Industrial process visualization, combustion volume imaging, and multi-phase flow measurements and imaging are some of Electrical Capacitance Volume Tomography (ECVT) imaging system applications.

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ECVT is an industrial imaging tool applicable to energy, aerospace, automotive, pharmaceutical, process engineering, CFD verification, and academics and research.


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Tech4Imaging LLC is led by world renowned scientists with interdisciplinary backgrounds such as imaging technologies, reconstruction algorithms, particle technologies, multiphase flows, and reaction engineering. Tech4Imaging LLC is acclaimed for the invention and development of the ECVT system. Tech4Imaging LLC holds exclusive international patent rights for the ECVT system, including 3-D sensor design and image reconstruction.

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News & Publications

Electrical Capacitance Volume Tomography

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Abstract: A dynamic volume imaging based on the principle of electrical capacitance tomography (ECT), namely, electrical capacitance volume tomography (ECVT), has been developed in this study. The technique generates, from the measured capacitance, a whole volumetric image of the region enclosed by the geometrically three-dimensional capacitance sensor. This development enables a real-time, 3-D imaging of a moving object or a real-time volume imaging (4-D) to be realized. Moreover, it allows total interrogation of the whole volume within the domain (vessel or…

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A Multimodal Tomography System Based on ECT Sensors

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Abstract: A new noninvasive system for multimodal electrical tomography based on electrical capacitance tomography (ECT) sensor hardware is proposed. Quasistatic electromagnetic fields are produced by ECT sensors and used for interrogating the sensing domain. The new system is noninvasive and based on capacitance measurements for permittivity and power balance measurements for conductivity (impedance) imaging. A dual sensitivity map of perturbations in permittivity and conductivity is constructed. The measured data along with the sensitivity matrix are used for the actual image reconstruction….

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Adaptive Electrical Capacitance Volume Tomography

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Abstract—Electrical Capacitance Volume Tomography (ECVT) has shown to be an effective low-cost and high-speed imaging technique suitable for many applications, including 3D reconstruction of multiphase flow systems. In this paper, we introduce the concept of adaptive ECVT based upon the combination of a large number of small individual sensor segments to comprise synthetic capacitance “plates” of different (and possibly noncontiguous) shapes while still satisfying a minimum plate area criterion set by a given SNR. The response from different segments is…

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