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97 条记录 (耗时 0.018 秒)

    Balanced quench protection circuit
    1.
    发明授权
    Balanced quench protection circuit 有权
    平衡淬火保护电路

    公开(公告)号：US06717781B2

    公开(公告)日：2004-04-06

    申请号：US09682589

    申请日：2001-09-25

    申请人： Minfeng Xu ,  Xianrui Huang ,  Bu-Xin Xu ,  Jinhua Huang

    发明人： Minfeng Xu ,  Xianrui Huang ,  Bu-Xin Xu ,  Jinhua Huang

    IPC分类号： H02H700

    CPC分类号： H01F6/02 ,  H01F6/008 ,  H02H7/001 ,  Y02E40/68

    摘要： A superconducting magnet electrical circuit is provided for quench protection. A superconducting coil assemblage is provided including a plurality of spatially separated main and secondary magnet coil portions. The main magnet coil portions are connected in series to form at least one main coil series circuit. The secondary magnet coil portions are also connected in a series to form at least one secondary coil series circuit. At least one temperature limiting circuit is also provided. The temperature limiting circuit may be a quench heater circuit or a quench resistor circuit. The temperature limiting circuit has a plurality of quench heaters or a plurality of quench resistors connected with the superconducting coil assemblage. A superconductive switch is coupled with the superconducting coil assemblage.

    摘要翻译： 提供超导磁体电路用于淬火保护。 提供了包括多个空间分离的主和次级磁体线圈部分的超导线圈组件。 主电磁线圈部分串联连接以形成至少一个主线圈串联电路。 次级电磁线圈部分也被串联连接以形成至少一个次级线圈串联电路。 还提供至少一个温度限制电路。 温度限制电路可以是淬火加热器电路或淬火电阻电路。 温度限制电路具有与超导线圈组合件连接的多个骤冷加热器或多个骤冷电阻器。 超导开关与超导线圈组合连接。

    HEAT PIPE COOLED SUERCONDUCTING MAGNETS WITH CERAMIC COIL FORMS
    5.
    发明申请
    HEAT PIPE COOLED SUERCONDUCTING MAGNETS WITH CERAMIC COIL FORMS 有权
    热管冷却带陶瓷线圈的磁铁

    公开(公告)号：US20100277170A1

    公开(公告)日：2010-11-04

    申请号：US12268205

    申请日：2008-11-10

    申请人： Xianrui Huang ,  Bulent Aksel ,  Kathleen M. Amm ,  Evangelos T. Laskaris ,  Ernst W. Stautner ,  Paul S. Thompson ,  Anbo Wu ,  Minfeng Xu ,  Yan Zhao

    发明人： Xianrui Huang ,  Bulent Aksel ,  Kathleen M. Amm ,  Evangelos T. Laskaris ,  Ernst W. Stautner ,  Paul S. Thompson ,  Anbo Wu ,  Minfeng Xu ,  Yan Zhao

    IPC分类号： G01R33/48 ,  G01R33/44

    CPC分类号： G01R33/3815 ,  G01R33/3802 ,  G01R33/3804

    摘要： A system and method for a magnetic resonance (MR) imaging system includes a coil form, at least one magnet positioned about the coil form and configured to generate a magnetic field, at least one gradient coil for manipulating the magnetic field generated by the at least one magnet by way of a gradient field, and a heat pipe thermally connected to the coil form and having a cryogen therein. The MR imaging system also includes a cryocooler connected to the heat pipe to cool the heat pipe and the cryogen, wherein the coil form is comprised of a thermally conductive material in which eddy currents are substantially reduced during operation of the at least one gradient coil. The present invention has been described in terms of the preferred embodiment, and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.

    摘要翻译： 用于磁共振（MR）成像系统的系统和方法包括线圈形式，围绕线圈形状定位并被配置为产生磁场的至少一个磁体，至少一个梯度线圈，用于操纵由至少一个 通过梯度场的一个磁体，以及热连接到线圈形式并且在其中具有冷冻剂的热管。 MR成像系统还包括连接到热管以冷却热管和冷冻剂的低温冷却器，其中线圈形式由导热材料组成，其中涡流在至少一个梯度线圈的操作期间显着减小。 已经根据优选实施例描述了本发明，并且认识到除了明确说明的那些之外的等同物，替代方案和修改是可能的并且在所附权利要求的范围内。

    METHOD AND APPARATUS FOR ACTIVELY CONTROLLING QUENCH PROTECTION OF A SUPERCONDUCTING MAGNET
    6.
    发明申请
    METHOD AND APPARATUS FOR ACTIVELY CONTROLLING QUENCH PROTECTION OF A SUPERCONDUCTING MAGNET 有权
    用于动态控制超级磁铁猝死保护的方法和装置

    公开(公告)号：US20100013584A1

    公开(公告)日：2010-01-21

    申请号：US12567846

    申请日：2009-09-28

    申请人： Xianrui Huang ,  Minfeng Xu

    发明人： Xianrui Huang ,  Minfeng Xu

    IPC分类号： H01F6/02

    CPC分类号： G01R33/3815 ,  G01R33/288 ,  H01F6/02

    摘要： A method and apparatus for actively controlling quench protection of a superconducting magnet includes a magnetic resonance imaging (MRI) system and a computer readable storage medium having stored thereon a computer program comprising instructions which when executed by a computer cause the computer to detect a quench condition of the superconducting magnet. The instructions also cause the computer to actively control a quench protection system of the superconducting magnet in response to the detected quench condition.

    摘要翻译： 用于主动控制超导磁体的淬火保护的方法和装置包括磁共振成像（MRI）系统和其上存储有计算机程序的计算机可读存储介质，所述计算机程序包括当计算机执行时使计算机检测淬火条件的指令 的超导磁体。 指令还使得计算机响应于检测到的淬火条件主动地控制超导磁体的淬火保护系统。

    Method and apparatus for actively controlling quench protection of a superconducting magnet
    7.
    发明授权
    Method and apparatus for actively controlling quench protection of a superconducting magnet 有权
    主动控制超导磁体淬火保护的方法和装置

    公开(公告)号：US07615998B2

    公开(公告)日：2009-11-10

    申请号：US11621537

    申请日：2007-01-09

    申请人： Xianrui Huang ,  Minfeng Xu

    发明人： Xianrui Huang ,  Minfeng Xu

    IPC分类号： G01V3/00

    CPC分类号： G01R33/3815 ,  G01R33/288 ,  H01F6/02

    摘要： A method and apparatus for actively controlling quench protection of a superconducting magnet includes a magnetic resonance imaging (MRI) system and a computer readable storage medium having stored thereon a computer program comprising instructions which when executed by a computer cause the computer to detect a quench condition of the superconducting magnet. The instructions also cause the computer to actively control a quench protection system of the superconducting magnet in response to the detected quench condition.

    摘要翻译： 用于主动控制超导磁体的淬火保护的方法和装置包括磁共振成像（MRI）系统和其上存储有计算机程序的计算机可读存储介质，所述计算机程序包括当计算机执行时使计算机检测淬火条件的指令 的超导磁体。 指令还使得计算机响应于检测到的淬火条件主动地控制超导磁体的淬火保护系统。

    Apparatus and method for coupling coils in a superconducting magnet
    8.
    发明授权
    Apparatus and method for coupling coils in a superconducting magnet 有权
    用于在超导磁体中耦合线圈的装置和方法

    公开(公告)号：US07477055B1

    公开(公告)日：2009-01-13

    申请号：US11842694

    申请日：2007-08-21

    申请人： Xianrui Huang ,  Paul S. Thompson ,  Minfeng Xu

    发明人： Xianrui Huang ,  Paul S. Thompson ,  Minfeng Xu

    IPC分类号： G01V3/00

    CPC分类号： G01R33/3815

    摘要： A system and method for connecting superconducting magnet coils made up of coil segments to allow an integrated winding concept. The integrated winding concept can include serially connecting coil segments of coil pairs in an alternating pattern, which causes coil pairs to be electrically symmetric. Symmetric coil pairs can eliminate or significantly reduce the currents in magnet coils induced by gradient or other pulses, produce a homogenous field, and reduce the accumulated voltages in the coils due to gradient pulsing.

    摘要翻译： 用于连接由线圈段组成的超导磁体线圈以允许集成绕组概念的系统和方法。 集成绕组概念可以包括以交替模式串联线圈对的线圈段，这使线圈对电对称。 对称线圈对可以消除或显着减少由梯度或其他脉冲引起的磁体线圈中的电流，产生均匀的场，并且由于梯度脉冲而减少线圈中的累积电压。

    W-shaped superconducting electromagnetic system for magnetic levitation vehicles
    9.
    发明授权
    W-shaped superconducting electromagnetic system for magnetic levitation vehicles 失效
    用于磁悬浮车辆的W形超导电磁系统

    公开(公告)号：US5528210A

    公开(公告)日：1996-06-18

    申请号：US339263

    申请日：1994-11-10

    申请人： Xianrui Huang ,  Joseph A. Waynert ,  Charles M. Weber ,  Minfeng Xu

    发明人： Xianrui Huang ,  Joseph A. Waynert ,  Charles M. Weber ,  Minfeng Xu

    IPC分类号： B60L13/04 ,  H01F6/00 ,  B60L13/00

    CPC分类号： B60L13/04 ,  B60L2200/26

    摘要： An electromagnetic system for a magnetic levitation vehicle comprises a "W" shaped magnet core having a center pole wound by a superconducting coil and side poles on opposite sides of the center pole, each wound by an ambient temperature coil. Quasi-dc power is supplied to the central superconducting coil for levitation of the vehicle with respect to a rail along which the vehicle is meant to move. The ambient temperature coils are connected in series to each and other and powered with ac power for trimming and controlling the gap between the magnet and the rail.

    摘要翻译： 用于磁悬浮车辆的电磁系统包括：具有由超导线圈缠绕的中心极的“W”形磁芯和在中心极的相对侧上的侧极，每个由环境温度线圈缠绕。 将准直流电力提供给中央超导线圈，用于相对于车辆意图移动的轨道悬挂车辆。 环境温度线圈串联连接，并以交流电源供电，用于修整和控制磁体和导轨之间的间隙。