高温超导磁悬浮测试过程对测试结果的交叉影响作用

Cross effects of measurement processes on force data in high temperature superconducting maglev system

在高温超导磁悬浮系统中,超导体和应用外磁场之间的电磁作用比较复杂。通常,任何测试过程对高温超导磁悬浮系统中相互作用力(悬浮力和导向力)结果都有影响。为了能够得到准确的测试结果,文中研究了测试过程对导向力和悬浮力测试结果的影响,发现高温超导磁悬浮系统中存在的磁历史效应导致了这种影响的存在是必然的,而且是交叉影响作用。实验数据进一步指出,在实际的测试过程中必须根据具体的运动路径来选择悬浮力和导向力的测试过程和顺序,以尽可能地减小两者之间的负面影响。根据不同的测试目的,文中也推荐了对应合理的测试方法。

Electromagnetic interaction between high temperature superconductor （HTSC） and applied magnetic field is intri cate in high temperature superconducting （HTS） maglev system. Usually, any measurement process affects the force data of levitation force and guidance force. To get the precise measurement data, effect of measurement on levitation and guidance forces was investigated. It is found that magnetic history effect does results in the cross effect. The further experiments point out that the measurement order of forces data should be made according to the movement route of HTSC in the actual measurement process in order to avoid the negative cross effect as little as possible. Moreover, it is recommended the corresponding reasonable measurement process based on the different measurement purpose in the paper.