公开(公告)号：US20100066357A1

公开(公告)日：2010-03-18

申请号：US12560303

申请日：2009-09-15

申请人： Fred M. Mueller ,  Jens Haenisch

发明人： Fred M. Mueller ,  Jens Haenisch

IPC分类号： G01R33/02

CPC分类号： G01R33/1246

摘要： The transverse critical-current uniformity in a superconducting tape was determined using a magnetic knife apparatus. A critical current Ic distribution and transverse critical current density Jc distribution in YBCO coated conductors was measured nondestructively with high resolution using a magnetic knife apparatus. The method utilizes the strong depression of Jc in applied magnetic fields. A narrow region of low, including zero, magnetic field in a surrounding higher field is moved transversely across a sample of coated conductor. This reveals the critical current density distribution. A Fourier series inversion process was used to determine the transverse Jc distribution in the sample.

摘要翻译： 使用磁刀装置测定超导带中的横向临界电流均匀性。 使用磁刀设备以高分辨率非破坏性地测量YBCO涂层导体中的临界电流Ic分布和横向临界电流密度Jc分布。 该方法利用了施加磁场中Jc的强抑制。 在周围的较高场中的包括零磁场的窄区域横向移动穿过涂覆导体的样品。 这揭示了临界电流密度分布。 使用傅里叶级数反演方法确定样品中的横向Jc分布。

公开(公告)号：US08228055B2

公开(公告)日：2012-07-24

申请号：US12560303

申请日：2009-09-15

申请人： Fred M. Mueller ,  Jens Haenisch

发明人： Fred M. Mueller ,  Jens Haenisch

IPC分类号： G01P3/48

CPC分类号： G01R33/1246

摘要： The transverse critical-current uniformity in a superconducting tape was determined using a magnetic knife apparatus. A critical current Ic distribution and transverse critical current density Jc distribution in YBCO coated conductors was measured nondestructively with high resolution using a magnetic knife apparatus. The method utilizes the strong depression of Jc in applied magnetic fields. A narrow region of low, including zero, magnetic field in a surrounding higher field is moved transversely across a sample of coated conductor. This reveals the critical current density distribution. A Fourier series inversion process was used to determine the transverse Jc distribution in the sample.

摘要翻译： 使用磁刀装置测定超导带中的横向临界电流均匀性。 使用磁刀设备以高分辨率非破坏性地测量YBCO涂层导体中的临界电流Ic分布和横向临界电流密度Jc分布。 该方法利用了施加磁场中Jc的强抑制。 在周围的较高场中的包括零磁场的窄区域横向移动穿过涂覆导体的样品。 这显示了临界电流密度分布。 使用傅里叶级数反演方法确定样品中的横向Jc分布。

公开(公告)号：US07134342B1

公开(公告)日：2006-11-14

申请号：US10932654

申请日：2004-08-31

申请人： Fred M. Mueller ,  Lawrence Bronisz ,  Holger Grube ,  David C. Nelson ,  Jonathan L. Mace

发明人： Fred M. Mueller ,  Lawrence Bronisz ,  Holger Grube ,  David C. Nelson ,  Jonathan L. Mace

IPC分类号： G01P15/105 ,  G01P15/08

CPC分类号： G01V1/181

摘要： A magnetic infrasound sensor is produced by constraining a permanent magnet inside a magnetic potential well above the surface of superconducting material. The magnetic infrasound sensor measures the position or movement of the permanent magnet within the magnetic potential well, and interprets the measurements. Infrasound sources can be located and characterized by combining the measurements from one or more infrasound sensors. The magnetic infrasound sensor can be tuned to match infrasound source types, resulting in better signal-to-noise ratio. The present invention can operate in frequency modulation mode to improve sensitivity and signal-to-noise ratio. In an alternate construction, the superconductor can be levitated over a magnet or magnets. The system can also be driven, so that time resolved perturbations are sensed, resulting in a frequency modulation version with improved sensitivity and signal-to-noise ratio.

摘要翻译： 通过在超导材料表面上方的磁势阱内约束永磁体来产生磁次声传感器。 磁次声传感器测量永磁体在磁势阱内的位置或运动，并解释测量结果。 次声源可以通过组合来自一个或多个次声传感器的测量结果来定位和表征。 可以调节磁次声传感器以匹配次声源类型，从而获得更好的信噪比。 本发明可以在频率调制模式下工作，以提高灵敏度和信噪比。 在替代结构中，超导体可以悬浮在磁体或磁体上。 该系统也可以被驱动，从而感测时间分辨的扰动，导致具有改善的灵敏度和信噪比的频率调制版本。

公开(公告)号：US5006672A

公开(公告)日：1991-04-09

申请号：US330329

申请日：1989-03-29

申请人： Melvin L. Prueitt ,  Fred M. Mueller ,  James L. Smith

发明人： Melvin L. Prueitt ,  Fred M. Mueller ,  James L. Smith

IPC分类号： H01F6/00 ,  H01F7/20 ,  H02J15/00

CPC分类号： H02J15/00 ,  H01F6/00 ,  H01F7/20 ,  Y02E40/67 ,  Y10S505/887

摘要： The present invention identifies several configurations of conducting elements capable of storing extremely high magnetic fields for the purpose of energy storage or for other uses, wherein forces experienced by the conducting elements and the magnetic field pollution produced at locations away from the configuration are both significantly reduced over those which are present as a result of the generation of such high fields by currently proposed techniques. It is anticipated that the use of superconducting materials will both permit the attainment of such high fields and further permit such fields to be generated with vastly improved efficiency.

摘要翻译： 本发明鉴定出能够存储极高磁场以用于能量存储或其它用途的多个导电元件的构造，其中由导电元件所经受的力和远离构造的位置处产生的磁场污染都显着减少 超过由于目前提出的技术产生这样的高领域而存在的那些。 预计使用超导材料将能够实现这样的高领域，并且进一步允许这些领域的效率大大提高。

公开(公告)号：US4992696A

公开(公告)日：1991-02-12

申请号：US311998

申请日：1989-02-17

申请人： Melvin L. Prueitt ,  Fred M. Mueller ,  James L. Smith

发明人： Melvin L. Prueitt ,  Fred M. Mueller ,  James L. Smith

IPC分类号： H05H1/10

CPC分类号： H05H1/10 ,  Y02E30/126

摘要： The present invention identifies several configurations of conducting elements capable of supporting extremely high magnetic fields suitable for plasma confinement, wherein forces experienced by the conducting elements are significantly reduced over those which are present as a result of the generation of such high fields by conventional techniques. It is anticipated that the use of superconducting materials will both permit the attainment of such high fields and further permit such fields to be generated with vastly improved efficiency.

摘要翻译： 本发明确定能够支持适用于等离子体限制的极高磁场的导电元件的几种配置，其中由于通过常规技术产生这种高磁场而存在的导电元件所经受的力显着减小。 预计使用超导材料将能够实现这样的高领域，并且进一步允许这些领域的效率大大提高。