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9 条记录 (耗时 0.05 秒)

    Electromagnetic actuator
    7.
    发明申请
    Electromagnetic actuator 有权
    电磁执行器

    公开(公告)号：US20050104697A1

    公开(公告)日：2005-05-19

    申请号：US10502929

    申请日：2003-02-11

    申请人： Matthew Fletcher

    发明人： Matthew Fletcher

    IPC分类号： G01M7/02 ,  G01M7/04 ,  H02K33/16 ,  H01F7/08

    CPC分类号： H02K33/16 ,  G01M7/04

    摘要： An actuator for applying force along an axis to a body, comprising an annular body arranged along the axis, an annular magnetic field source within and substantially coaxially with the annular body, a substantially cylindrical central member arranged substantially coaxially within the annular body in a fixed relationship with a gap formed between the central member and the annular body and an armature comprising a substantially cylindrical hollow member extending at least partially into the gap between the central member and the annular body. The hollow member has first and second spaced coils positioned at either side of the magnetic field source when the armature is at rest, such that the areas of the gap in which the first and second coils are positioned are magnetic flux gaps, and the armature and the annular body are translationally relatively moveable when the first and second coils are energised with opposite currents.

    摘要翻译： 一种用于沿轴线向主体施加力的致动器，包括沿着轴线布置的环形体，环形磁场源在环形体内并与其基本上同轴;基本上圆柱形的中心构件，大致同轴地布置在环形体内， 与在中心构件和环形体之间形成的间隙的关系以及包括至少部分地延伸到中心构件和环形体之间的间隙的基本上圆柱形的中空构件的衔铁。 当电枢静止时，中空构件具有位于磁场源的任一侧的第一和第二间隔的线圈，使得第一和第二线圈所在的间隙的面积是磁通量间隙，并且电枢和 当第一和第二线圈以相反的电流通电时，环形体平移地相对移动。

    ARMATURE FOR AN ACTUATOR
    8.
    发明申请
    ARMATURE FOR AN ACTUATOR 有权
    执行机构

    公开(公告)号：US20050099084A1

    公开(公告)日：2005-05-12

    申请号：US10701559

    申请日：2003-11-06

    申请人： Matthew Fletcher

    发明人： Matthew Fletcher

    IPC分类号： G01H1/00 ,  G01M7/04 ,  H01F7/06 ,  H02K3/28 ,  H02K33/12 ,  H02K1/00 ,  H02K21/00 ,  H02K27/02

    CPC分类号： H02K33/12 ,  G01H1/00 ,  G01M7/04 ,  H01F7/066 ,  H02K3/28

    摘要： An armature for an actuator for applying vibration to a body along an axis, the armature having at least two parallel wound helical windings on the axis, and a terminal arrangement connected to the ends of the windings for selective connection of the windings to two external A.C. drivelines, the terminal arrangement being switchable between a relatively low impedance mode, with at least two of the windings connected electrically in parallel, and a relatively high impedance mode, with two of the windings or two groups of parallel-connected windings connected in series.

    摘要翻译： 一种用于沿轴线向身体施加振动的致动器的衔铁，所述电枢在所述轴上具有至少两个平行的缠绕的螺旋绕组，以及连接到所述绕组的端部的端子装置，用于将绕组选择性地连接到两个外部AC 传动系统中，端子装置可以在相对低阻抗模式之间切换，其中至少两个绕组并联连接并且具有较高阻抗模式，其中两个绕组或两组并联绕组串联连接。

    Vibration testing apparatus and a method of vibration testing
    9.
    发明申请
    Vibration testing apparatus and a method of vibration testing 有权
    振动试验装置及振动试验方法

    公开(公告)号：US20050257619A1

    公开(公告)日：2005-11-24

    申请号：US10849898

    申请日：2004-05-21

    申请人： Matthew Fletcher

    发明人： Matthew Fletcher

    IPC分类号： G01M7/02 ,  G01M7/04 ,  G01N29/00 ,  G01N29/22

    CPC分类号： G01M7/027 ,  G01M7/04 ,  G01N29/225

    摘要： In order to provide a vibration testing apparatus which can have a large diameter without introducing undesirable rigid vibration modes, the vibration testing apparatus 1 comprises a support 2, at least one electromagnetic vibration generator 12 mounted on the support, the mounting comprising an annular body 5 and a head expander 10, the annular body being supported by bearings located around the periphery of the annular body 5.

    摘要翻译： 为了提供可以具有大直径而不引入不期望的刚性振动模式的振动测试装置，振动测试装置1包括支撑件2，安装在支撑件上的至少一个电磁振动发生器12，该安装件包括环形体5 和头部膨胀器10，环形体由围绕环形体5的周边的轴承支撑。