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高Tc RF——SQUID测量人体磁场
Using High Tc RF-SQUID to Determine Human Magnetic Feilds
【摘要】 新研制成功的、工作于液氮温度下的高临界转变温度超导量子干涉器(以下简写成为高Tc RF—SQUID),加上磁聚焦器之后,测量磁场的灵敏度已达10-12T(10-(?)G.在国家地震局的零磁实验室中,我们用这样的RF—SQUID,初步地测得了与心脏跳动及手指动脉血流有关的人体磁信号.
【Abstract】 Operating in liquid nitrogen(78 K),with a magnetic focaliser, the magnetic measurement sensitivity of the RF-SQUID[6] could reach 10-12T(10-8G). Using such RF-SQUID, in the magnetically shielded room constructed by the Chinese National Bureau of Seismology,the human magnetic signals relative to heart and arterial blood of finger have been detected preliminarily.
【关键词】 超导量子干涉器;
磁通分辨率;
零磁空间实验室;
磁聚焦器;
人体磁信号;
【Key words】 Superconducting quantum interference device. Magnetic flux resolution. Magnetically shielded room. Magnetic focaliser. Human magnetic signals.;
【Key words】 Superconducting quantum interference device. Magnetic flux resolution. Magnetically shielded room. Magnetic focaliser. Human magnetic signals.;
【基金】 本课题为山东省教委科研基金资助项目
- 【文献出处】 烟台大学学报(自然科学与工程版) ,Journal of Yantai University(Natural Science and Engineering) , 编辑部邮箱 ,1990年02期
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