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。

公开(公告)号：US08508238B2

公开(公告)日：2013-08-13

申请号：US12855018

申请日：2010-08-12

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

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

IPC分类号： G01R27/02

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

摘要： An electrode array, a system and a method for reconstructing the distribution of electrical properties within a multi-material object. One embodiment includes electrodes arranged along a three-dimensional helical path to provide one or more helical arrays and circuitry to measure signals for calculating a conductivity or admittivity distribution representative of the interior of the structure. Image data may be obtained which is representative of the multi-material region.

摘要翻译： 电极阵列，系统和重建多材料物体内电特性分布的方法。 一个实施例包括沿着三维螺旋路径布置的电极，以提供一个或多个螺旋阵列和电路，以测量用于计算表示结构内部的导电性或导电性分布的信号。 可以获得代表多材料区域的图像数据。

公开(公告)号：US09568416B2

公开(公告)日：2017-02-14

申请号：US13334825

申请日：2011-12-22

申请人： Sameer Dinkar Vartak ,  Sandip Maity ,  Rajesh Veera Venkata Lakshmi Langoju ,  Abhijit Vishwas Patil

发明人： Sameer Dinkar Vartak ,  Sandip Maity ,  Rajesh Veera Venkata Lakshmi Langoju ,  Abhijit Vishwas Patil

IPC分类号： G01N21/25 ,  G01N21/552

CPC分类号： G01N21/253 ,  G01N21/553 ,  G01N21/554

摘要： A multimode detection system for detecting one or more samples is provided. The detection system comprises an electromagnetic radiation source, a reference arm, and a sample arm comprising a sensing substrate having a plurality of sample fields, wherein the sample fields are configured to receive the one or more samples. The system further comprises a phase difference generator configured to introduce pathlength differences in the reference arm, sample arm, or both, a spatial light modulator operatively coupled to the reference arm, sample arm, or both, wherein the spatial light modulator is configured to modulate incident radiation, resultant radiation, or both in the reference arm, sample arm, or both, and an imaging spectrometer configured to discriminate between two or more spatially separated sample en two or more spatially separated sample fields.

摘要翻译： 提供了用于检测一个或多个样本的多模式检测系统。 检测系统包括电磁辐射源，参考臂和包括具有多个样本场的感测衬底的样本臂，其中，所述采样场被配置为接收所述一个或多个采样。 该系统还包括相位差发生器，其被配置为在参考臂，采样臂或两者中引入路径长度差，可操作地耦合到参考臂，采样臂或二者的空间光调制器，其中空间光调制器被配置为调制 在参考臂，样本臂或两者中的入射辐射，合成辐射或两者，以及被配置为区分两个或更多个空间分离的样本之间的两个或更多个空间分离的样本场的成像光谱仪。

公开(公告)号：US20130049770A1

公开(公告)日：2013-02-28

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

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。

公开(公告)号：US08054094B1

公开(公告)日：2011-11-08

申请号：US12797653

申请日：2010-06-10

申请人： Rajesh Veera Venkata Lakshmi Langoju ,  Manoj Kumar Koyithitta Meethal ,  Debasish Mishra ,  Sekethraman Mahalingam

发明人： Rajesh Veera Venkata Lakshmi Langoju ,  Manoj Kumar Koyithitta Meethal ,  Debasish Mishra ,  Sekethraman Mahalingam

IPC分类号： G01R27/08

CPC分类号： G01N27/02 ,  A61B5/0536 ,  A61B5/7239 ,  G01N33/2823

摘要： A method of providing an image of an interior of a structure containing regions having different conductivities or admittivities. In one embodiment a series of electrical signal sets is applied to a series of electrodes, each signal set generating a rotating electric field. A measured set of electrical signals obtained from the electrodes are used to calculate a conductivity or admittivity distribution representative of the interior of the structure in a region about which the electrodes are positioned. The process of calculating the distribution includes defining a cost function, e.g., the energy function based on the distribution, and a forward model expressing the measured set of electrical signals as a function of the change in voltage values with respect to conductivity or admittivity and requiring that the partial derivative of the difference between the energy function and a function based on the forward model equal zero.

摘要翻译： 提供包含具有不同导电性或接触性的区域的结构的内部的图像的方法。 在一个实施例中，一系列电信号组被施加到一系列电极，每个信号组产生旋转电场。 使用从电极获得的测量的一组电信号来计算代表电极内部的结构的导电性或导电性分布。 计算分布的过程包括定义成本函数，例如基于分布的能量函数，以及表示所测量的电信号集合的正向模型，作为电压值相对于电导率或参考度的变化的函数，并且要求 能量函数与基于正向模型的函数之间的差异的偏导数等于零。

公开(公告)号：US20130165329A1

公开(公告)日：2013-06-27

申请号：US13334825

申请日：2011-12-22

申请人： Sameer Dinkar Vartak ,  Sandip Maity ,  Rajesh Veera Venkata Lakshmi Langoju ,  Abhijit Vishwas Patil

发明人： Sameer Dinkar Vartak ,  Sandip Maity ,  Rajesh Veera Venkata Lakshmi Langoju ,  Abhijit Vishwas Patil

IPC分类号： C40B30/04 ,  C40B30/00 ,  C40B60/12 ,  G01N33/53

CPC分类号： G01N21/253 ,  G01N21/553 ,  G01N21/554

摘要： A multimode detection system for detecting one or more samples is provided. The detection system comprises an electromagnetic radiation source, a reference arm, and a sample arm comprising a sensing substrate having a plurality of sample fields, wherein the sample fields are configured to receive the one or more samples. The system further comprises a phase difference generator configured to introduce pathlength differences in the reference arm, sample arm, or both, a spatial light modulator operatively coupled to the reference arm, sample arm, or both, wherein the spatial light modulator is configured to modulate incident radiation, resultant radiation, or both in the reference arm, sample arm, or both, and an imaging spectrometer configured to discriminate between two or more spatially separated sample en two or more spatially separated sample fields.

摘要翻译： 提供了用于检测一个或多个样本的多模式检测系统。 检测系统包括电磁辐射源，参考臂和包括具有多个样本场的感测衬底的样本臂，其中，所述采样场被配置为接收所述一个或多个采样。 该系统还包括相位差发生器，其被配置为在参考臂，采样臂或两者中引入路径长度差，可操作地耦合到参考臂，采样臂或二者的空间光调制器，其中空间光调制器被配置为调制 在参考臂，样本臂或两者中的入射辐射，合成辐射或两者，以及被配置为区分两个或更多个空间分离的样本之间的两个或更多个空间分离的样本场的成像光谱仪。

公开(公告)号：US20120038368A1

公开(公告)日：2012-02-16

申请号：US12855018

申请日：2010-08-12

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

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

IPC分类号： G01R27/02

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

摘要： An electrode array, a system and a method for reconstructing the distribution of electrical properties within a multi-material object. One embodiment includes electrodes arranged along a three-dimensional helical path to provide one or more helical arrays and circuitry to measure signals for calculating a conductivity or admittivity distribution representative of the interior of the structure. Image data may be obtained which is representative of the multi-material region.

摘要翻译： 电极阵列，系统和重建多材料物体内电特性分布的方法。 一个实施例包括沿着三维螺旋路径布置的电极，以提供一个或多个螺旋阵列和电路，以测量用于计算表示结构内部的导电性或导电性分布的信号。 可以获得代表多材料区域的图像数据。