发明授权
- 专利标题: Superconducting magnet correction coil adjustment mechanism
- 专利标题(中): 超导磁体校正线圈调整机构
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申请号: US216618申请日: 1998-12-18
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公开(公告)号: US6014069A公开(公告)日: 2000-01-11
- 发明人: Timothy John Havens , Xianrui Huang , Minfeng Xu
- 申请人: Timothy John Havens , Xianrui Huang , Minfeng Xu
- 专利权人: Havens; Timothy John,Huang; Xianrui,Xu; Minfeng
- 当前专利权人: Havens; Timothy John,Huang; Xianrui,Xu; Minfeng
- 主分类号: G01R33/3875
- IPC分类号: G01R33/3875 ; H01F1/00
摘要:
A correction coil current adjustment circuit for a superconducting magnet to selectively switch various coils in circuit with a power source to provide the desired superconducting current flow and magnetic field homogeneity for magnetic resonance imaging eliminating the need for some of the mechanical leads which extend from the exterior of the magnet to the interior of the cryogen vessel minimizing thermal leak paths and including simplified switching of the various main and correction magnet coils to provide the desired current flow. Inductive coupling from outside the magnet to induce correction coil current flow eliminates additional mechanical leads.
公开/授权文献
- US5646003A Preimplantation factor 公开/授权日:1997-07-08