发明申请
US20120049848A1 PERMANENT MAGNET ARRANGEMENT WITH SOLID FACING PLATE AND SCANNING MAGNET HEAD
有权
基本信息:
- 专利标题： PERMANENT MAGNET ARRANGEMENT WITH SOLID FACING PLATE AND SCANNING MAGNET HEAD
- 专利标题（中）：永磁电机布置与固定板和扫描磁铁头
- 申请号：US13255205 申请日：2010-04-21
- 公开(公告)号：US20120049848A1 公开(公告)日：2012-03-01
- 发明人： Uri Rapoport
- 申请人： Uri Rapoport
- 申请人地址： IL Shoham
- 专利权人： ASPECT MAGNET TECHNOLOGIES LTD.
- 当前专利权人： ASPECT MAGNET TECHNOLOGIES LTD.
- 当前专利权人地址： IL Shoham
- 国际申请： PCT/IL10/00314 WO 20100421
- 主分类号： G01R33/44
- IPC分类号： G01R33/44
摘要：
The present invention provides a permanent magnet arrangement, comprising: a. a mobile permanent magnet grouping; b. a facing plate constructed from ferromagnetic material; c. a an air gap defined by the spacing between said permanent magnet grouping and said facing plate; d. a yoke of predetermined shape formed from magnetically permeable material, said yoke holding said front surfaces of said magnets in a substantially parallel arrangement relative to said facing plate; e. means for individually moving said permanent magnets in said magnet grouping along an axis generally perpendicular to said facing plate; f. means for moving said permanent magnet grouping in a plane generally parallel to said facing plate; wherein a magnetic field within an active volume located in said air gap between said permanent magnet grouping and said facing plate is provided, said magnetic field sufficiently homogeneous for performance of MRI.
摘要（中）：
本发明提供一种永磁体装置，包括：a。 移动永磁体分组; b。 由铁磁材料构成的面板; C。 由所述永磁体组和所述面对板之间的间隔限定的气隙; d。 由磁导材料形成的预定形状的磁轭，所述磁轭将所述磁体的所述前表面相对于所述相对板基本平行地布置; e。 用于沿着大致垂直于所述相对板的轴线分别移动所述磁体组中的所述永磁体的装置; F。 用于在大致平行于所述相对板的平面中移动所述永磁体组的装置; 其中提供位于所述永磁体组和所述面对板之间的所述气隙中的有效体积内的磁场，所述磁场足够均匀以用于MRI的执行。
公开/授权文献:
IPC结构图谱:
| G | 物理 |
| --G01 | 测量；测试 |
| ----G01R | 测量电变量；测量磁变量（通过转换成电变量对任何种类的物理变量进行测量参见G01类名下的 |
| ------G01R33/00 | 测量磁变量的装置或仪器 |
| --------G01R33/02 | .测量磁场或磁通量的方向或大小 |
| ----------G01R33/44 | ..采用核磁共振（NMR） |