Monitoring an industrial hydrocyclone using frequency domain multiplexing electrical impedance tomography

Includes bibliographical references (leaves 69-73).This thesis describes the implementation of an Electrical Impedance Tomography (EIT) system using Frequency Domain Multiplexing (FDtvf) to monitor an industrial hydrocyclone. In order to utilise resources more effectively, to reduce negative environmental impact, to satisfy demands and legislations on product quality, there has been a rapid increase in research for optimisation and control of hydrocyclones, as industries consistently demand new and more cost effective ways of production. In an industrial setup, it is very difficult to determine the optimal operating point of a hydrocyclone. Tomography offers an exceptional opportunity to untangle the intricacies of the separation process structures without the intrusion of the sensing equipment or having to interfere with the process. The use of an Electrical Resistance Tomography (ERT) system with Time Domain Multiplexing (TDM) is one method used to try and solve this optimisation problem. At the University of Cape Town (UCT), an innovative Electrical Impedance Tomography (EIT) system using Frequency Domain Multiplexing (FDM) which is inherently faster than ERT TOM. This system increased the likelihood that a faster frame rate may be achieved for image reconstruction