Universiti Teknologi Malaysia Institutional Repository

Detection of small gas bubble using ultrasonictransmission-mode tomography system

Abdul Rahim, Ruzairi and Nor Ayob, Nor Muzakkir and Fazalul Rahiman, Mohd. Hafiz and Zakaria, Zulkarnay and Yaacob, Sazali (2010) Detection of small gas bubble using ultrasonictransmission-mode tomography system. In: 2010 IEEE Symposium on Industrial Electronics and Applications (ISIEA 2010), , October 3-5, 2010, Penang, Malaysia.

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This paper presents the development of an ultrasonic transmission-mode tomography system for the detection of small gas bubble using higher frequency ultrasonic sensors. The selection of the sensors is important and must be suitable to the application design. Consideration on the natural limitation of ultrasonic wave is also noted as the higher the frequency of the ultrasonic transducer, the better the sensitivity but lower penetration depth. 16-pairs of these ultrasonic sensors are installed and fixed inside a sensor jig which is designed to hold all the sensors. The sensor jig is also mounted on the circumference of a vertical column which will be used as the investigated process vessel. The developments presented also include the non-invasive fabrication techniques, the electronic measurement circuits, image reconstruction technique, and finally on the imaging results of the proposed system.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:liquid/gas imaging, transmission-mode, ultrasonic sensor, ultrasonic tomography
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:23909
Deposited By: Mrs Liza Porijo
Deposited On:19 Sep 2012 03:24
Last Modified:19 Sep 2012 03:33

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