强磁场下高温超导带材交流损耗特性测试装置及测试方法

By designing a testing device for the AC loss characteristics of high-temperature superconducting tapes under strong magnetic fields, and by dynamically adjusting the magnetic field and frequency using superconducting magnets and driving components, the problem of loss testing under high-frequency strong magnetic fields was solved, and the accurate evaluation of the loss characteristics of high-temperature superconducting tapes was achieved.

CN115902423BActive Publication Date: 2026-07-17SOUTHWESTERN INST OF PHYSICS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHWESTERN INST OF PHYSICS
Filing Date
2022-12-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies cannot accurately test the AC loss characteristics of high-temperature superconducting tapes under high-frequency strong magnetic fields, nor can they simulate high-frequency strong magnetic field environments, resulting in an inability to predict the loss characteristics of superconductors under conditions of high magnetic field change rate.

Method used

A device for testing the AC loss characteristics of high-temperature superconducting tape under a strong magnetic field was designed. The device includes a superconducting magnet, inner and outer Dewars, and a driving component. An adjustable magnetic field is applied through the magnet coil, and the driving component drives the tape to move within the magnetic field. Combined with a cryogenic liquid nitrogen environment, the magnetic field and frequency are dynamically adjusted for testing.

Benefits of technology

The AC loss test of high-temperature superconducting tape under high frequency and strong magnetic field was realized, overcoming the shortcomings of the existing technology and enabling accurate evaluation of the loss characteristics of the tape under complex magnetic field environment.

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Abstract

本发明公开了一种强磁场下高温超导带材交流损耗特性测试装置及测试方法,包括超导磁体、外杜瓦、内杜瓦和驱动组件,超导磁体设置有贯穿的测试孔,外杜瓦的下部设置在所述测试孔内,内杜瓦设置在所述外杜瓦内部,所述内杜瓦内部设置有可转动的上导轮和下导轮,超导带材呈环形缠绕在所述上导轮和下导轮上;驱动组件驱动所述上导轮转动,所述外杜瓦和所述内杜瓦内均添加有低温液氮;本发明通过内含磁体线圈的超导磁体对超导带材施加磁场,可以连续动态调整磁场强度和磁场变化率,并通过驱动组件驱动超导带材在磁场内移动,调节测试频率,从而可以实现高温超导带材在高频强磁场下的交流损耗测试。
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