bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)


2008 e-Impact Factor

25 Top Downloaded Articles

Best Selling Articles 2012

Journal Subscription 2013

Editorial Calendar 2013

Submit an Article

Editorial Board

Current Issue

Sesors & Transducers journal's cover

Sensors & Transducers Journal 2011

Sensors & Transducers Journal 2010

Sensors & Transducers Journal 2009

Sensors & Transducers Journal 2008

Sensors & Transducers Journal 2007

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents

2006 S&T e-Digest Contents


Best Articles 2011




Vol. 150, No. 3, March 2013, pp. 97-105




Simulation Study of Bubble Detection Using Dual-Mode Electrical Resistance and Ultrasonic Transmission Tomography for Two-Phase Liquid and Gas

Fazlul Rahman MOHD YUNUS, Noor Azida NOOR AZLAN, Nor Muzakkir NOR AYOB, Muhammad Jaysuman PUSPPANATHAN, Mohd Fahajumi JUMAAH, C. L Goh, Ruzairi ABDUL RAHIM, Anita AHMAD, Yusri Md YUNUS, Herlina ABDUL RAHIM

Process Tomography and Instrumentation Research Group (PROTOM-i), INFOCOMM

Research Alliance, Faculty of Electrical Engineering, Universiti Teknologi Malaysia

81310 UTM Skudai, Johor, Malaysia

Tel.: +607-5537801, fax: +607-5537811

E-mail: ruzairi@fke.utm.my, frahman3@live.utm.my


Received: 12 February 2013   /Accepted: 19 March 2013   /Published: 29 March 2013

Digital Sensors and Sensor Sysstems


Abstract: Tomography is a process of imaging parameters in industrial applications. It can be based on different sensing methods; ultrasound and electrical impedance sensing methods are both sensitive to the particular characteristics of a material. These imaging methods have been shown to be practical instruments for process monitoring in the process industry. However the achieved image can be low in quality and restricted in resolution due to ill-posedness of the inverse problems and limited data. To further enhance the spectral images, this paper proposed combination of ultrasound transmission tomography (UTT) and electrical resistance tomography (ERT) to monitor a static two-phase liquid and gas. This paper presents the modeling approach for three dimensional (3D) geometries with linear finite element method (FEM) using COMSOL multiphysics. The modeling approach is aimed to determine the ability of dual-modality system in detecting bubbles with different sizes located at the center medium in acrylic vessel. Simulation results showed that the dual-modality system has the potential and can be implemented as alternative technique to visualize bubble with minimum radius of 5 mm located at center of the acrylic vessel.


Keywords: Electrical resistance tomography, Ultrasonic tomography, Opposite excitation, Acoustics impedance, Time-of flight, Bubble


Acrobat reader logo Click <here> or title of paper to download the full pages article in pdf format






1999 - 2018 Copyright , International Frequency Sensor Association (IFSA). All Rights Reserved.

Home - News - Links - Archives - Tools - Voltage-to-Frequency Converters - Standardization - Patents - Marketplace - Projects - Wish List - e-Shop - Sensor Jobs - Membership - Videos - Publishing - Site Map - Subscribe - Search

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Submit Press Release - Submit White Paper - Testimonies - Twitter - Facebook - LinkedIn