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    ACTIVATION OF FIELD COILS OF A MAGNETIC RESONANCE SYSTEM HAVING EDDY CURRENT COMPENSATION
    6.
    发明申请
    ACTIVATION OF FIELD COILS OF A MAGNETIC RESONANCE SYSTEM HAVING EDDY CURRENT COMPENSATION 有权
    具有EDDY电流补偿的磁共振系统的现场线圈的激活

    公开(公告)号：US20130187653A1

    公开(公告)日：2013-07-25

    申请号：US13554870

    申请日：2012-07-20

    申请人： Eva Eberlein ,  Ralph Kimmlingen ,  Franz Schmitt ,  Johann Schuster

    发明人： Eva Eberlein ,  Ralph Kimmlingen ,  Franz Schmitt ,  Johann Schuster

    IPC分类号： G01R33/54

    CPC分类号： G01R33/543 ,  G01R33/389

    摘要： A controller of a magnetic resonance system determines an activation signal vector based on a target field predetermined for the controller in conjunction with field characteristics of field coils known to the controller. The activation signal vector includes a respective activation signal for each field coil. The controller determines the activation signal vector such that within a predetermined examination volume of the magnetic resonance system, any deviation of an ideal field that would result if ideal coils were subjected to the activation signals of the activation signal vector from the target field is minimized. The controller determines a compensation signal vector based on the activation signal vector in conjunction with eddy current characteristics of the field coils known to the controller. The compensation signal vector is used to minimize a deviation of an actual field from the target field within the predetermined examination volume of the magnetic resonance system.

    摘要翻译： 磁共振系统的控制器结合控制器已知的场线圈的场特性，基于为控制器预定的目标场确定激活信号矢量。 激活信号向量包括用于每个励磁线圈的相应启动信号。 控制器确定激活信号向量，使得在磁共振系统的预定检查体积内，如果理想线圈受到来自目标场的激活信号矢量的激活信号的任何理想场的偏差都将最小化。 控制器基于激活信号向量结合控制器已知的励磁线圈的涡流特性来确定补偿信号向量。 补偿信号矢量被用于最小化在磁共振系统的预定检查体积内的实际场与目标场的偏差。

    METHOD FOR PRODUCING A GRADIENT COIL ASSEMBLY AND WINDING MANDREL
    7.
    发明申请
    METHOD FOR PRODUCING A GRADIENT COIL ASSEMBLY AND WINDING MANDREL 有权
    用于生产梯形线圈组件和卷绕机的方法

    公开(公告)号：US20120317795A1

    公开(公告)日：2012-12-20

    申请号：US13525177

    申请日：2012-06-15

    申请人： Sascha Fath ,  Ralph Kimmlingen ,  Johann Schuster

    发明人： Sascha Fath ,  Ralph Kimmlingen ,  Johann Schuster

    IPC分类号： H01F7/06

    CPC分类号： G01R33/3858 ,  G01R33/3875 ,  G01R33/4215 ,  Y10T29/49004 ,  Y10T29/4902 ,  Y10T29/49071 ,  Y10T29/53265

    摘要： A method for producing a gradient coil assembly for a magnetic resonance imaging system includes applying a number of primary gradient coils and a number of secondary gradient coils to a winding mandrel to form the gradient coil assembly. A control coil arrangement is associated with the winding mandrel. During an intermediate check before completion of the gradient coil assembly, at least one coupling inductance value between the control coil arrangement and at least one of the primary gradient coils and/or at least one of the secondary gradient coils is determined. An arrangement of the relevant gradient coils on the winding mandrel is corrected as a function of the at least one coupling inductance value.

    摘要翻译： 用于制造用于磁共振成像系统的梯度线圈组件的方法包括将多个初级梯度线圈和多个次级梯度线圈施加到绕组心轴以形成梯度线圈组件。 控制线圈装置与卷绕心轴相关联。 在梯形线圈组件完成之前的中间检查期间，确定控制线圈装置与至少一个主梯度线圈和/或至少一个次级梯度线圈之间的至少一个耦合电感值。 作为至少一个耦合电感值的函数校正绕组心轴上的相关梯度线圈的布置。

    GRADIENT COIL ARRANGEMENT AND PRODUCTION METHOD
    8.
    发明申请
    GRADIENT COIL ARRANGEMENT AND PRODUCTION METHOD 有权
    梯度线圈布置和生产方法

    公开(公告)号：US20120119741A1

    公开(公告)日：2012-05-17

    申请号：US13090070

    申请日：2011-04-19

    申请人： Ralph Kimmlingen ,  Johann Schuster

    发明人： Ralph Kimmlingen ,  Johann Schuster

    IPC分类号： G01R33/385 ,  H01F7/06

    CPC分类号： G01R33/3858 ,  G01R33/3856 ,  Y10T29/4902

    摘要： The present embodiments optimize a gradient coil structure with a gradient coil arrangement for a magnetic resonance tomography device. The gradient coil arrangement includes a carrier plate with holes. Inserts are located in the holes. The inserts are made of an electrically isolating, thermally conductive material.

    摘要翻译： 本实施例使用用于磁共振断层摄影装置的梯度线圈装置来优化梯度线圈结构。 梯度线圈装置包括具有孔的载板。 插入位于孔中。 插入件由电绝缘导热材料制成。

    Arrangement to connect gradient current feed lines in a magnetic resonance apparatus
    10.
    发明授权
    Arrangement to connect gradient current feed lines in a magnetic resonance apparatus 有权
    在磁共振设备中​​连接梯度电流馈线的布置

    公开(公告)号：US07924005B2

    公开(公告)日：2011-04-12

    申请号：US12428854

    申请日：2009-04-23

    申请人： Peter Dietz ,  Johann Schuster ,  Stefan Stocker

    发明人： Peter Dietz ,  Johann Schuster ,  Stefan Stocker

    IPC分类号： G01V3/00

    CPC分类号： G01R33/385 ,  G01R33/288 ,  G01R33/3854

    摘要： An arrangement for connection of gradient current feed lines in a magnetic resonance apparatus has an electrically insulating connection plate with at least one connection device. The connection device is fashioned to electrically connect a first gradient current feed line with a second gradient current feed line and is associated with a gradient coil that forms a gradient field via a supplied gradient current for a spatial direction. The supply ensues via the two gradient current feed lines connected with one another. A base plate that is fashioned for fastening the connection plate to a magnet housing of the magnetic resonance apparatus. An electrically insulating layer to damp vibrations of the connection plate is arranged between the base plate and the connection plate.

    摘要翻译： 用于在磁共振装置中连接梯度电流馈线的装置具有至少一个连接装置的电绝缘连接板。 连接装置的形式是将第一梯度电流馈送线与第二梯度电流馈电线电连接，并与经由所供应的用于空间方向的梯度电流形成梯度场的梯度线圈相关联。 通过彼此连接的两个梯度电流馈电线供应电源。 一种用于将连接板紧固到磁共振装置的磁体壳体上的基板。 在基板和连接板之间布置有用于抑制连接板振动的电绝缘层。