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Critical current testing device and method for high-temperature superconducting tape in spiral winding state

A technology of high-temperature superconducting tape and critical current, applied to the critical current testing device in the spirally wound state of the high-temperature superconducting tape, the current testing device, and the field of critical current testing in the spirally wound state of the high-temperature superconducting tape, capable of Solve the problems of large errors and low efficiency of high-temperature superconducting strips, and achieve the effect of solving large errors, convenient test operation, and improving accuracy

Active Publication Date: 2020-08-14
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problem of large errors and low efficiency when the existing testing device tests the high-temperature superconducting strip, the present invention provides a critical current testing device and method for the high-temperature superconducting strip in a spirally wound state

Method used

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  • Critical current testing device and method for high-temperature superconducting tape in spiral winding state
  • Critical current testing device and method for high-temperature superconducting tape in spiral winding state

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Embodiment 1

[0060] see Figure 1-7 , the present embodiment provides a critical current testing device suitable for the high-temperature superconducting tape in a spirally wound state, the device is used to test the critical current characteristics of the high-temperature superconducting tape 2 under the stress and strain of the spiral winding, for The safe application of high temperature superconducting tape 2 in superconducting power devices is of great significance. The critical current testing device includes a substrate 1, a fixed platform 1 3, a fixed platform 2 4 and a locking component, and may also include a plurality of high-temperature superconducting strips 2, a fixed component 1 and a fixed component 2. Wherein, the first fixed platform 3 and the second fixed platform 4 adopt the same fixed platform in this embodiment, but in other embodiments, these two platforms can be different. Similarly, the first fixed component and the second fixed component also use the same fixed co...

Embodiment 2

[0077] This embodiment provides a critical current testing device suitable for high-temperature superconducting strips in a helically wound state, which is similar to that of Example 1, except that the device in this embodiment does not include high-temperature superconducting strips 2, However, the high-temperature superconducting strip 2 exists only as a test object. For different high-temperature superconducting strips 2, the test device of this embodiment can test it, and because the test device is not provided with high-temperature superconducting strips 2, the manufacturing cost of the device can be reduced, and it is convenient to test various high-temperature superconducting strips. Superconducting strip 2 is tested to expand the scope of application of the test.

Embodiment 3

[0079] This embodiment provides a critical current testing system, which includes the critical current testing device in Embodiment 1 or 2, which is suitable for the high-temperature superconducting strip in a spirally wound state, and also includes a current measuring device and a current generating device. The current generating device is used to generate current. The device provides positive and negative terminals, and the positive and negative terminals are connected to the fixed platform 1 3 and the fixed platform 2 4 through cables, and output the test current to both ends of the high temperature superconducting strip 2, Thereby various critical currents can be tested. The current measuring device can measure the magnitude of the current, which is convenient for the test personnel to check the magnitude of the current of the high-temperature superconducting strip 2 in time, and is convenient for recording and counting the critical current data.

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Abstract

The invention discloses a critical current testing device and method for a high-temperature superconducting tape in a spiral winding state. The device comprises a base body, a first fixing platform, asecond fixing platform and a locking assembly. The base body comprises a first positioning section, a first limiting section, a winding section, a second limiting section and a second positioning section which are coaxially arranged and sequentially connected to form a stepped shaft. A plurality of spiral grooves with different pitches are formed in the outer wall of the winding section. At leastone spiral groove is arranged along the clockwise direction of the axial direction of the base body, and the rest spiral grooves are arranged along the anticlockwise direction of the axial directionof the base body. The first fixing platform comprises a first sleeving section and a first platform section. The second fixing platform comprises a second sleeving section and a second platform section; The locking assembly comprises a first locking piece and a second locking piece. According to the invention, the critical current testing function of the high-temperature superconducting tape under different spiral pitches can be realized, the exploration of the regularity of the critical characteristics of the high-temperature superconducting tape is realized, and a reliable experimental testing method is provided for the application and popularization of the high-temperature superconducting tape.

Description

technical field [0001] The present invention relates to a current testing device in the technical field of high-temperature superconducting applications, in particular to a critical current testing device suitable for high-temperature superconducting strips in a helical winding state, and also relates to a device for testing high-temperature superconducting strips of the device that is suitable for spiral winding of high-temperature superconducting strips. Critical current test method in winding state. Background technique [0002] Since the discovery of superconductivity in 1911, the application of superconducting materials has been greatly developed. With the development of superconducting technology, it has great applications in fields such as medical treatment, large accelerators, fusion devices and power systems. Equivalent to conventional conductors, superconducting materials greatly increase the current-carrying density of conductors and coils, reduce the size of con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/12
CPCG01R33/1246Y02E40/60
Inventor 张俊生张午权
Owner HEFEI UNIV OF TECH
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