A three-dimensional shape estimation approach for tracking of phase interfaces in sedimentation processes using electrical impedance tomography

2007 ◽  
Vol 18 (5) ◽  
pp. 1413-1424 ◽  
Author(s):  
O-P Tossavainen ◽  
M Vauhkonen ◽  
V Kolehmainen
Keyword(s):  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Three Dimensional ◽  
Shape Estimation ◽  
Impedance Tomography ◽  
Dimensional Shape ◽  
Three Dimensional Shape ◽  
Sedimentation Processes

Unscented Kalman filter approach to tracking a moving interfacial boundary in sedimentation processes using three-dimensional electrical impedance tomography

2009 ◽  
Vol 367 (1900) ◽  
pp. 3095-3120 ◽  
Author(s):  
Anil Kumar Khambampati ◽  
Ahmar Rashid ◽  
Umer Zeeshan Ijaz ◽  
Sin Kim ◽  
Manuchehr Soleimani ◽  
...  
Keyword(s):  
Kalman Filter ◽  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Unscented Kalman Filter ◽  
Phase Interface ◽  
Three Dimensional ◽  
Measurement Model ◽  
Impedance Tomography ◽  
Filter Approach ◽  
Sedimentation Processes

The monitoring of solid–fluid suspensions under the influence of gravity is widely used in industrial processes. By considering sedimentation layers with different electrical properties, non-invasive methods such as electrical impedance tomography (EIT) can be used to estimate the settling curves and velocities. In recent EIT studies, the problem of estimating the locations of phase interfaces and phase conductivities has been treated as a nonlinear state estimation problem and the extended Kalman filter (EKF) has been successfully applied. However, the EKF is based on a Gaussian assumption and requires a linearized measurement model. The linearization (or derivation of the Jacobian) is possible when there are no discontinuities in the system. Furthermore, having a complex phase interface representation makes derivation of the Jacobian a tedious task. Therefore, in this paper, we explore the unscented Kalman filter (UKF) as an alternative approach for estimating phase interfaces and conductivities in sedimentation processes. The UKF uses a nonlinear measurement model and is therefore more accurate. In order to justify the proposed approach, extensive numerical experiments have been performed and a comparative analysis with the EKF is provided.

Reconstruction of three-dimensional data for electrical impedance tomography

1992 ◽  
Vol 28 (11) ◽  
pp. 974-976 ◽  
Author(s):  
R. Gadd ◽  
F. Vinther ◽  
P.M. Record ◽  
P. Rolfe
Keyword(s):  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Three Dimensional ◽  
Impedance Tomography

scholarly journals Electrical-impedance-tomography imaging based on a new three-dimensional thorax model for assessing the extent of lung injury

AIP Advances ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 125310
Author(s):  
Xiuyan Li ◽  
Xiaojing Chen ◽  
Qi Wang ◽  
Jianming Wang ◽  
Xiaojie Duan ◽  
...  
Keyword(s):  
Lung Injury ◽  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Three Dimensional ◽  
Impedance Tomography ◽  
Tomography Imaging

Three-Dimensional Electrical Impedance Tomography: A Topology Optimization Approach

2008 ◽  
Vol 55 (2) ◽  
pp. 531-540 ◽  
Author(s):  
LuÍs Augusto Motta Mello ◽  
CÍcero Ribeiro de Lima ◽  
Marcelo Britto Passos Amato ◽  
Raul Gonzalez Lima ◽  
EmÍlio Carlos Nelli Silva
Keyword(s):  
Topology Optimization ◽  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Three Dimensional ◽  
Optimization Approach ◽  
Impedance Tomography

scholarly journals Three-dimensional electrical impedance tomography applied to a metal-walled filtration test platform

2004 ◽  
Vol 15 (11) ◽  
pp. 2263-2274 ◽  
Author(s):  
J L Davidson ◽  
L S Ruffino ◽  
D R Stephenson ◽  
R Mann ◽  
B D Grieve ◽  
...  
Keyword(s):  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Three Dimensional ◽  
Impedance Tomography ◽  
Test Platform

Electrical impedance tomography for three-dimensional drug release monitoring

2010 ◽  
Vol 41 (2) ◽  
pp. 407-413 ◽  
Author(s):  
Ville Rimpiläinen ◽  
Marko Kuosmanen ◽  
Jarkko Ketolainen ◽  
Kristiina Järvinen ◽  
Marko Vauhkonen ◽  
...  
Keyword(s):  
Drug Release ◽  
Electrical Impedance Tomography ◽  
Electrical Impedance ◽  
Three Dimensional ◽  
Impedance Tomography
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