Method and apparatus for dynamic magnetic field neutralization
    1.
    发明公开
    Method and apparatus for dynamic magnetic field neutralization 失效
    Verfahren und Vorrichtung zur dynamischen Magnetfeldneutralisierung。

    公开(公告)号:EP0396381A2

    公开(公告)日:1990-11-07

    申请号:EP90304707.4

    申请日:1990-05-01

    申请人: CONRAC SCD, INC.

    IPC分类号: H04N9/29

    摘要: A method and apparatus for nulling the magnetic field within a specified volume in the presence of an external ambient field by generating compensating magnetic fields at a number of locations 13 and 15 around the volume, sensing the field at 20 in the volume and controlling the value of the compensating fields in a closed loop system to null the field within the volume.

    摘要翻译: 一种用于在存在外部环境场的情况下使指定体积内的磁场归零的方法和装置,通过在体积周围的多个位置13和15处产生补偿磁场,感测体积中的20处的磁场并控制该值 的闭环系统中的补偿字段,以使该卷内的字段为空。

    Method and apparatus for dynamic magnetic field neutralization
    2.
    发明公开
    Method and apparatus for dynamic magnetic field neutralization 失效
    用于动态磁场中和的方法和装置

    公开(公告)号:EP0396381A3

    公开(公告)日:1992-11-04

    申请号:EP90304707.4

    申请日:1990-05-01

    申请人: CONRAC SCD, INC.

    IPC分类号: H04N9/29

    摘要: A method and apparatus for nulling the magnetic field within a specified volume in the presence of an external ambient field by generating compensating magnetic fields at a number of locations 13 and 15 around the volume, sensing the field at 20 in the volume and controlling the value of the compensating fields in a closed loop system to null the field within the volume.

    摘要翻译: 一种用于在存在外部环境场的情况下使指定体积内的磁场归零的方法和装置,通过在体积周围的多个位置13和15处产生补偿磁场,感测体积中的20处的磁场并控制该值 的闭环系统中的补偿字段,以使该卷内的字段为空。