An overview: effectiveness of different arrangement for electrode guard in electrical capacitance tomography

Abd Shaib, Mohd Fadzli and Mohamad, Elmy Johana and Abdul Rahim, Ruzairi and Abd Jamil, Mahadi and Leow, Pei Ling (2011) An overview: effectiveness of different arrangement for electrode guard in electrical capacitance tomography. Sensors & Transducers Journal, 135 (12). pp. 20-26. ISSN 1726- 5479

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Abstract

Electrical capacitance tomography (ECT) system is useful to obtain information about the spatial distribution of a dielectric materials mixture inside a vessel. It has been suggested by many researchers previously to use guard electrode in ECT sensors. This paper describes various types of design for guard electrode in Electrical Capacitance Tomography (ECT) sensor. The design of these electrode guards is vital to reduce crosstalk (undesired signals) between the adjacent electrodes (positioned at the outside of the measured pipe) since the crucial signals are only inside the pipe. There are three types of electrode guards designed by various researchers which are radial guard, axial guard with end guard and driven guard. The configuration and the effectiveness of each designed electrode are discussed. Other than that this paper introduced new design of electrode guards which are embedded on electrode sensor instead of placing separately between or around adjacent measuring electrodes as the previous design.

Item Type:Article
Uncontrolled Keywords:guard; electrode; arrangement; effectiveness; ECT
Subjects:T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions:Faculty of Electrical and Electronic Engineering > Department of Robotic and Mechatronic Engineering
ID Code:6117
Deposited By:Normajihan Abd. Rahman
Deposited On:21 Dec 2014 15:46
Last Modified:21 Dec 2014 15:46

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