Sensor Selection Three Dimensional Multi-stage as ECVT Further Development

    Puspita Hudanyanti, BS Thesis, Dept. of Physics, University of Indonesia, 2010 

    ECVT, developed from the two-dimensional electrical capacitance tomography (ECT), is a promising non-intrusive imaging technology that can provide real-time three-dimensional(3D) images of the sensing domain. Images are reconstructed from capacitance measurements acquired by electrodes placed on the outside boundary of the testing object. In medical imaging, small channel design and large number of channel ECVT was needed to provide sensitivity matrix distribution and improve the quality of image resolution. The 3D Multi-stage ECVT is one of the fundamental parts in high resolution ECVT development because it provides optimum image reconstruction. The principal of the 3D Multi-stage ECVT is simultaneously sensor activation. The finite element method was used to characterize the electric field profiles in the interest system. All the simulations and numerical computations are carried out using COMSOL Multiphysics and MATLAB 2007b. Results ECVT nonMulti-stage image reconstruction compared with the results of the Multi-stage image reconstruction.

    Keywords:  ECVT Multi-stage, Sensor Design, Sensitivity Matrix, COMSOL Multiphysics, MATLAB 2007b.