Multi-point testing system for dynamic surface magnetic field and thermal distribution of superconductor

Abstract

The invention discloses a multi-point testing system for the dynamic surface magnetic field and thermal distribution of a superconductor, which comprises a bracket consisting of a horizontally-arranged copper support plate and a vertically-arranged copper support bar; a vibration exciter, an aluminum tray and a superconductor testing device are sequentially arranged on the copper support plate in a bottom-top mode; and a height-adjustable aluminium beam, a permanent magnet hung on the aluminum beam and a permanent magnet fixed bolt for fixing the permanent magnet on the aluminium beam are horizontally arranged on the copper support bar. By using the multi-point testing system for the dynamic surface magnetic field and thermal distribution of a superconductor disclosed by the invention, the defects in the prior art that a deformation measuring sensor is poor in adaptability, poor in validity of measured data, poor in measurement accuracy, low in detection precision and the like can be overcome, thereby achieving the advantages that a deformation measuring sensor is good in adaptability, good in validity of measured data, good in measurement accuracy and high in detection precision.

Description

technical field [0001] The invention relates to a superconducting material performance testing technology, in particular to a multi-point testing system for superconductor dynamic surface magnetic field and heat distribution. Background technique [0002] The phenomenon of superconductivity is not unfamiliar to us, and every milestone breakthrough in the field of superconducting materials will attract the attention of almost everyone because of its unique physical properties and attractive application prospects. In fact, superconducting physics and materials scientists have been splitting their minds on the physical mechanism of superconducting, how to improve the critical parameters of superconducting, and seeking new superconducting materials for nearly a century. The research on superconducting materials and structural mechanics started with the development and application of low-temperature superconducting materials. The normal operation of superconducting materials requ...

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Problems solved by technology

[0003] At present, domestic superconducting experiments mainly focus on the measurement of the suspension force of the high-temperature superconducting suspension system, and there are very limited experiments on the deformation testing of the structure of superconducting materials in the world (almost none in China, and it has become the first choice for ITER-related research in China. Constraints), the main difficulty lies in the installation of detection devices in a limited space in a low temperature environment and the adaptability of deformation measurement sensors in an extremely low temperature and strong magnetic field environment; and there is almost no precision in the distribution of superconductor quench magneto-caloric and effective detection. Good testing methods and means

[0004] In the process of realizing the present invention, the inventors found that there are at least defects in the prior art, such as poor adaptability of deformation measurement sensors, poor measurement data validity, poor measurement accuracy and low detection accuracy.

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