Inverse Radon method based on electrical field lines for dual modality electrical tomography

2020 ◽  
pp. 1-1
Author(s):  
Xin Gao ◽  
Zhang Cao ◽  
Yu Tian ◽  
Lijun Xu ◽  
Wuqiang Yang
Keyword(s):  
Electrical Tomography ◽  
Electrical Field ◽  
Dual Modality ◽  
Field Lines ◽  
Inverse Radon

Fabrication of Carbon Nanotube Gas Sensor Using Step-Wise Dielectrophoretic Deposition Onto Interdigitated Pyrolyzed Carbon Electrodes

2021 ◽  
Author(s):  
Taajza Singleton ◽  
Lawrence Kulinsky
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Carbon Nanotube ◽  
Gas Sensor ◽  
Carbon Electrodes ◽  
Proof Of Concept ◽  
Nitrogen Gas ◽  
Electrical Field ◽  
The Creation ◽  
Field Lines

Abstract Carbon nanotubes (CNTs) have been implemented in the creation of many micro- and nano-devices due to their physical properties such as large volume-to-surface area as well as their high thermal and electrical conductivity. The paper describes a novel dielectrophoretic step-wise deposition of CNTs (that alternates deposition of CNTs and drying steps) between the interdigitated fingers of carbon electrodes. Multiphysics simulation illustrates the physics of CNT alignment along the electrical field lines that forms a basis for dielectrophoretic deposition of CNTs. This fabrication methodology resulted in the creation of a proof-of-concept nitrogen gas sensor.

Electrical Characteristic Analysis of Electrical Capacitance and Resistance Dual-Modality Tomography Sensor Based on Metal-Wall

2012 ◽  
Vol 241-244 ◽  
pp. 1060-1063 ◽  
Author(s):  
Jing Chuang Zhao ◽  
Wen Li Fu ◽  
Jing Jie Lei ◽  
Bin Qiu ◽  
Xian Yu Li
Keyword(s):  
Cross Section ◽  
Information Fusion ◽  
Electrical Characteristic ◽  
Electrical Capacitance ◽  
Characteristic Analysis ◽  
Electrical Field ◽  
Imaging Algorithm ◽  
Dual Modality ◽  
Dual Modality Imaging ◽  
Metal Wall

The electrical field finite element mathematical model of electrical capacitance and resistance dual-modality tomography sensor has been established. The dual-modality tomography sensors are installed on the different cross-section of the same pipeline with metal-wall. The electrical characteristic of dual-modality sensing fields was analysized. The simulation result of the provided theoretical model is the basis for dual-modality imaging algorithm and information fusion.

Dual-Modality Electrical Tomography for Flame Monitoring

2018 ◽  
Vol 18 (21) ◽  
pp. 8847-8854 ◽  
Author(s):  
Die Hu ◽  
Zhang Cao ◽  
Shijie Sun ◽  
jiangtao sun ◽  
Lijun Xu
Keyword(s):  
Electrical Tomography ◽  
Dual Modality ◽  
Flame Monitoring

Measurements of RF-Induced SOL Modifications in Tore Supra Tokamak

2012 ◽  
Author(s):  
Martin Kubič ◽  
James P. Gunn ◽  
Laurent Colas ◽  
Stéphane Heuraux ◽  
Eric Faudot
Keyword(s):  
Magnetic Field ◽  
Radio Frequency ◽  
Flow Pattern ◽  
Current Flow ◽  
Power Ratio ◽  
Electrical Field ◽  
Ion Cyclotron ◽  
New Type ◽  
Field Lines ◽  
The Magnetic Field

Since spring 2011, one of the three ion cyclotron reconance heating (ICRH) antennas in the Tore Supra (TS) tokamak is equipped with a new type of Faraday screen (FS). Results from Radio Frequency (RF) simulations of the new Faraday screen suggest the innovative structure with cantilevered bars and ‘shark tooth’ openings significantly changes the current flow pattern on the front of the antenna which in turn reduces the RF potential and RF electrical field in particular parallel to the magnetic field lines which contributes to generating RF sheaths. Effects of the new FS operation on RF-induced scrape-off layer (SOL) modifications are studied for different plasma and antenna configurations — scans of strap power ratio imbalance, phasing, injected power and SOL density.

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