Results 261 to 270 of about 1,745,091 (321)

Electrical Capacitance Volume Tomography

IEEE Sensors Journal, 2007
A dynamic volume imaging based on the principle of electrical capacitance tomography (ECT), namely, electrical capacitance volume tomography (ECVT), has been developed in this study. The technique generates, from the measured capacitance, a whole volumetric image of the region enclosed by the geometrically three-dimensional capacitance sensor.
Warsito Warsito, Qussai Marashdeh, Liang-Shih Fan   +2 more
openaire   +1 more source

An electrical capacitance tomography

6th International Conference on Signal Processing, 2002., 2003
This paper reports on a study determining the capacitance from given permittivity patterns and describes the image reconstruction method for electrical capacitance tomography (ECT). The model described in this paper is a square object with 8 electrodes. The finite difference method and Gauss's law are used for calculating numerically the capacitance of
C. Yossontikul, K. Chitsakul, M. Sangworasil, Y. Kitjaidure   +3 more
openaire   +1 more source

A Desolvated Solid–Solid Interface for a High‐Capacitance Electric Double Layer

Advanced Energy Materials, 2019
Understanding the electric double layer is essential for achieving efficient electrochemical energy storage technologies. A conventional solid–liquid electrode interface suffers from serious self‐discharge and a narrow voltage window, which makes the ...
Yuzuo Wang, Xu‐yi Shan, Lipo Ma, Jia‐Wei Wang, Da‐Wei Wang, Zhangquan Peng, Hui‐Ming Cheng, Feng Li   +7 more
semanticscholar   +1 more source

Electric field simulation in electrical capacitance tomography

2012 IEEE International Conference on Imaging Systems and Techniques Proceedings, 2012
The applications of electric capacitance tomography require a custom-designed sensor with individually calculated sensitivity matrix. The sensor can be modeled using an electric field simulator. A highly advanced simulator QuickWave-3D was applied to generate a sensitivity matrix for a designed sensor. The calculation results are presented and compared
Jacek Kryszyn, Waldemar T. Smolik, Roman Szabatin, Jacek Mirkowski   +3 more
openaire   +1 more source

Electric Double-Layer Capacitance of Carbon Nanocages

Journal of Nanoscience and Nanotechnology, 2009
We have carried out capacitive experiments on carbon nanocage (CNC) materials, which have highly ordered and uniform pores. The sizes of the opening pores in CNCs are approximately 5.6 nm, as measured from TEM images. CNC materials exhibit type IV nitrogen adsorption isotherms according to the IUPAC classification scheme along with hysteresis and BJH ...
Tadokoro, Makoto, Tsumeda, Satoru, Tsuhara, Nobuhide, Nakayama, Hiromi, Miyazato, Yuji, Tamamitsu, Kenji, Vinu, Ajayan, Ariga, Katsuhiko   +7 more
openaire   +4 more sources

Fabrication of Hybrid Supercapacitor by MoCl5 Precursor‐Assisted Carbonization with Ultrafast Laser for Improved Capacitance Performance

Advanced Functional Materials, 2023
Hybrid supercapacitors use electric double‐layer capacitance and Faradaic pseudocapacitance as energy storage mechanisms. This type of supercapacitor is becoming a prime candidate for next‐generation energy storage devices, with advantages in terms of ...
Heng Guo, Ming Qiao, Jianfeng Yan, Lan Jiang, Jiachen Yu, Jiaqun Li, Shengfa Deng, L. Qu   +7 more
semanticscholar   +1 more source

Optimized design and simulation of electrical capacitance sensor for electrical capacitance tomography system

SPIE Proceedings, 2002
In this paper a software method for electrical capacitance sensor design of electrical capacitance tomography system is presented by using finite element analysis techniques. Electrical capacitance sensor theory model is established, and capacitance sensitivity field distribution and structure parameters of the sensor to measurement effect are analyzed
Deyun Chen, Guibin Zheng, Congjing Yang, Xiaoyang Yu   +3 more
openaire   +1 more source

Advances in Polymer Dielectrics with High Energy Storage Performance by Designing Electric Charge Trap Structures

Advances in Materials, 2023
Dielectric capacitors have been developed for nearly a century, and all‐polymer film capacitors are currently the most popular. Much effort has been devoted to studying polymer dielectric capacitors and improving their capacitive performance, but their ...
Zhaotong Meng, Tiandong Zhang, Changhai Zhang, Yanan Shang, Q. Lei, Q. Chi   +5 more
semanticscholar   +1 more source

Inside-out electrical capacitance tomography

Flow Measurement and Instrumentation, 2011
Abstract In this work we demonstrate the construction of an ‘inside-out’ sensor geometry for electrical capacitance tomography (ECT). The inside-out geometry has the electrodes placed around a tube, as usual, but measuring ‘outwards’. The flow between the electrodes and an outer tube is reconstructed; allowing the inside-out sensor to move inside the
J. Kjærsgaard-Rasmussen, K.E. Meyer
openaire   +1 more source

Molecular understanding of the Helmholtz capacitance difference between Cu(100) and graphene electrodes.

Journal of Chemical Physics, 2023
Unraveling the origin of Helmholtz capacitance is of paramount importance for understanding the interfacial structure and electrostatic potential distribution of electric double layers (EDL).
Xiang-Ying Li, Xiang-Feng Jin, Xiaohui Yang, Xue Wang, Jia-Bo Le, Jun Cheng   +5 more
semanticscholar   +1 more source