本文利用虚拟仪器技术设计出一套高温超导单畴块材俘获磁场测试系统,能够准确及时地反馈出超导块材整体磁通冻结场的分布.软件平台由Labview搭建,实现计算机与测量设备的精确通信与控制,并对采集到的数据进行处理和表达.底层硬件包括步进电机驱动器,可控支架,高斯测量仪,数字多用表,低温霍尔探头,超导强磁体,低温杜瓦瓶,真空泵及制冷机.整套测量系统准确、高效、便捷、自动化成度高,为进一步高温超导体应用特性的研究和机理理论分析提供了可靠的实验技术方案.
A trapped magnetic fields measurement system of high temperature superconductor single domain bulk has been designed based on virtual instrument. Distribution of the whole magnetic fields can be obtained accurately and timely. The software platform is built by Labview, which can achieve the precise communication and control between computer and measurement equipments, and then the collected data will be processed and expressed. The underlying hardware includes stepper motor drive, 3D control frame, Gauss meter, digital multimeter, low temperature Hall probe, superconducting magnets, cryogenic dewar flask, vacuum pumps and cryoeooler. The whole meas- urement system is accurate, efficient, convenient, and highly automated. This system provides a reliable experimental techniques program for the research of applications and theoretical analysis of high temperature superconductors.
参考文献
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