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    • 5. 发明申请
    • ADAPTIVE ELECTROMAGNET FOR HIGH PERFORMANCE MAGNETIC RESONANCE IMAGING
    • 用于高性能磁共振成像的自适应电磁铁
    • US20160313426A1
    • 2016-10-27
    • US14898545
    • 2015-04-27
    • Chad Tyler HARRISAlexander Gyles PANTHERStephen B.E. MCFADYEN
    • Chad Tyler HARRISAlexander Gyles PANTHERStephen B.E. MCFADYEN
    • G01R33/54G01R33/483G01R33/36H01F7/06
    • G01R33/381G01R33/3664G01R33/385G01R33/3875G01R33/4833G01R33/543H01F7/064
    • A method of configuring a conducting grid of elements interconnected at intersecting nodes by switches is described. The method includes: constructing a background grid by connection of centroids of the cell shape of the conducting grid; identifying a subset of elements in the background grid that intersect the smooth pattern of loops; identifying a subset of elements in the conducting grid that intersect the subset of elements in the background grid; the subset of elements in the conducting grid forming a discretized pattern of loops representing the smooth pattern of loops; for each of the discretized pattern of loops identifying current-in and current-out nodes; altering the on-off state of individual switches in accordance with the discretized pattern of loops; opening the switch between each respective pair of current-in and current out nodes; and applying power to the conducting grid via at least one pair of the input and output current nodes such that the current flow through the elements generates the magnetic field profile.
    • 描述了通过交换机在交叉节点处互连的元件的导电栅格的配置方法。 该方法包括:通过连接导电栅格的单元格形状的质心来构建背景网格; 识别背景网格中与循环平滑模式相交的元素的子集; 识别导电网格中与背景网格中的元素子集相交的元素的子集; 导电栅格中的元素的子集形成表示环的平滑图案的环的离散模式; 对于每个离散的模式的环路识别电流输入和电流输出节点; 根据循环的离散模式改变各个开关的开关状态; 在每个相应的一对电流输入和当前输出节点之间打开开关; 以及经由至少一对所述输入和输出电流节点向所述导电栅格施加电力,使得通过所述元件的电流产生所述磁场分布。