Superconducting magnetic apparatus
    2.
    发明授权
    Superconducting magnetic apparatus 失效
    超导磁性设备

    公开(公告)号:US06781492B2

    公开(公告)日:2004-08-24

    申请号:US10191466

    申请日:2002-07-10

    IPC分类号: H01F600

    摘要: A superconducting magnet apparatus. By forming one or more holes in each of platelike ferromagnetic substances forming a magnetic shield for focusing the magnetic flux generated by superconducting coils, the flow of lines of magnetic flux is adjusted. Thereby, a static magnetic field in a measurement space is corrected. By disposing coupling tubes for supporting two cooling vessels housing superconducting coils on the rear side with respect to a central axis (Z axis) of the measurement space of the vertical direction, access to the subject is facilitated. In addition, the magnetic shield has an opening portion wider than the superconducting magnet on its side face. After the magnetic shield has been assembled, the superconducting magnet can be inserted from the opening portion.

    摘要翻译: 超导磁体装置。 通过在形成用于聚焦超导线圈产生的磁通的磁屏蔽的板状铁磁性物质的每一个中形成一个或多个孔,调节磁通线的流动。 由此,校正测量空间中的静磁场。 通过设置用于支撑相对于垂直方向的测量空间的中心轴线(Z轴)在后侧容纳超导线圈的两个冷却容器的联接管,便于对对象的访问。 此外,磁屏蔽件的侧面具有比超导磁体宽的开口部。 在组装磁屏蔽之后,可以从开口部分插入超导磁体。

    Superconducting magnetic device
    3.
    发明授权
    Superconducting magnetic device 失效
    超导磁性装置

    公开(公告)号:US06437672B1

    公开(公告)日:2002-08-20

    申请号:US09101048

    申请日:1998-06-29

    IPC分类号: H01F600

    摘要: A superconducting magnet apparatus. By forming one or more holes in each of platelike ferromagnetic substances forming a magnetic shield for focusing the magnetic flux generated by superconducting coils, the flow of lines of magnetic flux is adjusted. Thereby, a static magnetic field in a measurement space is corrected. By disposing coupling tubes for supporting two cooling vessels housing superconducting coils on the rear side with respect to a central axis (Z axis) of the measurement space of the vertical direction, access to the subject is facilitated. In addition, the magnetic shield has an opening portion wider than the superconducting magnet on its side face. After the magnetic shield has been assembled, the superconducting magnet can be inserted from the opening portion.

    摘要翻译: 超导磁体装置。 通过在形成用于聚焦超导线圈产生的磁通的磁屏蔽的板状铁磁性物质的每一个中形成一个或多个孔,调节磁通线的流动。 由此,校正测量空间中的静磁场。 通过设置用于支撑相对于垂直方向的测量空间的中心轴线(Z轴)在后侧容纳超导线圈的两个冷却容器的联接管,便于对对象的访问。 此外,磁屏蔽件的侧面具有比超导磁体宽的开口部。 在组装磁屏蔽之后,可以从开口部分插入超导磁体。

    Magnet apparatus and mri apparatus
    5.
    发明授权
    Magnet apparatus and mri apparatus 失效
    磁铁设备和仪器

    公开(公告)号:US06853281B1

    公开(公告)日:2005-02-08

    申请号:US09554155

    申请日:1998-12-01

    摘要: A magnet device includes two sets of static magnetic field generation sources spaced from each other in the vertical direction such that the uniform magnetic field region (patient space) is between then. Each set has concentric current carrying coils to generate a uniform magnetic field in a first direction (the vertical direction). Several such coils are used in each set, disposed such that when a first axis which is parallel to the first (vertical) direction and passes substantially through the centers of the current carrying coils crosses, at a first point, a second axis which is orthogonal to the first axis and is at substantially equal distance from the respective static magnetic field generation sources, the current carrying coils are disposed in such a manner that when geometrical centers of cross sections of the current carrying coils are projected on a first straight line that is in a first plane containing the first axis, the second axis and the first point and passing through the first point, the directions of the currents of the carrying coils at the respective corresponding projections align alternatively in positive and negative directions on the first straight line.

    摘要翻译: 磁体装置包括在垂直方向彼此间隔开的两组静态磁场产生源,使得均匀的磁场区域(患者空间)在之间。 每组具有同心的载流线圈,以在第一方向(垂直方向)上产生均匀的磁场。 在每组中使用若干这样的线圈,这样设置成使得当第一轴线平行于第一(垂直)方向并且基本上穿过载流线圈的中心穿过时,在第一点处与正交的第二轴线交叉 到第一轴线并且距离相应的静态磁场产生源基本上相等的距离,载流线圈以这样的方式设置,使得当载流线圈的横截面的几何中心投影在第一直线上时 在包含第一轴线,第二轴线和第一点并穿过第一点的第一平面中,各个相应突起处的输送线圈的电流方向在第一直线上在正向和负向上交替排列。

    Magnetic migration display panel
    6.
    发明授权
    Magnetic migration display panel 失效
    磁性迁移显示面板

    公开(公告)号:US5846630A

    公开(公告)日:1998-12-08

    申请号:US848158

    申请日:1997-04-29

    IPC分类号: B43L1/00 G09F9/37 B32B3/00

    摘要: A magnetic migration display panel including a dispersion liquid layer composed of a magnetic particle, a dispersion medium composed of an organic solvent, a thickening agent composed of fatty acid bis-amide with a hydroxyl group having a melting point of 120.degree. C. to 160.degree. C., and a coloring material as desired, on a substrate is provided.

    摘要翻译: 一种磁性迁移显示面板,包括由磁性颗粒构成的分散液层,由有机溶剂组成的分散介质,由脂肪酸双酰胺与具有120℃至160℃的熔点的羟基组成的增稠剂 在基材上提供根据需要的着色材料。

    Exhaust silencer unit for propulsion unit
    9.
    发明授权
    Exhaust silencer unit for propulsion unit 失效
    用于推进单元的排气消声器单元

    公开(公告)号:US5096446A

    公开(公告)日:1992-03-17

    申请号:US569998

    申请日:1990-08-20

    摘要: A number of embodiments of exhaust silencers for marine propulsion units including an exhaust device having a first expansion chamber, a pair of second expansion chambers and a third expansion chamber all formed within a common housing. The flow of exhaust gases is from the exhaust of the engine into the first expansion chamber, directly from the first expansion chamber into each of the pair of second expansion chambers and directly from the second expansion chambers to the third expansion chamber. In all embodiments the flow from the second expansion chambers to the third expansion chamber is in confronting relationships so as to improve silencing. In one embodiment, the second expansion chambers have different effective volumes so as to provide an extended range of tuning for the silencing.

    摘要翻译: 用于船用推进装置的排气消音器的多个实施例包括具有第一膨胀室,一对第二膨胀室和第三膨胀室的排气装置,所述排气装置全部形成在公共壳体内。 排气的流动从发动机的排气到第一膨胀室,直接从第一膨胀室进入一对第二膨胀室,并直接从第二膨胀室到第三膨胀室。 在所有实施例中,从第二膨胀室到第三膨胀室的流动是面对的关系,以便改善沉默。 在一个实施例中,第二膨胀室具有不同的有效体积,以便为沉默提供扩展的调谐范围。