Application Study on Bubble Detection in a Metallic Bubble Column Using Electrical Resistance Tomography

2014 ◽  
Vol 69 (8) ◽  
Author(s):  
Suzanna Ridzuan Aw ◽  
Ruzairi Abdul Rahim ◽  
Mohd Hafiz Fazalul Rahiman ◽  
Fazlul Rahman Mohd Yunus ◽  
Naizatul Shima Fadzil ◽  
...  
Keyword(s):  
Electrical Resistance ◽  
Bubble Column ◽  
Low Cost ◽  
Radiation Hazard ◽  
Process Equipment ◽  
Electrical Resistance Tomography ◽  
Application Study ◽  
Bubble Detection ◽  
Fundamental Process ◽  
Metal Wall

Electrical resistance tomography (ERT) has been chosen as the field of study because of its advantages of being low cost, suitable for various kinds and sizes of pipes and vessels, having no radiation hazard, and being non-intrusive. In the development of ERT systems for metallic bubble column, prior knowledge of the fundamental process of the ERT system whilst improving the design and operation of the process equipment is essential. The fabricated electrodes need to be electrically insulated from the metal wall. Besides that, conducting boundary strategy is implemented to overcome the grounding effect of the metallic vessel.

scholarly journals Limited Angle Electrical Resistance Tomography in Wastewater Monitoring

Sensors ◽  
2020 ◽  
Vol 20 (7) ◽  
pp. 1899 ◽  
Author(s):  
Chenning Wu ◽  
Martin Hutton ◽  
Manuchehr Soleimani
Keyword(s):  
Electrical Resistance ◽  
High Speed ◽  
Low Cost ◽  
Radiation Hazard ◽  
Reconstruction Method ◽  
Limited Data ◽  
Electrical Resistance Tomography ◽  
Limited Region ◽  
Image Reconstruction Method ◽  
High Speed Design

Electrical resistance tomography (ERT) has been investigated in monitoring conductive flows due to its high speed, non-intrusive and no radiation hazard advantages. Recently, we have developed an ERT system for the novel application of smart wastewater metering. The dedicated low cost and high-speed design of the reported ERT device allows for imaging pipes with different flow constituents and monitoring the sewer networks. This work extends the capability of such a system to work with partially filled lateral pipes where the incomplete data issue arises due to the electrodes losing contact with the conductive medium. Although the ERT for such a limited region has been developed for many years, there is no study on imaging content within these limited regions. For wastewater monitoring, this means imaging the wastewater and solid inclusions at the same time. This paper has presented a modified ERT system that has the capacity to image inclusions within the conductive region using limited data. We have adjusted the ERT hardware to register the information of the non-contact electrodes and hence the valid measurements. A limited region image reconstruction method based on Jacobian reformulation is applied to gain robustness when it comes to inclusion recovery in limited data ERT. Both simulation and experimental results have demonstrated an enhanced performance brought by the limited region method in comparison to the global reconstruction.

Simulation Study of Tuber Electrical Resistance Tomography System

2014 ◽  
Vol 577 ◽  
pp. 705-708
Author(s):  
Xiang Deng ◽  
Lu Chen ◽  
Zhao Dong ◽  
Hao Liu
Keyword(s):  
Electrical Resistance ◽  
Low Cost ◽  
Tuber Growth ◽  
Electrical Resistance Tomography ◽  
Main Research ◽  
Growth Status ◽  
Status Monitoring ◽  
Tomography System ◽  
New Varieties ◽  
Non Destructive

The fast non-destructive inspection of plant tubers or roots is a big problem in the plant accurate cultivation. With the characteristic of non-invasion, low cost, no radiation and visualization, the electrical resistance tomography technology is applied to the research of agriculture field; therefore it can be used in the tuber growth status monitoring, new varieties nurturing and fine cultivation of plants. The main research contents include: establish the sensitive model and simulate by using COMSOL software; the affects brought by different positions and sizes of one tuber are studied in detail and the research of effects of tuber number on electrical properties is carried out. The research has crucial guidance for the further study of the TERT technology.

Design of a Low-Cost Acquisition System to Reconstruct Images through Electrical Resistance Tomography

2020 ◽  
Vol 18 (09) ◽  
pp. 1592-1598
Author(s):  
Bruno Furtado de Moura ◽  
Marcio Ferreira Martins ◽  
Francisco Hernan Sepulveda Palma ◽  
Wellington Betencurte da Silva ◽  
Jorge Acevedo Cabello ◽  
...  
Keyword(s):  
Electrical Resistance ◽  
Low Cost ◽  
Acquisition System ◽  
Electrical Resistance Tomography

Analysis of electrical resistance tomography measurements obtained on a bubble column

2001 ◽  
Vol 12 (8) ◽  
pp. 1055-1060 ◽  
Author(s):  
E Fransolet ◽  
M Crine ◽  
G L'Homme ◽  
D Toye ◽  
P Marchot
Keyword(s):  
Electrical Resistance ◽  
Bubble Column ◽  
Electrical Resistance Tomography
Sign in / Sign up

Export Citation Format

Share Document