高温超导磁悬浮深冷测试系统设计  

The Design of a HTS Deep Cooling Maglev Measurement System

作　　者：江河[1] 王家素[1] 王素玉[1] 朱敏[1] 任仲友[1] 王晓融[1] 沈旭明[1] 宋宏海[1] 

机构地区：[1]西南交通大学超导技术研究所,成都610031

出　　处：《低温与超导》2002年第1期22-24,29,共4页Cryogenics and Superconductivity

基　　金：国家 8 6 3计划 (86 3 - CD0 80 0 0 0 )资助

摘　　要：介绍一种使用 G- M制冷机实现深冷环境的高温超导磁悬浮测试系统。高温超导体块材YBa Cu O被固定在制冷机冷头上 ,其温度通过温度控制器可以控制在 1 0 0 K到 40 K范围内。永久磁体 Nd Fe B固定在位于 YBa Cu O上方高温超导磁悬浮测试系统的垂直运动部件上 ,并在计算机控制下作垂直运动以改变它与 YBa Cu O之间的距离。同时 ,计算机采集数据得到 YBa Cu O与 Nd Fe B之间悬浮力与距离的关系。通过温度设定 ,可得到 YBa Cu O在不同温度下的悬浮性能。A HTS Maglev Measurement System using G-M refrigerator to obtain the deep cooling condition is described. The YBaCuO bulk is fixed on the cooling head of the refrigerator, and its temperature can be controlled by a temperature controller between 100K and 40K. The permanent magnet NdFeB is fixed on the part of the HTS Maglev Measurement System moving vertically over the YBaCuO, which can move up and down vertically under the control of computer to change its gap with the YBaCuO. At the same time, the computer samples the data and obtains the relationship between levitation force and gap. The levitation performance of YBaCuO can be obtained at different temperature by changing the temperature.

关 键 词：G-M制冷机 悬浮力 YBACUO 温度控制器 设计 超导体 高温超导磁悬浮深冷测试系统 

分 类 号：TB651[一般工业技术—制冷工程] TM26[一般工业技术—材料科学与工程]