Electrical capacitance tomography (ECT) is a relatively mature non-invasive imaging technique that attempts to map dielectric permittivity of materials.ECT has become promising monitoring in industrial process especially fast flow visualization.One the most challenging tasks further development ECT for real applications are computational aspects imaging.Recently, 3D gained interest because its potential generate volumetric images.Computational time image reconstruction makes it more...

The industrial diagnostic and monitoring systems still require new methods offering possibilities of non-invasive observation analysis the two-phase gas–liquid mixture flows. This paper demonstrates a measurement system dedicated for void fraction calculation flow structure identification in vertical horizontal pipelines. study metrological validation designed three-dimensional capacitance tomography is discussed here. research includes 3D ECT sensor optimization process, evaluation image...

Tomographic techniques have been widely accepted as a valuable tool for process control and monitoring. The classic tomographic approach is to reconstruct 2D image of cross section. However, most processes take place in 3D space. Effective imaging space can be achieved using reconstruction two ways. first (called 2.5D by the authors) use few independent images interpolate them into image. This method has used medical applications tomography many years already. second subject this paper...

Electrical Capacitance Tomography (ECT) is a noninvasive and non-destructive imaging technique that uses electrical capacitance measurements at the periphery of an object to generate map dielectric permittivity object.This visualization method relatively mature industrial process tomography technique, especially in 2D mode.Volumetric ECT new poses major computational challenges image reconstruction sensor design.This paper shows nonlinear for 3D based on validated forward model.The finite...

For image reconstruction in electrical capacitance tomography (ECT) various implementations of the linear backprojection (LBP) algorithm and iterative techniques have become standard most applications. Most suffer from a smoothing effect lack accuracy due to their smooth sensitivity maps so-called `soft' field problem ECT, respectively. Therefore it is usually difficult reconstruct objects with sharp contours. In present paper novel model based on finite-element-method (FEM) calculation...

Purpose – The purpose of this paper is to introduce a significant modification the sensitivity maps calculation process using electric field distribution analysis. A matrix typically crucial part deterministic image reconstruction in three-dimensional capacitance tomography (3D ECT) and strictly decides about final quality. Commonly used computation methods mostly provide acceptable results additionally allow perform recalculation according changing permittivity distribution....

This paper presents the feasibility study of dynamic flow measurements using concept a rotatable electrical capacitance tomography (ECT) sensor. The experiment considered horizontal in pneumatic conveying loop case dense phase flow. Slugs and settled layers were imaged comparison was made between no rotation or sensor for two image reconstruction schemas: linear back projection (LBP) non-linear iterative projection. Data evaluated both qualitatively quantitatively by estimating solids...

Industrial process monitoring is an important field of research where different chemical processes are monitored and controlled. In this work, electrical impedance spectroscopy (EIS) was used to analyze antisolvent based crystallization sucrose solutions. The phase spectra were recorded for four known concentrations in water, each case, predetermined amounts ethanol added. As a result, sixteen solutions involving water ratios analyzed. Significant differences observed the magnitude frequency...

. Electrodes at the surface of volume apply electrical potential into surrounding area and emergent charge is measured boundary. The data then used in an electrostatic model to determine dielectric permittivity properties object. Three-dimensional ECT imaging will become important tool for industrial process monitoring future

This paper presents the software for comprehensive processing and visualization of 2D 3D electrical tomography data. The system name as TomoKIS Studio has been developed in frame DENIDIA international research project improved Polish Ministry Science Higher Education Project no 4664/B/T02/2010/38. is worldwide unique because it simultaneously integrates process tomographic data acquisition, numerical FEM modeling images reconstruction. can be adapted to specific industrial applications,...

In the present research work, an electrical resistance tomography (ERT) system is utilized as a means for real-time fault detection and diagnosis (FDD) during reactive crystallization process. The calcium carbonate part of carbon capture utilization scheme where process monitoring malfunction diagnostics strategies are presented. graphical logic representation tree analysis methodology used to develop failure states. measurement consistency due use single electrode from set ERT electrodes...

In this paper the new intelligent system for two-phase flows diagnosis and control is presented. The authors developed a fuzzy inference two phase recognition based on raw 3D ECT data statistical analysis classification which identify flow structure in real-time mode. non-invasive three-dimensional monitoring possible to conduct even non-transparent non-accessible parts of pipeline. Presented also equipped with gas-liquid installation module includes feedback information from module. working...

Synthesis of the crystals is a very important step in manufacturing many solid food products and pharmaceutical products. Electrical Resistance Tomography (ERT) provides an in-situ modality observation progress process batch reactor crystallization. Lowering conductivity non-ionic solutions such as sucrose solution poses challenges quantitative evaluation. In this work, 2D electrical resistance tomography (2D-ERT) was implemented laboratory-based to observe circular, hollow static sugar...

Crystallization is a significant procedure in the manufacturing of many pharmaceutical and solid food products. In-situ electrical resistance tomography (ERT) novel process analytical tool (PAT) to provide cheap quick way test, visualize, evaluate progress crystallization processes. In this work, spatial accuracy nonconductive phantoms low-conductivity solutions was evaluated. Gauss–Newton, linear back projection, iterative total variation reconstruction algorithms were used compare phantom...

In the article there is a description of FCM based algorithm for determination similarity level current investigated by capacitance process tomography methods to previously prepared pattern flows. Additionally readers can find raw tomographic data collection method used, preparation most significant features vector routine and basic theoretical issues. Streszczenie. Artykul zawiera opis algorytmu opartego na klasyfikacji rozmytej mającego celu wyznaczenie wartości podobienstwa badanych za...

Purpose Crystallization is the process widely used for components separation and solids purification. The systems crystallization evaluation applied so far, involve numerous non-invasive tomographic measurement techniques which suffers from some reported problems. purpose of this paper to show abilities three-dimensional Electrical Capacitance Tomography (3D ECT) in context non-intrusive visualization processes. Multiple aspects problems ECT imaging, as well computer model design work with...

This paper presents a study on applying machine learning algorithms for classification of two-phase flow regime and its internal structures.This research results may be used in adjusting optimal control air pressure liquid rate to pipeline process vessels.To achieve this goal the model an artificial neural network was built trained using measurement data acquired from 3D Electrical Capacitance Tomography (ECT) system.Because set collected build AI insufficient, new approach dedicated...

The project aimed to develop and implement algorithms diagnose the phase separation process based on digital images. image processing techniques various numerical methods for interpolation integration were used identify state. swirl’s volume diameters at its three different levels can be determined on-line. A consistent diagnostic signal is produced by control unit. program was written in Python using OpenCV library that allows analysis of article presents developed procedure provides...

The paper presents an intelligent module to control dynamic two-phase gas–liquid mixtures pipelines flow processes. is because it uses the algorithm based on AI methods, namely, fuzzy logic inference, build regulator concept. developed modification has allowed design and implement black-box type regulator. Therefore, not required determine any of complicated computer models rig, which unfortunately necessary when using classic regulators. inputs are four linguistic variables that decomposed...

Macierz wrażliwości jest głównym czynnikiem wpływającym na finalną jakość wyników procesu rekonstrukcji obrazów dla trójwymiarowej elektrycznej tomografii pojemnościowej 3D ECT. Dotychczasowe metody ich wyznaczania dają w większości przypadków dobre wyniki i umożliwiają dodatkowo wykonanie iteracyjnej aktualizacji map wrażliwości, dostosowując naturę do zmieniającego się wraz z procesem symulowanego rozkładu pola elektrycznego. W ramach niniejszego artykułu autorzy przedstawią własną istotną...