a high-vacuum environment and a low-temperature environment and controlling a loading system to carry out stress loading on the high-temperature superconducting tape or the coil or controlling a magnetic field system to carry out magnetic field loading on the high-temperature superconducting tape or the coil; and controlling a constant current source to carry out current loading on the superconducting tape or the coil and recording the change of a nanovoltmeter. Therefore, a multi-field coupling test problem of the high-temperature superconducting tapetest is solved; and the domestic blank is filled.

Description

technical field [0001] The invention relates to the field of cyclotrons, in particular to an experimental device for testing the current-carrying capacity of high-temperature superconducting strips and coils under multi-field coupling. Background technique [0002] Since 1911, the Dutch physicist Merlin Onnes discovered that mercury has the superconducting property of "zero resistance" at low temperature. So far, the development of superconducting materials has been changing with each passing day. Especially after 1986, the breakthrough progress of high-temperature superconducting materials has raised the actual operating temperature of superconducting materials to the temperature range of liquid nitrogen, which has great practical significance for the application of superconducting materials. With the rapid development of low-temperature refrigeration technology, more and more people have begun to conduct research on the practical application of superconducting materials. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/001G01R31/003
Inventor 朱晓锋张素平潘高峰
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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