Electrical impedance tomography
First Claim
1. A method of obtaining a representation of the distribution of electrical impedance within material contained within a containing wall, the method comprising:
- providing a plurality of mutually spaced electrodes mounted at spaced locations of the wall, the electrodes being 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, sequentially, an input electrical signal which, while applied to any one of the electrodes, causes respective output electrical signals to be generated between the electrical reference ground and each other one of the electrodes;
measuring said output electrical signals generated between the electrical reference ground and each other one of the electrodes; and
processing the resulting measured data to provide a representation of the distribution, within said material, of its electrical impedance.
2 Assignments
0 Petitions
Accused Products
Abstract
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.
82 Citations
17 Claims
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1. A method of obtaining a representation of the distribution of electrical impedance within material contained within a containing wall, the method comprising:
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providing a plurality of mutually spaced electrodes mounted at spaced locations of the wall, the electrodes being 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, sequentially, an input electrical signal which, while applied to any one of the electrodes, causes respective output electrical signals to be generated between the electrical reference ground and each other one of the electrodes; measuring said output electrical signals generated between the electrical reference ground and each other one of the electrodes; and processing the resulting measured data to provide a representation of the distribution, within said material, of its electrical impedance. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Apparatus for obtaining a representation of the distribution of electrical impedance within a body of material, the apparatus comprising:
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a container having a containing wall for containing the material; a plurality of 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; means for generating, and for applying between an electrical reference ground and each electrode, sequentially, an input signal which, while applied to any one of the electrodes, causes respective output electrical signals to be generated between the electrical reference ground and each other one of the electrodes; means for measuring the output electrical signals generated between the electrical reference ground and each other one of the electrodes; and means for processing the resulting measured data and providing a representation of the distribution, within said material, of its electrical impedance. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification