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公开(公告)号:US5807251A
公开(公告)日:1998-09-15
申请号:US700370
申请日:1996-08-26
CPC分类号: A61B5/0536
摘要: Method and apparatus for obtaining a representation of the distribution of electrical impedance within material contained within a containing wall, comprising providing a plurality of mutually spaced electrodes mounted at spaced locations of the wall, electrically insulated from one another and arranged to be in electrical contact with material contained within the wall, applying between an electrical reference ground and each electrode, separately, an input electrical signal which, while applied to any one of the electrodes, causes respective output electrical signals to be generated between the reference ground and each other one of the electrodes, measuring the output electrical signals and processing the resulting measured data to provide a representation of the distribution, within the said material, of its electrical impedance.
摘要翻译: PCT No.PCT / GB95 / 00520 Sec。 371日期:1996年8月26日 102(e)日期1996年8月26日PCT 1995年3月10日PCT公布。 出版物WO95 / 24155 日期1995年9月14日用于获得包含在容纳壁内的材料内的电阻抗分布表示的方法和装置,包括提供多个相互间隔的电极,所述多个相互间隔的电极安装在所述壁的间隔位置处,彼此电绝缘并布置成 与包含在壁内的材料电接触,在电参考接地和每个电极之间分别施加输入电信号,该输入电信号在施加到任何一个电极时使得在参考地面之间产生相应的输出电信号 和彼此之一的电极,测量输出的电信号并处理所得到的测量数据以提供在所述材料内的其电阻抗的分布的表示。
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公开(公告)号:US09207198B2
公开(公告)日:2015-12-08
申请号:US13380010
申请日:2010-06-22
申请人: Mi Wang , Jiabin Jia
发明人: Mi Wang , Jiabin Jia
CPC分类号: G01N27/026
摘要: Electrical tomography apparatus comprises: a first electrode; a second electrode; and current driving means for driving an electrical current between the first electrode and the second electrode through a medium, wherein the current driving means comprises: a first transformer having a first winding and a second winding, the second winding having a first terminal and a second terminal; and means for generating an alternating current through the first winding so as to generate an alternating voltage between said first terminal and said second terminal. The apparatus further comprises connecting means arranged to connect the first terminal to the first electrode and the second terminal to the second electrode. Generation of the alternating current in the first winding results in generation of an alternating voltage between the first and second electrodes. In certain embodiments, a current sensing transformer provides an indication of current driven through the medium.
摘要翻译: 电子断层摄影装置包括:第一电极; 第二电极; 以及用于通过介质驱动第一电极和第二电极之间的电流的电流驱动装置,其中电流驱动装置包括:具有第一绕组和第二绕组的第一变压器,第二绕组具有第一端子和第二端子 终奌站; 以及用于产生通过第一绕组的交流电流以在所述第一端子和所述第二端子之间产生交流电压的装置。 该装置还包括连接装置,其被配置为将第一端子连接到第一电极,将第二端子连接到第二电极。 在第一绕组中产生交流电导致在第一和第二电极之间产生交流电压。 在某些实施例中,电流感测变压器提供通过介质驱动的电流的指示。
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公开(公告)号:US20070166011A1
公开(公告)日:2007-07-19
申请号:US10570054
申请日:2004-08-27
申请人: Mi Wang
发明人: Mi Wang
IPC分类号: H04N5/91
CPC分类号: G01F1/704 , A61B5/0536 , G01F1/64 , G01F1/712 , G01F1/74 , G01N27/02 , G01N27/20 , G01N27/24
摘要: Electrical impedance tomography (EII) data processing system, for acquiring and processing data from two-phase flows, comprising a dual-plane sensor, a plurality of digital signal processing modules configured in a data pipeline processing arrangement and a plurality of data acquisition subsystems in communication with a first one of said digital signal processing modules.
摘要翻译: 电阻抗层析成像(EII)数据处理系统,用于从两相流中获取和处理数据,包括双平面传感器,配置在数据流水线处理装置中的多个数字信号处理模块和多个数据采集子系统 与所述数字信号处理模块中的第一个通信。
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公开(公告)号:US07983853B2
公开(公告)日:2011-07-19
申请号:US10570054
申请日:2004-08-27
申请人: Mi Wang , Yunfeng Dai , Yixin Ma , Nigel Thomas Holliday
发明人: Mi Wang , Yunfeng Dai , Yixin Ma , Nigel Thomas Holliday
IPC分类号: A61B5/05
CPC分类号: G01F1/704 , A61B5/0536 , G01F1/64 , G01F1/712 , G01F1/74 , G01N27/02 , G01N27/20 , G01N27/24
摘要: Electrical impedance tomography (EIT) data processing system, for acquiring and processing data from two-phase flows, comprising a dual-plane sensor, a plurality of digital signal processing modules configured in a data pipeline processing arrangement and a plurality of data acquisition subsystems in communication with a first one of said digital signal processing modules.
摘要翻译: 电阻抗断层摄影(EIT)数据处理系统,用于从两相流中获取和处理数据,包括双平面传感器,配置在数据流水线处理装置中的多个数字信号处理模块和多个数据采集子系统 与所述数字信号处理模块中的第一个通信。
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公开(公告)号:US20120098549A1
公开(公告)日:2012-04-26
申请号:US13380010
申请日:2010-06-22
申请人: Mi Wang , Jiabin Jia
发明人: Mi Wang , Jiabin Jia
IPC分类号: G01R27/28
CPC分类号: G01N27/026
摘要: Electrical tomography apparatus comprises: a first electrode; a second electrode; and current driving means for driving an electrical current between the first electrode and the second electrode through a medium, wherein the current driving means comprises: a first transformer having a first winding and a second winding, the second winding having a first terminal and a second terminal; and means for generating an alternating current through the first winding so as to generate an alternating voltage between said first terminal and said second terminal. The apparatus further comprises connecting means arranged to connect the first terminal to the first electrode and the second terminal to the second electrode. Generation of the alternating current in the first winding results in generation of an alternating voltage between the first and second electrodes. In certain embodiments, a current sensing transformer provides an indication of current driven through the medium.
摘要翻译: 电子断层摄影装置包括:第一电极; 第二电极; 以及用于通过介质驱动第一电极和第二电极之间的电流的电流驱动装置,其中电流驱动装置包括:具有第一绕组和第二绕组的第一变压器,第二绕组具有第一端子和第二端子 终奌站; 以及用于产生通过第一绕组的交流电流以在所述第一端子和所述第二端子之间产生交流电压的装置。 该装置还包括连接装置,其被配置为将第一端子连接到第一电极,将第二端子连接到第二电极。 在第一绕组中产生交流电导致在第一和第二电极之间产生交流电压。 在某些实施例中,电流感测变压器提供通过介质驱动的电流的指示。
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公开(公告)号:US06940286B2
公开(公告)日:2005-09-06
申请号:US10250327
申请日:2001-12-28
申请人: Mi Wang , Wuliang Yin
发明人: Mi Wang , Wuliang Yin
CPC分类号: G01N27/24 , A61B5/0536 , G01N27/20
摘要: Methods and apparatus are provided for obtaining a representation of the distribution of electrical impedance within a multiphase flow with an electrically continuous or discontinuous principle flow contained within an electrically conductive solid ring electrode, including providing a plurality of mutually spaced electrical contacts mounted at the outside wall of the ring and electrically contacting with the ring, applying currents or voltages to the ring from the electrical contacts, generating a more homogeneous electric field distribution within the material, measuring voltage or current distribution alone the ring from other electrical contacts, relatively intensifying the imaging sensitivity at the central area of the sensing domain using a π/2 angle sensing strategy and reconstructing the representation of the impedance distribution using CG method with an error processing strategy.
摘要翻译: 提供了方法和装置,用于获得在多相流中的电阻抗分布的表示,其中电气连续或不连续的原理流包含在导电固体环电极内,包括提供安装在外壁上的多个相互间隔开的电触点 的环并与环电接触,从电触点向环施加电流或电压,在材料内产生更均匀的电场分布,单独测量来自其它电触点的环的电压或电流分布,相对增强成像 使用pi / 2角度感测策略在感测域的中心区域处的灵敏度,并且使用具有错误处理策略的CG方法来重构阻抗分布的表示。
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