Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 92, Issue 1-2, Pages 17-24Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0925-4005(03)00126-6
Keywords
review; electrical tomography; imaging; chemical applications; low-cost
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Electrical tomographic imaging has been applied to a broad range of chemical engineering processes, including: bubble columns, fluidised beds, pneumatic transport, liquid mixing, cyclonic separation, pressure filtration, liquid pipe-flow, polymerisation, emergency depressurisation, and paste extrusion. Two imaging approaches are described, electrical capacitance tomography (ECT) and electrical impedance tomography (EIT). To date, these have primarily been used as low-cost research tools for studying process dynamics, although they potentially may also act as sensors permitting on-line monitoring and control. Various aspects of design, operation and data processing are described, along with a review of applications in the literature. (C) 2003 Elsevier Science B.V. All rights reserved.
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