Superconducting magnet coil system with quench protection for the prevention of excessive localized currents
    1.
    发明申请
    Superconducting magnet coil system with quench protection for the prevention of excessive localized currents 有权
    具有淬火保护功能的超导磁体线圈系统,可防止过大的局部电流

    公开(公告)号:US20110065584A1

    公开(公告)日:2011-03-17

    申请号:US12923087

    申请日:2010-09-01

    摘要: A superconducting high-field magnet coil system comprising several radially nested main coil sections (1, 2, 3, 4, 5) which are connected to each other in series in such a fashion that currents of the same direction flow through them during operation, wherein a first main coil section (EHS) is disposed radially further inward than a second main coil section (ZHS) and at least one intermediate main coil section (ZW) is disposed radially between the first and the second main coil section (EHS, ZHS), and with a superconducting switch (11) via which all main coil sections (1, 2, 3, 4, 5) can be superconductingly short-circuited in series, is characterized in that the first main coil section (EHS) and the second main coil section (ZHS) are directly successively series-connected and the first main coil section (EHS) and the second main coil section (ZHS) are bridged by a common quench protection element, which does not bridge the at least one intermediate main coil section (ZW). The magnet coil system realizes quench protection for selectively preventing excess currents in magnet coil areas in which the excessive mechanical force load associated with an excess current would damage the superconductor.

    摘要翻译: 一种超导高场磁体线圈系统,包括若干径向嵌套的主线圈段(1,2,3,4,5),它们以相同方向的电流在操作期间流过它们的方式相互串联连接, 其特征在于,第一主线圈部(EHS)比第二主线圈部(ZHS)更靠内侧配置,并且至少一个中间主线圈部(ZW)沿径向配置在第一和第二主线圈部(EHS,ZHS )和超导开关(11),其中所有主线圈段(1,2,3,4,5)可以串联超导短路,其特征在于,第一主线圈段(EHS)和 第二主线圈段(ZHS)直接连续串联,并且第一主线圈段(EHS)和第二主线圈段(ZHS)由通用的骤冷保护元件桥接,该桥接器不桥接至少一个中间主体 线圈段(ZW)。 电磁线圈系统实现淬火保护,以选择性地防止电磁线圈区域中的过剩电流,其中与过电流相关联的过大的机械力负载将损坏超导体。

    Method for testing a superconductor under increased current load in a series-produced and actively shielded superconducting NMR magnet
    2.
    发明授权
    Method for testing a superconductor under increased current load in a series-produced and actively shielded superconducting NMR magnet 有权
    在串联生产和主动屏蔽的超导NMR磁体中,在增加的电流负载下测试超导体的方法

    公开(公告)号:US07368911B2

    公开(公告)日:2008-05-06

    申请号:US11455765

    申请日:2006-06-20

    IPC分类号: G01V3/00

    CPC分类号: G01R33/1238 G01R33/3815

    摘要: A method for testing a new superconducting wire involves charging an actively shielded magnet coil configuration which comprises a first partial region which can be superconductingly short-circuited using an additional switch. A superconductor to be tested under increased current load is used in this first partial region, thereby preventing superconductor in the second partial region from being subjected to this increased current load. Operating currents are determined for both partial regions that have the desired excess current in the first partial region, with the overall field B0 only slightly differing from the standard operating field of the magnet coil configuration. The operating currents are adjusted through initial charging of the overall magnet coil configuration, thereby taking into consideration the inductive coupling between the partial regions and after closing of the additional switch, by continued charging or discharging in the second partial region only. The method permits inexpensive testing of a superconductor in a series-produced NMR magnet under NMR conditions.

    摘要翻译: 用于测试新的超导线的方法包括对主动屏蔽的磁体线圈配置进行充电,其包括可以使用附加开关超导短路的第一部分区域。 在该第一部分区域中使用在增加的电流负载下测试的超导体,从而防止第二部分区域中的超导体受到该增加的电流负载的影响。 对于在第一部分区域中具有期望的过剩电流的两个部分区域确定工作电流,其中整个场B 0仅与磁体线圈配置的标准工作场稍微不同。 通过对整个磁体线圈配置的初始充电来调整工作电流,从而考虑到部分区域之间和在关闭附加开关之后的电感耦合,仅通过在第二部分区域中继续充电或放电。 该方法允许在NMR条件下在串联产生的NMR磁体中廉价地测试超导体。

    Method for homogenizing a super-conducting NMR magnet
    3.
    发明授权
    Method for homogenizing a super-conducting NMR magnet 失效
    超导核磁体均质化方法

    公开(公告)号:US06972652B2

    公开(公告)日:2005-12-06

    申请号:US10884338

    申请日:2004-07-06

    申请人: Wolfgang Frantz

    发明人: Wolfgang Frantz

    IPC分类号: G01R33/3815 H01F6/00 G01V3/00

    CPC分类号: G01R33/3815 H01F6/006

    摘要: The invention concerns a method for charging a magnet arrangement (20) comprising a first partial region (21) which can be superconductingly short-circuited via an additional switch (23), and a second partial region (22), wherein the two partial regions (21, 22) generate, in an investigational volume (8), gradients of second order having different signs. A magnetic field dependence B* is measured close to the desired operating state of the magnet arrangement (20) and operating currents are determined for each of the two partial regions (21, 22) at which the overall magnetic field B in the volume (8) under investigation is freed from a magnetic field gradient of second order. These operating currents are set thereby taking into consideration the inductive coupling of the partial regions (21, 22) through initially charging of the overall magnet arrangement (20) and, after closing of the additional switch (23), through continuation of charging only in the second partial region (22). The magnetic field homogeneity of the magnet arrangement (20) can thereby be improved in a simple and inexpensive manner.

    摘要翻译: 本发明涉及一种用于对磁体布置(20)进行充电的方法,磁体装置(20)包括可经由附加开关(23)超导短路的第一部分区域(21)和第二部分区域(22),其中两个部分区域 (21,22)在调查量(8)中产生具有不同符号的二阶梯度。 测量靠近磁体装置(20)的期望操作状态的磁场依赖性B *,并确定两个部分区域(21,22)中的每一个的运行电流,在该区域中,体积(8)中的总磁场B )被排除在二阶磁场梯度之外。 这些工作电流被设定,从而考虑到部分区域(21,22)的电感耦合,通过对整个磁体装置(20)进行初始充电,并且在关闭附加开关(23)之后,仅通过继续充电 第二部分区域(22)。 因此,可以以简单且廉价的方式改善磁体排列(20)的磁场均匀性。

    Superconducting magnet coil system with quench protection for the prevention of excessive localized currents
    4.
    发明授权
    Superconducting magnet coil system with quench protection for the prevention of excessive localized currents 有权
    具有淬火保护功能的超导磁体线圈系统,可防止过大的局部电流

    公开(公告)号:US08467841B2

    公开(公告)日:2013-06-18

    申请号:US12923087

    申请日:2010-09-01

    IPC分类号: H01F6/02 H01L39/08 G01R33/035

    摘要: A superconducting high-field magnet coil system comprising several radially nested main coil sections (1, 2, 3, 4, 5) which are connected to each other in series in such a fashion that currents of the same direction flow through them during operation, wherein a first main coil section (EHS) is disposed radially further inward than a second main coil section (ZHS) and at least one intermediate main coil section (ZW) is disposed radially between the first and the second main coil section (EHS, ZHS), and with a superconducting switch (11) via which all main coil sections (1, 2, 3, 4, 5) can be superconductingly short-circuited in series, is characterized in that the first main coil section (EHS) and the second main coil section (ZHS) are directly successively series-connected and the first main coil section (EHS) and the second main coil section (ZHS) are bridged by a common quench protection element, which does not bridge the at least one intermediate main coil section (ZW). The magnet coil system realizes quench protection for selectively preventing excess currents in magnet coil areas in which the excessive mechanical force load associated with an excess current would damage the superconductor.

    摘要翻译: 一种超导高场磁体线圈系统,包括若干径向嵌套的主线圈段(1,2,3,4,5),它们以相同方向的电流在操作期间流过它们的方式相互串联连接, 其特征在于,第一主线圈部(EHS)比第二主线圈部(ZHS)更靠内侧配置,并且至少一个中间主线圈部(ZW)沿径向配置在第一和第二主线圈部(EHS,ZHS )和超导开关(11),其中所有主线圈段(1,2,3,4,5)可以串联超导短路,其特征在于,第一主线圈段(EHS)和 第二主线圈段(ZHS)直接连续串联,并且第一主线圈段(EHS)和第二主线圈段(ZHS)由通用的骤冷保护元件桥接,该桥接器不桥接至少一个中间主体 线圈段(ZW)。 电磁线圈系统实现淬火保护,以选择性地防止电磁线圈区域中的过剩电流,其中与过电流相关联的过大的机械力负载将损坏超导体。

    METHOD FOR TESTING A SUPERCONDUCTOR UNDER INCREASED CURRENT LOAD IN A SERIES-PRODUCED AND ACTIVELY SHIELDED SUPERCONDUCTING NMR MAGNET
    5.
    发明申请
    METHOD FOR TESTING A SUPERCONDUCTOR UNDER INCREASED CURRENT LOAD IN A SERIES-PRODUCED AND ACTIVELY SHIELDED SUPERCONDUCTING NMR MAGNET 有权
    在系列生产和动态屏蔽超导核磁体中测试超级电容器在增加的电流负载下的方法

    公开(公告)号:US20080084207A1

    公开(公告)日:2008-04-10

    申请号:US11455765

    申请日:2006-06-20

    IPC分类号: G01V3/00

    CPC分类号: G01R33/1238 G01R33/3815

    摘要: A method for testing a new superconducting wire involves charging an actively shielded magnet coil configuration which comprises a first partial region which can be superconductingly short-circuited using an additional switch. A superconductor to be tested under increased current load is used in this first partial region, thereby preventing superconductor in the second partial region from being subjected to this increased current load. Operating currents are determined for both partial regions that have the desired excess current in the first partial region, with the overall field B0 only slightly differing from the standard operating field of the magnet coil configuration. The operating currents are adjusted through initial charging of the overall magnet coil configuration, thereby taking into consideration the inductive coupling between the partial regions and after closing of the additional switch, by continued charging or discharging in the second partial region only. The method permits inexpensive testing of a superconductor in a series-produced NMR magnet under NMR conditions.

    摘要翻译: 用于测试新的超导线的方法包括对主动屏蔽的磁体线圈配置进行充电,其包括可以使用附加开关超导短路的第一部分区域。 在该第一部分区域中使用在增加的电流负载下测试的超导体,从而防止第二部分区域中的超导体受到该增加的电流负载的影响。 对于在第一部分区域中具有期望的过剩电流的两个部分区域确定工作电流,其中整个场B 0仅与磁体线圈配置的标准工作场稍微不同。 通过对整个磁体线圈配置的初始充电来调整工作电流,从而考虑到部分区域之间和在关闭附加开关之后的电感耦合,仅通过在第二部分区域中继续充电或放电。 该方法允许在NMR条件下在串联产生的NMR磁体中廉价地测试超导体。

    Superconducting magnet coil system with quench protection
    6.
    发明授权
    Superconducting magnet coil system with quench protection 有权
    超导磁体线圈系统具有淬火保护功能

    公开(公告)号:US07330341B2

    公开(公告)日:2008-02-12

    申请号:US11540572

    申请日:2006-10-02

    申请人: Wolfgang Frantz

    发明人: Wolfgang Frantz

    IPC分类号: H01F6/06

    摘要: A superconducting magnet coil system comprising a main field coil which is formed from series-connected sections, wherein the conductors of the radially inner sections contain a first superconducting material and have first electric voltage insulation, the conductors of the radially outer sections comprise a second superconducting material and are provided with second electric voltage insulation, wherein the first superconducting material has a higher critical magnetic field than the second superconducting material, and the first voltage insulation has a smaller dielectric strength than the second voltage insulation, and a shielding coil which is connected in series with the main field coil, radially surrounds the main field coil, and comprises conductors of the second superconducting material having the second electric voltage insulation, wherein the main field coil and the shielding coil are superconductingly short-circuited during operation and are protected through several ohmic resistances and/or diodes in case of a quench, is characterized in that the inner sections are protected by at least one ohmic resistance and the outer sections are protected, together with the shielding coil, by one single ohmic resistance.

    摘要翻译: 一种超导磁体线圈系统,包括由串联连接部分形成的主场线圈,其中径向内部部分的导体包含第一超导材料并且具有第一电压绝缘,所述径向外部部分的导体包括第二超导体 并且具有第二电压绝缘,其中所述第一超导材料具有比所述第二超导材料更高的临界磁场,并且所述第一电压绝缘体具有比所述第二电压绝缘体更小的介电强度,以及连接的屏蔽线圈 与主励磁线圈串联,径向围绕主励磁线圈,并且包括具有第二电压绝缘的第二超导材料的导体,其中主励磁线圈和屏蔽线圈在操作期间超导短路并通过 几个欧姆 在骤冷的情况下的阻抗和/或二极管的特征在于,内部部分被至少一个欧姆电阻保护,并且外部部分与屏蔽线圈一起被一个单一的欧姆电阻保护。

    Method for fringe field compensation of an actively shielded superconducting NMR magnet
    7.
    发明授权
    Method for fringe field compensation of an actively shielded superconducting NMR magnet 失效
    主动屏蔽超导NMR磁体的边缘场补偿方法

    公开(公告)号:US06987436B2

    公开(公告)日:2006-01-17

    申请号:US10926978

    申请日:2004-08-27

    申请人: Wolfgang Frantz

    发明人: Wolfgang Frantz

    IPC分类号: G01R33/421

    CPC分类号: H01F6/006 G01R33/3815

    摘要: The invention concerns a method for charging an actively shielded magnet coil arrangement (20) comprising a first partial region (21) which can be superconductingly short-circuited using an additional switch (23), and a second partial region (22), wherein the two partial regions (21, 22) generate dipole moments of different signs. The magnetic fringe field B* is measured close to the desired operating state of the arrangement (20) and operating currents are determined for each of the two partial regions (21, 22) at which the overall magnetic field B is free from an additional dipole moment caused by production tolerances to permit setting of the theoretically optimum fringe field, irrespective of production tolerances. These operating currents are adjusted taking into consideration the inductive coupling between the partial regions (21, 22) through initially charging the entire magnet coil arrangement (20) and, after closing the additional switch (23), through continuation of the charging process in the second partial region (22) only. This eliminates deviations, which are caused by production tolerances, from the optimum theoretical fringe field of the arrangement (20) in a simple and inexpensive manner.

    摘要翻译: 本发明涉及一种用于对主动屏蔽的磁体线圈装置(20)充电的方法,该装置包括可以使用附加开关(23)超导短路的第一部分区域(21)和第二部分区域(22),其中 两个部分区域(21,22)产生不同符号的偶极矩。 测量磁性边缘场B *接近装置(20)的期望的运行状态,并且确定两个部分区域(21,22)中的每一个的运行电流,在这两个部分区域(21,22)中,整个磁场B没有额外的偶极子 由制造公差引起的力矩,允许理论上最优条纹场的设定,而不考虑生产公差。 考虑到部分区域(21,22)之间的电感耦合,通过对整个电磁线圈装置(20)进行初始充电并且在关闭附加开关(23)之后,通过继续充电过程来调节这些工作电流 第二部分区域(22)。 这样可以以简单且廉价的方式从装置(20)的最佳理论条纹区域中消除由生产公差引起的偏差。

    NMR magnet coil system with separate superconducting short-circuited regions for drift compensation as well as method for operation thereof
    8.
    发明授权
    NMR magnet coil system with separate superconducting short-circuited regions for drift compensation as well as method for operation thereof 有权
    具有分离的用于漂移补偿的超导短路区域的NMR磁体线圈系统及其操作方法

    公开(公告)号:US06777938B2

    公开(公告)日:2004-08-17

    申请号:US10282040

    申请日:2002-10-29

    IPC分类号: G01V300

    CPC分类号: G01R33/3815

    摘要: An NMR magnet coil system, comprising superconducting conductor structures, with an inductance L0 for generating a homogeneous magnetic field B0 through which an operating current I0 flows in the persistent mode, and wherein further superconducting switches (S1, S2, . . . Sn−1) are each provided between two points (P1, Q1), (P2, Q2), . . . , (Pn−1, Qn−1) of the winding of the magnet coil system which, during operation, separately superconductingly short-circuit one or more disjoint partial regions (1, 2, . . . , n−1) with the inductances L1, L2, . . . , Ln−1 to generate magnetic field contributions B1, B2, . . . , Bn−1 to the homogeneous magnetic field B0, is characterized in that the following is valid: α = &LeftBracketingBar; L 0 ⁢ ∑ j = 1 n ⁢ ( L - 1 ) jn ⁢ B j B 0 &RightBracketingBar; ≤ 0.8 wherein Bn is the magnetic field contribution to the homogeneous magnetic field B0 of the residual region (n) of the magnet coil system, reduced by the separately superconductingly short-circuited partial regions (1, 2, . . . , n−1) and having the inductance Ln, wherein (L−1)jn is the entry of the jth line and nth column of the inverse of the entire inductance matrix of the magnet coil system and wherein L0 is the total magnetic inductance (sum of all entries of the inductance matrix). This permits substantial compensation of magnetic field drift caused by a residual resistance in a winding of the superconducting conductor structures of the coil system with little technical effort and without using a separate drift compensation coil, even in existing coil systems.

    摘要翻译: 一种包括超导导体结构的NMR磁体线圈系统,具有用于产生均匀磁场B0的电感L0,工作电流I0以持续模式流过,并且其中进一步的超导开关(S1,S2,...,Sn-1 )分别设置在两点(P1,Q1),(P2,Q2)之间。 。 。 ,(Pn-1,Qn-1),其在操作期间单独地超导地将一个或多个不相交的部分区域(1,2,...,n-1)与电感 L1,L2,。 。 。 ,Ln-1以产生磁场贡献B1,B2。 。 。 ,Bn-1到均匀磁场B0的特征在于以下有效:其中Bn是对磁体线圈系统的剩余区域(n)的均匀磁场B0的磁场贡献,分别减小 具有电感Ln的超导短路部分区域(1,2,...,n-1),其中(L -1)jn是整个的逆的第j行和第n列的入口 电感线圈系统的电感矩阵,其中L0是总磁感应(电感矩阵的所有条目之和)。 这允许对具有很少技术努力的线圈系统的超导导体结构的绕组中的残余电阻引起的磁场漂移的大量补偿,并且即使在现有的线圈系统中也不使用单独的漂移补偿线圈。

    SUPERCONDUCTING MAGNET COIL SYSTEM WITH QUENCH PROTECTION
    9.
    发明申请
    SUPERCONDUCTING MAGNET COIL SYSTEM WITH QUENCH PROTECTION 有权
    超导保护磁铁线圈系统

    公开(公告)号:US20080007375A1

    公开(公告)日:2008-01-10

    申请号:US11540572

    申请日:2006-10-02

    申请人: Wolfgang Frantz

    发明人: Wolfgang Frantz

    IPC分类号: H01F6/00

    摘要: A superconducting magnet coil system comprising a main field coil which is formed from series-connected sections, wherein the conductors of the radially inner sections contain a first superconducting material and have first electric voltage insulation, the conductors of the radially outer sections comprise a second superconducting material and are provided with second electric voltage insulation, wherein the first superconducting material has a higher critical magnetic field than the second superconducting material, and the first voltage insulation has a smaller dielectric strength than the second voltage insulation, and a shielding coil which is connected in series with the main field coil, radially surrounds the main field coil, and comprises conductors of the second superconducting material having the second electric voltage insulation, wherein the main field coil and the shielding coil are superconductingly short-circuited during operation and are protected through several ohmic resistances and/or diodes in case of a quench, is characterized in that the inner sections are protected by at least one ohmic resistance and the outer sections are protected, together with the shielding coil, by one single ohmic resistance.

    摘要翻译: 一种超导磁体线圈系统,包括由串联连接部分形成的主场线圈,其中径向内部部分的导体包含第一超导材料并且具有第一电压绝缘,所述径向外部部分的导体包括第二超导体 并且具有第二电压绝缘,其中所述第一超导材料具有比所述第二超导材料更高的临界磁场,并且所述第一电压绝缘体具有比所述第二电压绝缘体更小的介电强度,以及连接的屏蔽线圈 与主励磁线圈串联,径向围绕主励磁线圈,并且包括具有第二电压绝缘的第二超导材料的导体,其中主励磁线圈和屏蔽线圈在操作期间超导短路并通过 几个欧姆 在骤冷的情况下的阻抗和/或二极管的特征在于,内部部分被至少一个欧姆电阻保护,并且外部部分与屏蔽线圈一起被一个单一的欧姆电阻保护。

    METHOD FOR FRINGE FIELD COMPENSATION OF AN ACTIVELY SHIELDED SUPERCONDUCTING NMR MAGNET
    10.
    发明申请
    METHOD FOR FRINGE FIELD COMPENSATION OF AN ACTIVELY SHIELDED SUPERCONDUCTING NMR MAGNET 失效
    用于动态屏蔽超导NMR磁体的场效应补偿方法

    公开(公告)号:US20050068033A1

    公开(公告)日:2005-03-31

    申请号:US10926978

    申请日:2004-08-27

    申请人: Wolfgang Frantz

    发明人: Wolfgang Frantz

    IPC分类号: G01R33/3815 H01F6/00 H01F1/00

    CPC分类号: H01F6/006 G01R33/3815

    摘要: The invention concerns a method for charging an actively shielded magnet coil arrangement (20) comprising a first partial region (21) which can be superconductingly short-circuited using an additional switch (23), and a second partial region (22), wherein the two partial regions (21, 22) generate dipole moments of different signs. The magnetic fringe field B* is measured close to the desired operating state of the arrangement (20) and operating currents are determined for each of the two partial regions (21, 22) at which the overall magnetic field B is free from an additional dipole moment caused by production tolerances to permit setting of the theoretically optimum fringe field, irrespective of production tolerances. These operating currents are adjusted taking into consideration the inductive coupling between the partial regions (21, 22) through initially charging the entire magnet coil arrangement (20) and, after closing the additional switch (23), through continuation of the charging process in the second partial region (22) only. This eliminates deviations, which are caused by production tolerances, from the optimum theoretical fringe field of the arrangement (20) in a simple and inexpensive manner.

    摘要翻译: 本发明涉及一种用于对主动屏蔽的磁体线圈装置(20)充电的方法,该装置包括可以使用附加开关(23)超导短路的第一部分区域(21)和第二部分区域(22),其中 两个部分区域(21,22)产生不同符号的偶极矩。 在靠近装置(20)的期望的工作状态测量磁性边缘场B',并且确定两个部分区域(21,22)中的每一个的操作电流,在该区域中,总磁场B不在 由制造公差引起的附加偶极矩,以允许理论上最优条纹场的设定,而不考虑生产公差。 考虑到部分区域(21,22)之间的电感耦合,通过对整个电磁线圈装置(20)进行初始充电并且在关闭附加开关(23)之后,通过继续充电过程来调节这些工作电流 第二部分区域(22)。 这样可以以简单且廉价的方式从装置(20)的最佳理论条纹区域中消除由生产公差引起的偏差。