Superconducting magnet and magnetic resonance imaging apparatus using the same
    1.
    发明授权
    Superconducting magnet and magnetic resonance imaging apparatus using the same 有权
    超导磁体和使用其的磁共振成像装置

    公开(公告)号:US07880574B2

    公开(公告)日:2011-02-01

    申请号:US11617765

    申请日:2006-12-29

    摘要: A superconducting magnet includes: first and second torus coolant containers substantially symmetrically, vertically arranged to have a space and a symmetrical plane therebetween for storing a coolant. Each of the first and second torus coolant containers includes therein a main coil bobbin with a main coil for generating a measurement magnetic field, a shield coil bobbin with a shield coil for generating a shielding magnetic field for suppressing outside leak of the measurement magnetic field, a plate member vertically reinforced at a plane thereof opposite to a plane thereof facing the symmetrical plane for supporting the shield coil bobbin and the main coil bobbin. The main coil bobbin is further supported by the shield coil bobbin, to cause the main coil to generate the measurement magnetic field having a substantially uniform magnetic field intensity at a middle region of the space. A magnetic resonance imaging apparatus using the superconducting magnet is also disclosed.

    摘要翻译: 超导磁体包括:第一和第二环形冷却剂容器,基本对称地垂直地布置成在其间具有用于存储冷却剂的空间和对称的平面。 第一和第二环面冷却剂容器中的每一个包括具有用于产生测量磁场的主线圈的主线圈架,具有用于产生用于抑制测量磁场的外部泄漏的屏蔽磁场的屏蔽线圈架的屏蔽线圈架, 在与面对对称平面的平面相对的平面上垂直加强的板构件,用于支撑屏蔽线圈架和主线圈架。 主线圈骨架由屏蔽线圈架线圈进一步支撑,使主线圈产生在该空间的中间区域具有大致均匀的磁场强度的测量磁场。 还公开了使用超导磁体的磁共振成像装置。

    SUPERCONDUCTING MAGNET AND MAGNETIC RESONANCE IMAGING APPARATUS USING THE SAME
    2.
    发明申请
    SUPERCONDUCTING MAGNET AND MAGNETIC RESONANCE IMAGING APPARATUS USING THE SAME 有权
    超导磁体和磁共振成像装置使用它

    公开(公告)号:US20070152789A1

    公开(公告)日:2007-07-05

    申请号:US11617765

    申请日:2006-12-29

    IPC分类号: H01F6/00

    摘要: A superconducting magnet includes: first and second torus coolant containers substantially symmetrically, vertically arranged to have a space and a symmetrical plane therebetween for storing a coolant. Each of the first and second torus coolant containers includes therein a main coil bobbin with a main coil for generating a measurement magnetic field, a shield coil bobbin with a shield coil for generating a shielding magnetic field for suppressing outside leak of the measurement magnetic field, a plate member vertically reinforced at a plane thereof opposite to a plane thereof facing the symmetrical plane for supporting the shield coil bobbin and the main coil bobbin. The main coil bobbin is further supported by the shield coil bobbin, to cause the main coil to generate the measurement magnetic field having a substantially uniform magnetic field intensity at a middle region of the space. A magnetic resonance imaging apparatus using the superconducting magnet is also disclosed.

    摘要翻译: 超导磁体包括:第一和第二环形冷却剂容器,基本对称地垂直地布置成在其间具有用于存储冷却剂的空间和对称的平面。 第一和第二环面冷却剂容器中的每一个包括具有用于产生测量磁场的主线圈的主线圈架,具有用于产生用于抑制测量磁场的外部泄漏的屏蔽磁场的屏蔽线圈架的屏蔽线圈架, 在与面对对称平面的平面相对的平面上垂直加强的板构件,用于支撑屏蔽线圈架和主线圈架。 主线圈骨架由屏蔽线圈架线圈进一步支撑,使主线圈产生在该空间的中间区域具有大致均匀的磁场强度的测量磁场。 还公开了使用超导磁体的磁共振成像装置。

    Superconducting magnet abnormality detection and protection apparatus
    3.
    发明授权
    Superconducting magnet abnormality detection and protection apparatus 失效
    超导磁体异常检测和保护装置

    公开(公告)号:US5502613A

    公开(公告)日:1996-03-26

    申请号:US87417

    申请日:1993-07-08

    摘要: A superconducting magnet abnormality detection and protection apparatus is for early and surely detecting abnormality in superconducting coils mounted on a vehicle and protecting the superconducting coils. Magnetic flux detecting devices are mounted inside an outer vessel, which is a vacuum container of a superconducting magnet, so as to be opposite to the superconducting coil. Voltages induced in the magnetic flux detecting devices are detected. Voltage signals are led to a decision device. By monitoring the change of the voltage signals with time in a comparing judgment device, it is determined whether there is an abnormality. If there is an abnormality, an alarm indicator informs of an abnormal state, and a protection device takes protection measures such as interruption of the current of the superconducting magnet. Owing to such configuration, heat does not penetrate from the outside into the superconducting coil via instrumentation lead wires of the magnetic flux detecting devices. Magnitudes of vibration and displacement of the superconducting coil can be detected without contacting the superconducting coil. By always monitoring these signals, it becomes possible to early detect an abnormality in the superconducting coil and protect it.

    摘要翻译: 超导磁体异常检测和保护装置用于早期且可靠地检测安装在车辆上的超导线圈的异常并保护超导线圈。 磁通检测装置安装在作为超导磁体的真空容器的外部容器内,以与超导线圈相对。 检测在磁通检测装置中感应的电压。 电压信号被引导到决策设备。 通过在比较判断装置中监视电压信号随时间的变化,确定是否存在异常。 如果发生异常,报警指示灯会发出异常状态,保护装置会采取保护措施,例如中断超导磁体的电流。 由于这样的结构,热量不会通过磁通检测装置的检测引线从外部渗入超导线圈。 可以在不接触超导线圈的情况下检测超导线圈的振动和位移大小。 通过始终监视这些信号,可以及早检测超导线圈中的异常并进行保护。

    Gas swing type refrigerator
    4.
    发明授权
    Gas swing type refrigerator 失效
    气体摇摆式冰箱

    公开(公告)号:US5152147A

    公开(公告)日:1992-10-06

    申请号:US606725

    申请日:1990-10-31

    IPC分类号: F25B9/00 F25B9/02 F25B9/10

    CPC分类号: F25B9/10 Y10S165/907

    摘要: A refrigerator having a pressurizing device, a coldness generating device for generating coldness by expanding a portion of operating fluid which has been pressurized by the pressurizing device and a fluid passage through which the operating fluid is, via a device to be cooled, again circulated to the pressurizing device after the residual portion of the operating fluid has been cooled by the coldness generating device. A regenerator type heat exchanger is disposed in the fluid passage through which the operating fluid passes, and a switch device switches the flow of the operating fluid in the fluid passage to the reverse direction at a predetermined time period.

    摘要翻译: 具有加压装置的冷藏库,通过将被加压装置加压的工作流体的一部分膨胀的冷却产生装置和通过冷却装置再次循环的工作流体的流体通路再次循环的冷冻发生装置 在工作流体的剩余部分之后的加压装置已经被冷却产生装置冷却。 再生器式热交换器设置在工作流体通过的流体通道中,并且开关装置在预定时间段内将流体通道中的工作流体的流动切换到相反方向。

    Superconducting magnet apparatus, cooling system therefor, and
electromagnetic levitation traveling equipment incorporating the same
    5.
    发明授权
    Superconducting magnet apparatus, cooling system therefor, and electromagnetic levitation traveling equipment incorporating the same 失效
    超级磁铁设备,其冷却系统及其同类产品的电动旅行行驶设备

    公开(公告)号:US5105177A

    公开(公告)日:1992-04-14

    申请号:US444931

    申请日:1989-12-04

    CPC分类号: B60L13/10 B60L2200/26

    摘要: In a superconducting magnet apparatus including one winding of coiled superconductor wire, another winding of coiled superconductor wire, a cooling device for supplying coolant to cooling vessels which contain the respective windings therein and a non-magnetic partition wall interposed between the cooling vessels containing the respective windings to airtightly separate them, with these windings being located at relative positions enabling mutual inductance therebetween, even if quenching occurs in the superconducting magnet apparatus. It is designed to not lose the magnetic repulsive force such that equipment traveling at high speed can be safely transferred at least to the nearest station. In addition, electromagnetic levitation traveling equipment on which the above-described apparatus is installed and a control method therefore is also described.

    摘要翻译: 在包括线圈式超导体线的一个绕组的超导磁体装置中,卷取的超导体线的另一个绕组,用于将冷却剂供给到容纳各自的绕组的冷却容器的冷却装置和插入在包含相应的各个冷却容器的冷却容器之间的非磁性分隔壁 绕组将它们气密地分离,即使在超导磁体装置中发生淬火,这些绕组位于能够在它们之间产生互感的相对位置。 其设计不会失去磁性排斥力,使得高速行驶的设备可以至少安全地转移到最近的车站。 此外,还描述了安装上述装置的电磁悬浮行驶设备和控制方法。

    Superconducting magnet
    6.
    发明授权
    Superconducting magnet 失效
    超导磁体

    公开(公告)号:US5424702A

    公开(公告)日:1995-06-13

    申请号:US335968

    申请日:1994-11-03

    摘要: A beam member which is installed at diametral portion in a ring shape superconducting coil container for supporting hoop stress of the coil, or a portion of radiant heat shield covering the beam member, is partly or entirely composed of electrical insulators or high resistivity materials. In accordance with the above composition, eddy current which is generated in the coil container when the superconducting coil container crosses magnetic field caused by eddy current which is generated in the radiant heat shield when the radiant heat shield crosses strong magnetic field caused by the superconducting coils with relative vibration of the radiant heat shield to the superconducting coil by a dynamic cause can be suppressed. Accordingly, heat generation in the superconducting coil container can be reduced, and consequently, generation of quenching can be prevented.

    摘要翻译: 安装在用于支撑线圈的环向应力的环形超导线圈容器的直径部分或覆盖梁构件的辐射热屏蔽的一部分的梁构件部分或全部由电绝缘体或高电阻率材料构成。 根据上述组成,当辐射热屏蔽穿过由超导线圈引起的强磁场时,当超导线圈容器穿过由辐射热屏蔽中产生的涡流引起的磁场时,在线圈容器中产生的涡流 可以抑制通过动态原因的辐射热屏蔽对超导线圈的相对振动。 因此,可以减少超导线圈容器中的发热,从而可以防止淬火的产生。

    Coil structure and coil container
    7.
    发明授权
    Coil structure and coil container 失效
    线圈结构和线圈容器

    公开(公告)号:US5343180A

    公开(公告)日:1994-08-30

    申请号:US857251

    申请日:1992-03-25

    CPC分类号: H01F6/02 Y10S336/01

    摘要: There is disclosed a coil structure which can be rapidly energized or excited, and which reduces the generation of heat in a coil container by an eddy current due to a dynamic disturbance such as vibration and a magnetic field fluctuation, thereby suppressing the occurrence a quench. The coil container is constituted by a low-resistivity material, and a high-resistivity portion is provided at at least one portion of the coil container in the direction of the periphery of the coil container. The high-resistivity portion is provided at a position where a vibration displacement is small or a magnetic field fluctuation is small. When the coil structure is to be energized or excited, the eddy current produced in the direction of the periphery of the superconducting-coil container can be reduced at the high-resistivity portion, and when the dynamic disturbance develops, the generation of heat by the eddy current is suppressed by the low-resistivity material.

    摘要翻译: 公开了一种线圈结构,其可以被快速激励或激励,并且由于动态干扰(例如振动和磁场波动)而通过涡流减少线圈容器中的热量的产生,从而抑制骤冷的发生。 线圈容器由低电阻率材料构成,并且在线圈容器的至少一部分沿着线圈容器的周边方向设置高电阻部分。 高电阻部分设置在振动位移小或磁场波动小的位置。 当线圈结构被激励或激发时,可以在高电阻部分减小在超导线圈容器的周边方向产生的涡电流,并且当动态干扰发生时,由 涡流被低电阻率材料抑制。