Technology
There are numerous situations in different kinds of processes in the mining, food processing or pulp and paper industries, for example, in which there is a need to investigate the properties of the mass flow in a pipeline or some container. The object of the investigation can be, for example, the distribution and size of bubbles in a liquid or the mixing of an additional substance supplied into the flow.
Electrical impedance tomography is an imaging modality in which electrical measurements are made by electrodes placed on the surface of, or within the target volume and the electrical conductivity distribution of the target is determined based on the measurements. Spatial variations in the conductivity that are revealed by impedance tomography indicate variations in the quality of the flowing mass and can thus give information for example about non-dissolved gas or other non-uniformities of the mass.
Compared to commonly used point measurements, tomographic imaging techniques are sensitive for the whole target volume. Therefore it catches all the variations, no matter where they are located in the target volume. Point measurements often miss valuable information due to the spatial insensitivity of the measurement procedure.
For more information, see our brochure in PDF, or check out the animation that visualizes what we can do:
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