Practical Implementation of Electrical Tomography in a Distributed System to Examine the Condition of Objects

Rymarczyk, Tomasz; Tchórzewski, Paweł; Adamkiewicz, Przemysław; Duda, Karol; Jakub, Szumowski; Sikora, Jan

doi:10.1109/jsen.2017.2746748

Cited by 52 publications

(29 citation statements)

References 24 publications

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“…The first Electrical Capacitance Tomography (ECT) systems [120,113,158,79], Electrical Resistance Tomography (ERT) systems [33,32,147,127] as well as the Magnetic Induction (MI) [90,119] allowed to obtain only the rough evaluation of the process state because the information encoded in measurement data represents merely the fragment of the process which additionally was approximated into the cross-section surface through the sensor (2D ECT) [60,163,78,128,135]. This kind of imaging, however still commonly applied in many industrial applications [50,66,67,104,75,65], occurs to be insufficient from the process control point of view.…”

Section: Electrical Tomographymentioning

confidence: 99%

Computer methods for non-invasive measurement and control of two-phase flows: a review study

Wajman

2019

ITC

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Nowadays, the application of advanced technologies in modern production systems is the main trend of development and technological progress in many industrial sectors. It is due to the still growing trends of energy-saving and production quality enhancement. Wherever in the production process the phase mixture is transported and it is not optimal or not economic, there is a need to develop a system which would be able to prevent any construction disaster, unexpected production line stopping or situation where for reasons of bad flow parameters, the final product is defective. This paper studies various sensors, measurement techniques and computer methods for signal processing and analysis to diagnose and control two-phase flows. Due to the possibility that the invasive measurement disturbs the process and changes it parameters and behavior especially in the location just after the measurement point and simultaneously does not provide any information about these changes it is unreliable for the diagnosis or control. Therefore, the non-invasive techniques commonly used for measurement of flows parameters are described. Depending on the industrial demands many of applications examples for non-invasive two-phase flows measurement and monitoring are given. This description for identifying the flow parameters is divided into features categories of this phenomena as void fraction distribution, velocity profile and flow regime. However, from these methods the high accuracy and short processing time is expected. The continued observation and monitoring of the process abnormalities can provide valuable information about its dynamic state and allow for real-time and automatic monitoring and control. Therefore, the development of advanced process control is one of the most important challenges to keep the flow regime on the given level and for instant and long-term energy saving, quality improvement.

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Section: Electrical Tomographymentioning

confidence: 99%

Computer methods for non-invasive measurement and control of two-phase flows: a review study

Wajman

2019

ITC

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“…Building porous materials (eg bricks or concrete), both natural and made, has pores (like a sponge). The data collection system collects the measured voltage from the electrode and then processes the data [1][2][3][5][6][7][8][9][10][11][13][14][15][28][29][30][31][32][33]. Figure 1 presents the model of a hybrid tomography system.…”

Section: Introductionmentioning

confidence: 99%

A hybrid tomography for assessing the moisture level of walls and building condition

Rymarczyk

Michal²,

Tchórzewski³

et al. 2019

ELECTROTECHNICAL REVIEW

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The article presents an innovative solution for assessing the moisture level of walls and building condition. The use of modern tomographic techniques allows for a non-destructive and very precise spatial assessment of the humidity level. Prepared constructions contain special electrodes for measuring humidity in a brick wall. The proposed application solves the inverse problem in electrical tomography. A level set method was used to reconstruct the images.Streszczenie. W artykule przedstawiono innowacyjne rozwiązanie do oceny poziomu wilgotności ścian i stanu budynku. Zastosowanie nowoczesnych technik tomograficznych pozwala na nieniszczącą i bardzo precyzyjną ocenę przestrzenną poziomu wilgotności. Przygotowane konstrukcje zawierają specjalne elektrody do pomiaru wilgotności w ścianie z cegły. Proponowane zastosowanie rozwiązuje problem odwrotny w tomografii elektrycznej. Do rekonstrukcji obrazów użyto metody zbiorów poziomicowych (Tomografia hybrydowa do oceny poziomu wilgotności ścian i stanu budynku).

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“…One of the means of ensuring the safety of flood-endangered areas near the flotation tailings landfills and rivers is to raise the flood embankments [18]. Considering the insufficient filtration capacity of the embankment, the high water level may cause leaks, which results in partial or complete destruction of the hydrotechnical building [19].…”

Section: Introductionmentioning

confidence: 99%

Application of neural reconstruction of tomographic images in the problem of reliability of flood protection facilities

Rymarczyk¹,

Kłosowski²

2018

Eksploatacja i Niezawodność – Maintenance and Reliability

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Article citation info: (*) Tekst artykułu w polskiej wersji językowej dostępny w elektronicznym wydaniu kwartalnika na stronie www.ein.org.pl IntroductionThe exploitation of flood defences -such as dams and flood banks -is of key value that heavily impacts the security of people, animals and plants that lay within the area of the object. There are two main types of issues that may appear as a result of improper exploitation of such pieces of infrastructure. The first threat is a physical damage of the embankment, which may result in a breach. The other is the leakage of such a structure -in case of reservoirs that contain fluid chemical compound waste it might lead to a vast range of contamination.

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Practical Implementation of Electrical Tomography in a Distributed System to Examine the Condition of Objects

Cited by 52 publications

References 24 publications

Computer methods for non-invasive measurement and control of two-phase flows: a review study

Computer methods for non-invasive measurement and control of two-phase flows: a review study

A hybrid tomography for assessing the moisture level of walls and building condition

Application of neural reconstruction of tomographic images in the problem of reliability of flood protection facilities

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