公开(公告)号：US20090168286A1

公开(公告)日：2009-07-02

申请号：US12256330

申请日：2008-10-22

申请人： Andrew J. Berkley ,  Sergey V. Uchaykin ,  Thomas F.W. Mahon

发明人： Andrew J. Berkley ,  Sergey V. Uchaykin ,  Thomas F.W. Mahon

IPC分类号： H01H47/00

CPC分类号： H05K9/0077 ,  B82Y10/00 ,  G01R33/0017 ,  G01R33/0354 ,  G06N99/002 ,  H01F6/00

摘要： A localized area is at least partially contained within a perimeter of a shield ring formed by a closed superconducting current path of a material that is superconductive below a critical temperature. The shield ring is at least partially within a perimeter of a compensation coil that is coupled to a current source. One or more measurement devices are responsive to magnetic fields in the vicinity of the localized area, allowing compensation by controlling current to the compensation coil. A heater can raise temperature of the shield ring out of a superconducting condition.

摘要翻译： 局部区域至少部分地包含在由超过低于临界温度的材料的封闭超导电流路径形成的屏蔽环的周边内。 屏蔽环至少部分地在耦合到电流源的补偿线圈的周边内。 一个或多个测量装置响应于局部区域附近的磁场，通过控制到补偿线圈的电流来进行补偿。 加热器可以将屏蔽环的温度升高到超导状态。