Three-dimensional nonstationary electrical impedance tomography with a single electrode layer

In a tubular vessel equipping a single electrode layer, true three-dimensional electrical impedance tomography imaging is generally not considered possible. In a nonstationary setting, however, the accumulation of information over an epoch can possibly allow for 3D imaging if appropriate evolution models are available. Such an evolution model is the stochastic convection-diffusion model if the flow field is such that the main flow is along the tube. A single electrode layer sensor would obviously be much cheaper and could be installed in locations in which a multi-layer sensor possibly could not be. In this paper, we assess this possibility both computationally and experimentally. The results show that a single electrode layer system is a potential technique in nonstationary estimation.