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    • 1. 发明申请
    • TARGETED TRAVELLING WAVE MRI
    • 目标旅行波形MRI
    • US20130069647A1
    • 2013-03-21
    • US13603041
    • 2012-09-04
    • Reiner UmathumStefan AltMarco MuellerMichael Bock
    • Reiner UmathumStefan AltMarco MuellerMichael Bock
    • G01R33/48
    • G01R33/345
    • A travelling wave MRI apparatus is provided that includes a coaxial waveguide arrangement, a cavity for placing therein a subject or object to be imaged, a device for applying a static magnetic field, a device for applying gradient magnetic fields, a device for coupling in electromagnetic excitation pulses having a predetermined operating frequency to induce nuclear magnetic resonance within the subject or object, and a device for detecting an electromagnetic signal resulting from the magnetic resonance. The coaxial waveguide arrangement placed in the cavity of the apparatus comprises a first and a second conductive member arranged in a coaxial arrangement with respect to one another, wherein the first conductive member is formed by a continuous tubular outer member and the second conductive member is formed by a tubular shaped inner member, which is divided in axial direction defining an investigation area.
    • 提供了一种行波MRI装置,其包括同轴波导装置,用于放置待成像对象或物体的空腔,用于施加静磁场的装置,用于施加梯度磁场的装置,用于电磁耦合的装置 具有预定工作频率以激励对象或物体内的核磁共振的激励脉冲,以及用于检测由磁共振产生的电磁信号的装置。 布置在设备的空腔中的同轴波导装置包括相对于彼此布置成同轴布置的第一和第二导电构件,其中第一导电构件由连续的管状外部构件形成,并且形成第二导电构件 通过管状的内部构件,其在轴向上被划分以限定调查区域。
    • 6. 发明授权
    • Surge suppressor with increased surge current capability
    • 具有浪涌电流能力增加的浪涌抑制器
    • US07170728B2
    • 2007-01-30
    • US11028493
    • 2005-01-03
    • Marco Mueller
    • Marco Mueller
    • H02H9/00H02H3/22H02H1/00H02H1/04H02H9/06H01C7/12
    • H01T4/08H01Q1/50
    • A surge suppressor configured to receive signals from a coaxial line having a signal carrying inner conductor and a grounded outer conductor. The surge suppressor includes an inner conductor exhibiting capacitance and configured to connect to the coaxial line inner conductor, an outer conductor configured to connect to the coaxial line outer conductor and to ground, and an inductor formed of a wire encapsulated in an encapsulating material electrically coupling the inner conductor and the outer conductor. RF signals in the surge suppressor's operating bandwidth pass through the surge suppressor relatively unimpeded while electrical surges will be diverted through the inductor to the outer conductor, and therefore to ground, and possible residual pulses will be blocked from passing through the surge suppressor by the capacitance.
    • 浪涌抑制器被配置为从具有承载内导体和接地外导体的信号的同轴线接收信号。 浪涌抑制器包括呈现电容并被配置为连接到同轴线内导体的内导体,被配置为连接到同轴线外导体和接地的外导体,以及由封装在封装材料中的电线形成的电感器,电耦合 内导体和外导体。 浪涌抑制器的工作带宽中的RF信号相对无阻碍地通过浪涌抑制器,同时电涌将通过电感器转移到外部导体,从而接地,并且可能的残余脉冲将被阻塞以通过电容抑制器的电容 。
    • 7. 发明申请
    • Surge suppressor with increased surge current capability
    • 具有浪涌电流能力增加的浪涌抑制器
    • US20060146458A1
    • 2006-07-06
    • US11028493
    • 2005-01-03
    • Marco Mueller
    • Marco Mueller
    • H02H9/00
    • H01T4/08H01Q1/50
    • A surge suppressor configured to receive signals from a coaxial line having a signal carrying inner conductor and a grounded outer conductor. The surge suppressor includes an inner conductor exhibiting capacitance and configured to connect to the coaxial line inner conductor, an outer conductor configured to connect to the coaxial line outer conductor and to ground, and an inductor formed of a wire encapsulated in an encapsulating material electrically coupling the inner conductor and the outer conductor. RF signals in the surge suppressor's operating bandwidth pass through the surge suppressor relatively unimpeded while electrical surges will be diverted through the inductor to the outer conductor, and therefore to ground, and possible residual pulses will be blocked from passing through the surge suppressor by the capacitance.
    • 浪涌抑制器被配置为从具有承载内导体和接地外导体的信号的同轴线接收信号。 浪涌抑制器包括呈现电容并被配置为连接到同轴线内导体的内导体,被配置为连接到同轴线外导体和接地的外导体,以及由封装在封装材料中的电线形成的电感器,电耦合 内导体和外导体。 浪涌抑制器的工作带宽中的RF信号相对无阻碍地通过浪涌抑制器,同时电涌将通过电感器转移到外部导体,从而接地,并且可能的残余脉冲将被阻塞以通过电容抑制器的电容 。