Trevor A. York

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This paper describes research into determining the 3D position of a flow follower in a confined space. The flow follower is able to transmit ultrasonic signals to receivers that are fixed to the wall of the vessel. A key challenge is to accurately determine the location of the flow follower. Transducers must be small, low power and low cost. The present(More)
The present status of electrical impedance tomography (EIT) is such that many successful laboratory based studies and pilot plant demonstrators are generating interest in developing the technology. However, while the EIT problem is inherently 3D, many studies make 2D assumptions in order to simplify the problem. Proportionately less work has been carried(More)
In order to apply electrical impedance (EIT), and other modalities, against industrial unit operations it is requisite to employ a sensor architecture which is compliant with the subject process such that it will not detrimentally effect its efficiency nor the integrity of the associated vessel structure. Traditionally symmetrical electrode architectures(More)
Reconstructed images produced using Electrical Impedance Tomography (EIT) are notorious for their poor spatial resolution. This is largely due to the ill-posed nature of the EIT problem. Much effort has been made in order to improve on spatial resolution of reconstructed images. One of the more direct approaches is by improving the amount of information(More)
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