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12 条记录 (耗时 0.029 秒)

    Cathode header optic for x-ray tube
    6.
    发明授权
    Cathode header optic for x-ray tube 有权
    用于x射线管的阴极头镜

    公开(公告)号：US07529345B2

    公开(公告)日：2009-05-05

    申请号：US11879970

    申请日：2007-07-18

    申请人： Erik C. Bard ,  Steven D. Liddiard ,  Charles R. Jensen

    发明人： Erik C. Bard ,  Steven D. Liddiard ,  Charles R. Jensen

    IPC分类号： H01J35/06

    CPC分类号： H01J35/06 ,  H01J35/14

    摘要： A cathode header optic for an x-ray tube includes an elongate trench with opposite trench walls. A cup recess is formed in the trench between the opposite trench walls, and has a bounded perimeter. A cathode element is disposed in the trench at the cup recess. The cathode element is capable of heating and releasing electrons. A secondary cathode optic defining a cathode ring can be disposed about the header optic. The cathode optics can form part of an x-ray tube.

    摘要翻译： 用于X射线管的阴极头部光学器件包括具有相对的沟槽壁的细长沟槽。 在相对的沟槽壁之间的沟槽中形成杯形凹部，并且具有有界的周长。 阴极元件设置在凹槽中的沟槽中。 阴极元件能够加热和释放电子。 限定阴极环的次级阴极光学器件可围绕头部光学元件设置。 阴极光学器件可以形成X射线管的一部分。

    Magnetic head for X-ray source
    7.
    发明授权
    Magnetic head for X-ray source 失效
    磁头用于X射线源

    公开(公告)号：US07428298B2

    公开(公告)日：2008-09-23

    申请号：US11395531

    申请日：2006-03-30

    申请人： Erik C. Bard ,  Charles R. Jensen ,  Arturo Reyes ,  Shaun P. Ogden ,  Steven D. Liddiard

    发明人： Erik C. Bard ,  Charles R. Jensen ,  Arturo Reyes ,  Shaun P. Ogden ,  Steven D. Liddiard

    IPC分类号： H01J35/14 ,  H01J35/30 ,  H01J2/00

    CPC分类号： H01J35/16 ,  H01J35/14 ,  H01J2235/087 ,  H01J2235/165 ,  H05G1/04

    摘要： An X-ray source includes a magnetic appliance to provide electron beam focusing. The magnetic appliance can provide variably focused and non-focused configurations. The magnetic appliance can include one or more electromagnets and/or permanent magnets. An electric potential difference is applied to an anode and a cathode that are disposed on opposite sides of an evacuated tube. The cathode includes a cathode element to produce electrons that are accelerated towards the anode in response to the electric field between the anode and the cathode. The anode includes a target material to produce x-rays in response to impact of electrons.

    摘要翻译： X射线源包括提供电子束聚焦的磁性器具。 磁性设备可以提供可变的聚焦和非聚焦配置。 磁性器具可以包括一个或多个电磁体和/或永磁体。 对设置在真空管的相对侧的阳极和阴极施加电位差。 阴极包括阴极元件，以产生响应于阳极和阴极之间的电场而朝向阳极加速的电子。 阳极包括响应于电子的冲击而产生x射线的靶材料。

    X-ray tube cathode with reduced unintended electrical field emission
    8.
    发明授权
    X-ray tube cathode with reduced unintended electrical field emission 有权
    X射线管阴极减少意外的电场发射

    公开(公告)号：US07382862B2

    公开(公告)日：2008-06-03

    申请号：US11540133

    申请日：2006-09-28

    申请人： Erik C. Bard ,  Charles R. Jensen ,  Shaun P. Ogden ,  Steven D. Liddiard

    发明人： Erik C. Bard ,  Charles R. Jensen ,  Shaun P. Ogden ,  Steven D. Liddiard

    IPC分类号： H01J35/00 ,  H01J35/06 ,  H01J35/14

    CPC分类号： H01J35/14 ,  H01J35/18 ,  H01J2235/1216

    摘要： An x-ray source has an evacuated tube. An anode is disposed in the tube and includes a material configured to produce x-rays in response to impact of electrons. A cathode is disposed in the tube opposing the anode configured to produce electrons accelerated towards the anode in response to an electric field between the anode and the cathode. A flange extends from the cathode toward the anode, and has a smaller diameter than the evacuated tube. The flange extends closer to the anode than an interface between the cathode and the tube thus forming a reduced-field region between the evacuated tube and the flange.

    摘要翻译： x射线源具有抽真空管。 阳极设置在管中并且包括被配置为响应于电子的冲击产生x射线的材料。 阴极配置在与阳极相对的管中，配置为响应于阳极和阴极之间的电场产生向阳极加速的电子。 凸缘从阴极延伸到阳极，并且具有比抽真空管更小的直径。 凸缘比阴极和管之间的界面更靠近阳极，从而在真空管和凸缘之间形成减小区域。

    Coil for an AC current sensor
    9.
    发明授权
    Coil for an AC current sensor 失效
    线圈用于交流电流传感器

    公开(公告)号：US06566994B1

    公开(公告)日：2003-05-20

    申请号：US08819527

    申请日：1997-03-17

    申请人： Charles R. Jensen

    发明人： Charles R. Jensen

    IPC分类号： H01F2728

    CPC分类号： G01R15/181

    摘要： An improved formable coil for an AC sensor having a predetermined length and a predetermined number of turns. The coil is wound in multiple passes in opposite directions, with a predetermined number of passes in each direction to fill in any gaps and provide a stable helical-wound coil. A preferred embodiment is wound on a collapsible mandrel to facilitate free removal of the coil from the mandrel.

    摘要翻译： 一种用于具有预定长度和预定匝数的AC传感器的改进的可成形线圈。 线圈沿相反方向以多次通过缠绕，在每个方向上具有预定数量的通过以填充任何间隙并提供稳定的螺旋缠绕线圈。 优选的实施例被卷绕在可折叠的心轴上以便于从心轴上释放线圈。

    Multimeter with current sensor
    10.
    发明授权
    Multimeter with current sensor 失效
    万用表带电流传感器

    公开(公告)号：US6043640A

    公开(公告)日：2000-03-28

    申请号：US960410

    申请日：1997-10-29

    申请人： William J. Lauby ,  Charles A. Bublitz ,  Charles R. Jensen ,  Brian S. Aikins ,  Steven W. Fisher

    发明人： William J. Lauby ,  Charles A. Bublitz ,  Charles R. Jensen ,  Brian S. Aikins ,  Steven W. Fisher

    IPC分类号： G01R1/22 ,  G01R15/12 ,  G01R27/02 ,  G01R1/00

    CPC分类号： G01R15/125

    摘要： A multimeter having an elongated housing with a fixed recess for receiving a current-carrying conductor is provided. The multimeter is adapted to measure various parameters including a.c. and d.c. voltage, resistance, and a.c. current. On one end of the elongated housing of the multimeter is a C-shaped current sensor mounted around the fixed recess for measuring a.c. current in the current-carrying conductor and on the other end is a pair of test leads for measuring resistance, a.c. voltage, and d.c. voltage. The current sensor and the test leads provide input signals to an analog-to-digital converter (ADC) to obtain digital samples which are displayed as measurement results according to the selected measurement mode.

    摘要翻译： 提供一种具有细长壳体的万用表，其具有用于接收载流导体的固定凹部。 万用表适用于测量各种参数，包括a.c. 和d.c. 电压，电阻和电流。 当前。 在万用表的细长壳体的一端是安装在固定凹槽周围的C形电流传感器，用于测量直流电流。 载流导体中的电流和另一端的电流是一对用于测量电阻的测试引线。 电压和直流 电压。 电流传感器和测试引线向模数转换器（ADC）提供输入信号，以获得根据所选测量模式显示为测量结果的数字样本。