通过对杨氏模型和Hull John R模型进行改进,使其既适用于径向超导磁悬浮又适用于轴向超导磁悬浮,改进模型既考虑了磁滞特性,又引入了超导体与永磁体之间有倾角的情况。利用改进的磁通冻结镜像模型对径向超导磁悬浮轴承的悬浮力及刚度进...通过对杨氏模型和Hull John R模型进行改进,使其既适用于径向超导磁悬浮又适用于轴向超导磁悬浮,改进模型既考虑了磁滞特性,又引入了超导体与永磁体之间有倾角的情况。利用改进的磁通冻结镜像模型对径向超导磁悬浮轴承的悬浮力及刚度进行了理论计算,结果表明:磁悬浮力随着初始径向间隙、径向偏移和轴向位移的变化而变化,且与这三者并不成单调的正比或反比关系;在所研究的位移范围内,刚度为正值且随位移变化而变化;由于磁滞效应的影响,永磁转子作往复运动时在同一点受到的力会衰减。展开更多
We have developed an experimental setup that has been proven suitable for the study of photoresponse of high Tc superconductors. The distinguish feature of this experimental setup lies mainly in the data acquisition s...We have developed an experimental setup that has been proven suitable for the study of photoresponse of high Tc superconductors. The distinguish feature of this experimental setup lies mainly in the data acquisition system which is equipped with computer as well as the IEEE-488 interface bus. which ensures the accuracy to experimental results. Using the experimental setup, the optical response to laser radiation in high-Tc superconductors has been examined, both of bolometric effect and nonequilibrium optical response are revealed.展开更多
文摘通过对杨氏模型和Hull John R模型进行改进,使其既适用于径向超导磁悬浮又适用于轴向超导磁悬浮,改进模型既考虑了磁滞特性,又引入了超导体与永磁体之间有倾角的情况。利用改进的磁通冻结镜像模型对径向超导磁悬浮轴承的悬浮力及刚度进行了理论计算,结果表明:磁悬浮力随着初始径向间隙、径向偏移和轴向位移的变化而变化,且与这三者并不成单调的正比或反比关系;在所研究的位移范围内,刚度为正值且随位移变化而变化;由于磁滞效应的影响,永磁转子作往复运动时在同一点受到的力会衰减。
文摘We have developed an experimental setup that has been proven suitable for the study of photoresponse of high Tc superconductors. The distinguish feature of this experimental setup lies mainly in the data acquisition system which is equipped with computer as well as the IEEE-488 interface bus. which ensures the accuracy to experimental results. Using the experimental setup, the optical response to laser radiation in high-Tc superconductors has been examined, both of bolometric effect and nonequilibrium optical response are revealed.
