On the Use of a Rotatable ECT Sensor to Investigate Dense Phase Flow: A Feasibility Study

Wajman, Radosław; Banasiak, Robert; Babout, Laurent

doi:10.3390/s20174854

Cited by 19 publications

(11 citation statements)

References 32 publications

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“…Different strategies were also employed to increase the number of electrode pair measurements to improve image resolution in the 2D or the 3D space, especially for ECT. This includes the development of rotatable or 3D sensors [ 18 , 19 , 20 ]. Comprehensive reviews for ECT sensors in circulating fluidized beds can be found in [ 21 , 22 ], and reviews for ERT sensors in chemical engineering can be found in [ 23 ].…”

Section: Electrical Resistance and Electrical Capacitance Tomographymentioning

confidence: 99%

A Review on Fast Tomographic Imaging Techniques and Their Potential Application in Industrial Process Control

Hampel

Babout

Banasiak

et al. 2022

Sensors

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With the ongoing digitalization of industry, imaging sensors are becoming increasingly important for industrial process control. In addition to direct imaging techniques such as those provided by video or infrared cameras, tomographic sensors are of interest in the process industry where harsh process conditions and opaque fluids require non-intrusive and non-optical sensing techniques. Because most tomographic sensors rely on complex and often time-multiplexed excitation and measurement schemes and require computationally intensive image reconstruction, their application in the control of highly dynamic processes is often hindered. This article provides an overview of the current state of the art in fast process tomography and its potential for use in industry.

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Section: Electrical Resistance and Electrical Capacitance Tomographymentioning

confidence: 99%

A Review on Fast Tomographic Imaging Techniques and Their Potential Application in Industrial Process Control

Hampel

Babout

Banasiak

et al. 2022

Sensors

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“…If, in addition, the required probability level is changed, improvements in imaging accuracy can be achieved. The image reconstruction problem in electrical impedance tomography involves taking measurements with a set of sensors and creating a reconstruction based on these measurements [1][2][3][4][5][6][7][8][9][10][11]. It is worth mentioning that many methods can be used to solve optimization problems that are part of a particular system [12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Investigation of flood embankment seepage using logistic regression with ICA

Kozłowski

Król²,

Niderla

et al. 2022

J. Phys.: Conf. Ser.

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This article analyzes the application of logistic regression with the use of ICA to detect leakages and leakages in flood embankments. As a result of the study, a model analysis was carried out where electrical impedance tomography tests were performed for one and for two rows of electrodes. For the results obtained, it was possible to verify the evaluation of the usefulness of the algorithms in the reconstruction of images derived from electrical impedance tomography. The proposed solution is a method that is non-invasive, and thus the embankment does not have to be destroyed for testing. Additionally, it should be emphasised that it is suitable for spatial imaging. The presented solution is a non-invasive method for assessing the structure of embankments, which is well suited for spatial imaging. The implemented algorithm shows promise in image reconstruction.

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“…Many imaging techniques for the morphology evaluation of crystals use microscopic samples in the offline system for particle characterization [ 9 ]. However, online PAT imaging techniques, such as Electrical Capacitance Tomography (ECT) [ 10 , 11 , 12 , 13 ] and ultrasound tomography [ 14 , 15 ], have proved to be very useful tomographic techniques to visualize the fluids and dense phases or separate the solutions depending on concentrations.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Evaluations with 2d Electrical Resistance Tomography in the Low-Conductivity Solutions Using 3d-Printed Phantoms and Sucrose Crystal Agglomerate Assessments

Rao

Sattar

Wajman

et al. 2021

Sensors

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Crystallization is a significant procedure in the manufacturing of many pharmaceutical and solid food products. In-situ electrical resistance tomography (ERT) is a novel process analytical tool (PAT) to provide a cheap and quick way to test, visualize, and evaluate the progress of crystallization processes. In this work, the spatial accuracy of the nonconductive phantoms in low-conductivity solutions was evaluated. Gauss–Newton, linear back projection, and iterative total variation reconstruction algorithms were used to compare the phantom reconstructions for tap water, industrial-grade saturated sucrose solution, and demineralized water. A cylindrical phantom measuring 10 mm in diameter and a cross-section area of 1.5% of the total beaker area was detected at the center of the beaker. Two phantoms with a 10-mm diameter were visualized separately in noncentral locations. The quantitative evaluations were done for the phantoms with radii ranging from 10 mm to 50 mm in demineralized water. Multiple factors, such as ERT device and sensor development, Finite Element Model (FEM) mesh density and simulations, image reconstruction algorithms, number of iterations, segmentation methods, and morphological image processing methods, were discussed and analyzed to achieve spatial accuracy. The development of ERT imaging modality for the purpose of monitoring crystallization in low-conductivity solutions was performed satisfactorily.

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On the Use of a Rotatable ECT Sensor to Investigate Dense Phase Flow: A Feasibility Study

Cited by 19 publications

References 32 publications

A Review on Fast Tomographic Imaging Techniques and Their Potential Application in Industrial Process Control

A Review on Fast Tomographic Imaging Techniques and Their Potential Application in Industrial Process Control

Investigation of flood embankment seepage using logistic regression with ICA

Quantitative Evaluations with 2d Electrical Resistance Tomography in the Low-Conductivity Solutions Using 3d-Printed Phantoms and Sucrose Crystal Agglomerate Assessments

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