Comparisons of sensor geometries for electrical capacitance volume tomography

Marlin Ramadhan Baidillah, Muhammad Mukhlisin, Warsito Purwo Taruno

    Research output: Contribution to journalArticle

    Abstract

    Proper electrode design to generate uniform sensitivity distribution is crucial for robust volumetric imaging based on electrical capacitance volume tomography (ECVT). Certain designs commonly used in electrical capacitance tomography (ECT), such as rectangular electrodes, form so-called "dead zones", i.e., regions with no variation in sensitivity among capacitance measurements between electrode pairs, making it impossible to differentiate the permittivity within a given region. For robust volumetric imaging, an electrode design that generates a sensitivity distribution that provides variation along all three directions with equal strength is required. In this work, several ECVT sensor electrode designs with various geometrical shapes were considered, and their performance in volumetric image reconstruction was evaluated based on experimental data. The electrode designs included regular square, triangular, trapezoidal and hexagonal shapes based on a 32-electrode capacitance sensor arranged with 8 electrodes along the radial direction and 4 electrodes along the axial direction. From the reconstruction results using experimental data, the horizontally aligned hexagonal electrode showed the best consistency in terms of the shape of the object that was reconstructed.

    Original languageEnglish
    Pages (from-to)4447-4457
    Number of pages11
    JournalInternational Journal of Innovative Computing, Information and Control
    Volume9
    Issue number11
    Publication statusPublished - Nov 2013

    Fingerprint

    Capacitance
    Tomography
    Electrode
    Sensor
    Electrodes
    Geometry
    Sensors
    Hexagon
    Imaging
    Experimental Data
    Electrical Capacitance Tomography
    Imaging techniques
    Dead Zone
    Capacitance measurement
    Permittivity
    Image Reconstruction
    Differentiate
    Image reconstruction
    Triangular
    Design

    Keywords

    • 3D capacitive imaging
    • ECT
    • ECVT
    • Sensor design
    • Volumetric imaging

    ASJC Scopus subject areas

    • Computational Theory and Mathematics
    • Information Systems
    • Software
    • Theoretical Computer Science

    Cite this

    Comparisons of sensor geometries for electrical capacitance volume tomography. / Baidillah, Marlin Ramadhan; Mukhlisin, Muhammad; Taruno, Warsito Purwo.

    In: International Journal of Innovative Computing, Information and Control, Vol. 9, No. 11, 11.2013, p. 4447-4457.

    Research output: Contribution to journalArticle

    Baidillah, Marlin Ramadhan ; Mukhlisin, Muhammad ; Taruno, Warsito Purwo. / Comparisons of sensor geometries for electrical capacitance volume tomography. In: International Journal of Innovative Computing, Information and Control. 2013 ; Vol. 9, No. 11. pp. 4447-4457.
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