利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

5 条记录 (耗时 0.018 秒)

    Gradient coil assembly and method of production of same
    1.
    发明授权
    Gradient coil assembly and method of production of same 失效
    梯度线圈组装及其生产方法相同

    公开(公告)号：US06111412A

    公开(公告)日：2000-08-29

    申请号：US83125

    申请日：1998-05-22

    申请人： Franz Boemmel ,  Johann Schuster ,  Arthur Kaindl

    发明人： Franz Boemmel ,  Johann Schuster ,  Arthur Kaindl

    IPC分类号： G01R33/385 ,  G01V3/00

    CPC分类号： G01R33/3856

    摘要： A gradient coil assembly for an NMR tomography apparatus has at least one gradient coil and at least one cooling structure, the cooling structure including at least one flexible cooling conduit for a cooling medium, this conduit being arranged on a flexible carrier. In a method for producing such a gradient coil assembly, a gradient coil and a cooling structure are flexibly attached to a flexible carrier, with the cooling structure being in thermally conducting contact with the gradient coil.

    摘要翻译： 用于NMR层析成像装置的梯度线圈组件具有至少一个梯度线圈和至少一个冷却结构，所述冷却结构包括用于冷却介质的至少一个柔性冷却导管，该导管布置在柔性载体上。 在制造这种梯度线圈组件的方法中，梯度线圈和冷却结构柔性地附接到柔性载体上，其中冷却结构与梯度线圈导热接触。

    Gradient coil with direct cooling
    3.
    发明授权
    Gradient coil with direct cooling 失效
    梯度线圈直接冷却

    公开(公告)号：US06552545B2

    公开(公告)日：2003-04-22

    申请号：US09833909

    申请日：2001-04-12

    申请人： Arthur Kaindl ,  Lothar Schoen ,  Johann Schuster

    发明人： Arthur Kaindl ,  Lothar Schoen ,  Johann Schuster

    IPC分类号： G01V300

    CPC分类号： G01R33/3856 ,  F28D7/0025 ,  F28D7/0041

    摘要： Gradient coil for magnetic resonance (MR) devices has direct cooling by means of cooling lines that are embedded in the coil and through which a cooling agent flows. The cooling lines are arranged substantially parallel to one another, such as parallel to the axis of the gradient coil, and are combined to form heat exchanger modules whose individual cooling lines are coupled with one another so that the maximum length between the inlet and outlet of a module corresponds to twice the longitudinal length of the gradient coil.

    摘要翻译： 用于磁共振（MR）装置的梯度线圈通过嵌入在线圈中并通过冷却剂流过的冷却线直接冷却。 冷却管线彼此基本平行地布置，例如平行于梯度线圈的轴线，并且被组合以形成其各个冷却管线彼此联接的热交换器模块，使得入口和出口之间的最大长度 模块对应于梯度线圈的纵向长度的两倍。

    Method for determining sources of interference
    4.
    发明授权
    Method for determining sources of interference 失效
    确定干扰源的方法

    公开(公告)号：US06469515B2

    公开(公告)日：2002-10-22

    申请号：US09813435

    申请日：2001-03-20

    申请人： Hossein Borsi ,  Arthur Kaindl ,  Stefan Nowak

    发明人： Hossein Borsi ,  Arthur Kaindl ,  Stefan Nowak

    IPC分类号： G01R3100

    CPC分类号： G01R31/1227 ,  G01R33/385

    摘要： A method for determining sources of interference that cause partial discharges in an encapsulated conductor structure of a magnetic resonance apparatus, particularly in a gradient coil. Under the method, a low-frequency high voltage is applied to a conductor, and signals resulting from an adjacent high voltage are measured within a frequency range located in the kHz range, particularly from 40 to 400 kHz. The signals are analyzed in order to determine partial discharges. The conductor is again charged with a low-frequency high voltage and additional signals are measured within a frequency range located in the MHz range, particularly from 10 to 300 MHz. The additional signals are analyzed in order to determine partial discharges.

    摘要翻译： 一种用于确定在磁共振装置的封装的导体结构中引起部分放电的干扰源的方法，特别是在梯度线圈中。 在该方法下，向导体施加低频高电压，并且在位于kHz范围内，特别是40至400kHz的频率范围内测量由相邻高电压产生的信号。 分析信号以确定局部放电。 导体再次充有低频高电压，并且在位于MHz范围内，特别是10至300MHz的频率范围内测量附加信号。 分析附加信号以确定部分放电。