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19 条记录 (耗时 0.015 秒)

    Multiphase flow metering with patch antenna
    3.
    发明授权
    Multiphase flow metering with patch antenna 有权
    带贴片天线的多相流量测量

    公开(公告)号：US08855947B2

    公开(公告)日：2014-10-07

    申请号：US12916149

    申请日：2010-10-29

    申请人： Aparna Chakrapani Sheila-Vadde ,  Prafull Sharma ,  Manoj Kumar Koyithitta Meethal ,  Mandar Diwakar Godbole

    发明人： Aparna Chakrapani Sheila-Vadde ,  Prafull Sharma ,  Manoj Kumar Koyithitta Meethal ,  Mandar Diwakar Godbole

    IPC分类号： G01F1/66

    CPC分类号： G01F1/66 ,  G01F1/662 ,  G01F1/712 ,  G01F1/74 ,  G01N22/00 ,  G01N33/2823

    摘要： Various methods of metering a multi-phase composition in a pipe using patch antenna(s), that operate in a radio or microwave frequency range, are disclosed including locating and then exciting the patch antenna(s) over a range of frequencies; measuring transmitted and reflected signals over time; estimating a shift in a resonant frequency from a baseline resonant frequency; then calculating a permittivity of the composition, based on the shift; and calculating a phase composition of the multi-phase composition. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.

    摘要翻译： 公开了使用在无线电或微波频率范围内工作的贴片天线在管道中测量多相组合的各种方法，包括在频率范围上定位并随后激发贴片天线; 随时间测量发射和反射信号; 估计共振频率从基线共振频率的偏移; 然后根据班次计算组合物的介电常数; 并计算多相组成的相组成。 已经根据具体实施例描述了本发明，并且认识到除了明确说明的那些之外的等同物，替代方案和修改是可能的并且在所附权利要求的范围内。

    Electrical network representation of a distributed system
    6.
    发明授权
    Electrical network representation of a distributed system 有权
    分布式系统的电气网络表示

    公开(公告)号：US08264246B2

    公开(公告)日：2012-09-11

    申请号：US12652116

    申请日：2010-01-05

    申请人： Sakethraman Mahalingam ,  Manoj Kumar Koyithitta Meethal ,  Arijit Banerjee ,  Wrichik Basu ,  Harish Kumar Pillai

    发明人： Sakethraman Mahalingam ,  Manoj Kumar Koyithitta Meethal ,  Arijit Banerjee ,  Wrichik Basu ,  Harish Kumar Pillai

    IPC分类号： G01R27/08

    CPC分类号： G01N27/02 ,  A61B5/0536 ,  G01N33/2823

    摘要： A method for determining characteristics of a multi-material object is provided. The method includes producing a rotating electric field by providing an applied electrical signal set of individual electrical signal patterns to electrodes surrounding the multi-material object. The method also includes obtaining a measured electrical signal of electrical signals from the electrodes corresponding to each electrical signal pattern applied. An electrical network is determined based on the applied electrical signal set, the measured electrical signal set and an inverse of the applied electrical signal set. The method further includes determining the characteristics of the multi-material object by analyzing the electrical network.

    摘要翻译： 提供了一种用于确定多材料物体的特性的方法。 该方法包括通过向围绕多材料物体的电极提供各个电信号图案的施加电信号组来产生旋转电场。 该方法还包括从对应于所施加的每个电信号图案的电极获得测得的电信号的电信号。 基于所应用的电信号集合，所测量的电信号集合和所施加的电信号集合的倒数来确定电网络。 该方法还包括通过分析电网确定多材料物体的特性。

    Electromagnetic acoustic transducer
    9.
    发明授权
    Electromagnetic acoustic transducer 有权
    电磁换能器

    公开(公告)号：US07546770B2

    公开(公告)日：2009-06-16

    申请号：US11325945

    申请日：2006-01-05

    申请人： Manoj Kumar Koyithitta Meethal ,  David Martin Paige

    发明人： Manoj Kumar Koyithitta Meethal ,  David Martin Paige

    IPC分类号： G01N29/24

    CPC分类号： G01N29/2412 ,  G01N2291/0422

    摘要： An electromagnetic acoustic transducer (EMAT) for inspecting an object is provided. The EMAT includes a magnet configured to generate a magnetic field in an object and a radio frequency coil configured to induce eddy currents on a surface of the object. The EMAT further includes a laminated wear plate disposed over the magnet and the radio frequency coil and configured to shield the magnet and the radio frequency coil from damage.

    摘要翻译： 提供了一种用于检查物体的电磁声换能器（EMAT）。 EMAT包括被配置为在物体中产生磁场的磁体和被配置为在物体的表面上引起涡流的射频线圈。 EMAT还包括设置在磁体和射频线圈之上的层叠耐磨板，并且构造成屏蔽磁体和射频线圈免受损坏。

    Transducer configurations and methods for transducer positioning in electrical impedance tomography
    10.
    发明授权
    Transducer configurations and methods for transducer positioning in electrical impedance tomography 有权
    用于电阻抗层析成像中传感器定位的传感器配置和方法

    公开(公告)号：US08963562B2

    公开(公告)日：2015-02-24

    申请号：US13222825

    申请日：2011-08-31

    申请人： Wrichik Basu ,  Manoj Kumar Koyithitta Meethal ,  Sakethraman Mahalingam ,  Rajesh Veera Venkata Lakshmi Langoju ,  Parama Ghoshal

    发明人： Wrichik Basu ,  Manoj Kumar Koyithitta Meethal ,  Sakethraman Mahalingam ,  Rajesh Veera Venkata Lakshmi Langoju ,  Parama Ghoshal

    IPC分类号： G01R27/28 ,  G01N27/02 ,  G01N33/28

    CPC分类号： G01N27/026 ,  G01N33/2823

    摘要： Transducer configurations and methods for transducer positioning in electrical impedance tomography are provided. A plurality of transducers for one electrical impedance tomography arrangement are configured for positioning proximate a surface of an object and spaced apart along the object, wherein the transducers are one or more conductive rings and have at least one non-conductive portion. The arrangement further includes one or more excitation drivers coupled to the plurality of transducers and configured to generate excitation signals for the plurality of transducers. The arrangement also includes one or more response detectors coupled to the plurality of transducers and configured to measure a response of the object at the plurality of transducers to the excitation applied by the plurality of transducers based on the excitation signals. The arrangement additionally includes a soft-field reconstruction module configured to reconstruct a property distribution based on the excitation signals and the measured response.

    摘要翻译： 提供了用于电阻抗层析成像中传感器定位的传感器配置和方法。 用于一个电阻抗断层摄影装置的多个换能器被配置用于沿着物体的表面定位并且沿物体间隔开，其中换能器是一个或多个导电环并具有至少一个非导电部分。 该装置还包括耦合到多个换能器的一个或多个激励驱动器，并被配置为产生用于多个换能器的激励信号。 该布置还包括耦合到多个换能器的一个或多个响应检测器，并且被配置为基于激励信号来测量多个换能器上的物体对由多个换能器施加的激励的响应。 该装置还包括软场重建模块，其被配置为基于激励信号和所测量的响应来重构属性分布。