Universiti Teknologi Malaysia Institutional Repository

Tomographic imaging : multiple fan beam projection technique using optical fibre sensors

Abdul Rahim, Ruzairi and Leong, L. C. and Chan, Kok San and Sulaiman, S. and Pang, J. F. (2005) Tomographic imaging : multiple fan beam projection technique using optical fibre sensors. In: Proceeding of 1st Conference on Computers, Communication, and Signal Processing, 14-16 November 2005, Kuala Lumpur.

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Abstract

This paper presents the timing advantage of implementing multiple fan beam projection technique using optical fibre sensors for a tomography system. To prepare the optical fibre sensors to be used for this multiple fan beam projection, a collimator is not needed but optical fibre lens’ termination is crucial. In this research, the fibre optic lens for transmitters is model led by experimental methods to transmit light at an emission angle of 300. Due to its small emission angle,multi-projection technique can be implemented without the lights overlapping. Multiple fan beam projection technique here is defined as allowing more than one emitter to project light at the same time using the switch-mode fan beam method.This method use disable to increase the optical sensor’s ability in flow visualization. For the 32 pairs of sensors used,the 2-projection technique and 4-projection technique are being investigated. 16 sets of projections will complete one frame of light emission for the 2 - projection technique while 8 sets of projection will complete one frame of light emission for the 4 - projection technique. Compared to the conventional single light projection used in switch-mode fan beam method,multiple light projection scan achieve a higher data acquisition rate,thus minimizing data lost and producing a more accurate real-time tomographic image

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Optical fibre sensors, multiple fan beam projection technique, 2-projection technique, 4-projection technique, real-time.
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:1796
Deposited By: Dr Zaharuddin Mohamed
Deposited On:15 Mar 2007 02:44
Last Modified:19 Apr 2017 04:05

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