System and method for performing electrical impedance tomography
AssigneeGeneral Electric Company
InventorsSakethraman Mahalingam, Manoj Kumar Koyithitta Meethal, Prafull Sharma, Rajesh Veera Venkata Lakshmi Langoju, Wrichik Basu, Parama Ghoshal
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Abstract
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.
Claims20
A method for generating data for reconstructing the distribution of electrical properties within a multi-material object comprising:
- configuring a plurality of electrodes along a three-dimensional helical path to provide a three dimensional array of electrodes about the multi-material object;
- applying a set of signal patterns for input to the electrodes and obtaining, in response to application of the set of signal patterns, a measured set of electrical signals from the electrodes;
- calculating, with the measured set of electrical signals, a three-dimensional conductivity or admittivity distribution representative of an interior of the object in a region of the object about which the electrodes are positioned;
- and
- determining three-dimensional image data representative of the multi-material region in the object including two or more regions having different conductivities or admittivities.
A method for generating data for reconstructing the distribution of electrical properties within a multi-material object comprising:
- configuring a plurality of electrodes along a three-dimensional helical path to provide a three dimensional array of electrodes about the multi-material object;
- applying a set of signal patterns for input to the electrodes and obtaining, in response to application of the set of signal patterns, a measured set of electrical signals from the electrodes wherein
- the step of configuring the plurality of electrodes includes positioning the electrodes along a series of three-dimensional helical paths to provide p helical arrays each comprising a sequence of r electrodes;
- and
- the step of applying the set of signal patterns for input to the electrodes includes, when applying the set of signal patterns to the electrodes at a given time, applying a different signal pattern to different ones of the electrodes.
A method for generating data for reconstructing the distribution of electrical properties within a multi-material object comprising:
- configuring a plurality of electrodes along a three-dimensional helical path to provide a three dimensional array of electrodes about the multi-material object;
- applying a set of signal patterns for input to the electrodes and obtaining, in response to application of the set of signal patterns, a measured set of electrical signals from the electrodes;
- and
- calculating, with the measured set of electrical signals, a three-dimensional conductivity or admittivity distribution representative of an interior of the object in a region of the object about which the electrodes are positioned.
Dependencies are inferred from the claim text.