Multi-field coupling testing system of high temperature superconducting material
A superconducting material and testing system technology, applied in the field of high-temperature superconducting material measurement, can solve the problems of isolation research, little attention to the influence of critical current density, little attention to the law of the influence of external magnetic field, etc.
Inactive Publication Date: 2012-05-02
LANZHOU UNIVERSITY
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Problems solved by technology
Due to the limitations of the experimental equipment, there is no comprehensive report on the test results related to its force-electricity-magnetic-thermal multi-field coupling characteristics.
[0003] At present, the force-electricity-magnetism-thermal multi-field coupling test for high-temperature superconducting materials generally only involves one or two of them. In the study of the influence of current density, little attention has been paid to the influence of the external magnetic field on its mechanical properties such as Young's modulus; researchers who apply high-temperature superconducting materials generally focus on the influence of the stress field (material and structural deformation) on the magnetic field configuration of the magnet. And little attention has been paid to its influence on the critical current density. As mentioned earlier, these characteristics of high-temperature superconducting materials are interrelated and affect each other, and cannot be studied in isolation
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[0017] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0018] Such as figure 1 , figure 2 As shown, the high-temperature superconducting material multi-field coupling test system includes a low-temperature Dewar device and a magnetic field generator. The magnetic field generator has a cavity structure inside. The magnet cavity has a diameter of 150 mm and a height of 450 mm. The uniform magnetic field area 9, the low-temperature Dewar device is arranged in the uniform magnetic field area 9, and the low-temperature Dewar device includes a low-temperature force application mechanism 4, a low-temperature force application mechanism 5, an insulating member 3, a low-temperature clamp 2, a cover 8, an insulating member 3, T...
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The invention discloses a multi-field coupling testing system of a high temperature superconducting material. A cavity structure is formed inside a magnetic field generating device; a magnetic field uniform region (9) is arranged in the cavity (10); a low-temperature dewar device is arranged in the magnetic field uniform region (9) and includes a low-temperature force application mechanism (4, 5), an insulating member (3), low-temperature clamps (2), a close cover (8), an insulating member (3), a dewar container (1), and a temperature probe (6). According to the invention, a low-temperature dewar device is used measure a combined effect of a force, electricity, magnetism, heat on a high temperature superconducting material in sealed uniform magnetic field space, so that an objective of measurement on a multi-field coupling effect of a force, electricity, magnetism, heat on a high temperature superconducting material is realized can be achieved.
Description
technical field [0001] The invention relates to the field of high-temperature superconducting material measurement, in particular to a multi-field coupling test system for measuring the effects of force, magnetism, heat and electricity on high-temperature superconducting materials. Background technique [0002] The discovery of high-temperature superconducting materials (generally referring to superconducting materials with a critical temperature higher than 77K) has strongly promoted the research and development of applied superconducting related fields. , Superconducting magnets and other applications will become a reality in this century. Similar to traditional low-temperature superconductors, high-temperature superconductors also have three critical characteristic parameters, critical magnetic field (including upper and lower critical magnetic fields), critical temperature and critical current density. Considering the multi-field coupling characteristics in its general ...
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IPC IPC(8): G01R33/12
Inventor 张兴义周军赵沛周又和
Owner LANZHOU UNIVERSITY