Tomography apparatus and method
US10371656B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2015 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Dec 17, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/026
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Tomography apparatus comprises: a plurality of electrodes arranged around a perimeter of a cross section of a sample volume for containing a liquid or mixed-phase sample, each electrode being arranged to be in electrical contact with a sample contained in the sample volume; measurement means adapted to perform a set of measurements, each measurement comprising driving a current between a first respective adjacent pair of said electrodes and measuring a voltage developed across a second respective adjacent pair of said electrodes; and processing means adapted to generate a tomogram indicative of sample conductivity over said cross section from said set of measurements. The processing means is arranged to calculate sample conductivity values of a portion of said cross section from said set of measurements and generate said tomogram from said calculated sample conductivity values of said portion using an assumption of symmetry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.