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17 条记录 (耗时 0.059 秒)

    FIXED IMPEDANCE LOW PASS METAL POWDER FILTER WITH A PLANAR BURIED STRIPLINE GEOMETRY
    2.
    发明申请
    FIXED IMPEDANCE LOW PASS METAL POWDER FILTER WITH A PLANAR BURIED STRIPLINE GEOMETRY 审中-公开
    固定阻抗低通金属粉末过滤器与平面布线条纹几何

    公开(公告)号：US20080284545A1

    公开(公告)日：2008-11-20

    申请号：US11748628

    申请日：2007-05-15

    申请人： George Andrew Keefe ,  Roger Hilsen Koch ,  Frank P. Milliken, JR. ,  James R. Rozen

    发明人： George Andrew Keefe ,  Roger Hilsen Koch ,  Frank P. Milliken, JR. ,  James R. Rozen

    IPC分类号： H01P1/203

    CPC分类号： H01P3/085 ,  H05K1/024 ,  H05K1/0298 ,  H05K1/0373 ,  H05K2201/0195 ,  H05K2201/0215 ,  H05K2201/0715

    摘要： A fixed impedance low pass metal powder filter having a planar buried stripline geometry comprises first and second parallel ground planes spaced from one another and a central stripline spaced equal distance from the first and second parallel ground planes and parallel thereto. The space between the first and second ground planes is filled with a dielectric containing metal powder. The densities of the metal powder within the dielectric are highest near the central stripline and become less near the first and second ground planes. The dielectric is a laminated structure that comprises layers of epoxy impregnated fiberglass, layers having different densities of metal powder.

    摘要翻译： 具有平面埋地带状线几何形状的固定阻抗低通金属粉末过滤器包括彼此间隔开的第一和第二平行接地平面以及与第一和第二平行接地平面间隔开并与之平行的中心带状线。 第一和第二接地层之间的空间填充有含电介质的金属粉末。 电介质中金属粉末的密度在中心带状线附近是最高的，并且在第一和第二接地平面附近变得更少。 电介质是层压结构，其包含环氧树脂浸渍的玻璃纤维层，具有不同密度的金属粉末的层。

    Magnetic field gradiometer with improved correction circuits
    6.
    发明授权
    Magnetic field gradiometer with improved correction circuits 失效
    具有改进校正电路的磁场梯度仪

    公开(公告)号：US5642045A

    公开(公告)日：1997-06-24

    申请号：US516846

    申请日：1995-08-18

    申请人： George Andrew Keefe ,  Roger Hilsen Koch

    发明人： George Andrew Keefe ,  Roger Hilsen Koch

    IPC分类号： G01R33/022 ,  G01R33/025 ,  G01R33/04 ,  G01V3/08

    CPC分类号： G01R33/022

    摘要： An improved magnetic field gradiometer having major and minor correction circuits is disclosed. The major correction circuits cancel the main components of an applied magnetic field, such as the earth's uniform field, and the minor correction circuits correct for smaller, but still significant effects, such as assembly imperfections and unavoidable cross-talk between the elements of the gradiometer. Also disclosed is a method for processing the gradient data from the gradiometer to enable the positions of magnetic objects to be located in space.

    摘要翻译： 公开了一种具有主要和次要校正电路的改进的磁场梯度计。 主要的校正电路消除了所施加的磁场的主要组件，例如地球的均匀场，并且小的校正电路校正了较小但仍然显着的效果，例如组装缺陷和梯度仪元件之间的不可避免的串扰 。 还公开了一种用于处理来自梯度计的梯度数据以使得磁性物体的位置能够位于空间中的方法。