On-line Magazine 'Sensors & Transducers' (S&T e-Digest)

    (ISSN 1726- 5479)

Vol. 72, Issue 10, October 2006, pp. 761-768

Optical Tomography: Infrared Tomography Sensor Configuration Using 4 Parallel Beam Projections

Ruzairi ABDUL RAHIM, PANG J.F, CHAN K. S.,

Mohd. Hafiz FAZALUL RAHIMAN

Department of Control and Instrumentation Engineering, Faculty of Electrical Engineering,

Universiti Teknologi Malaysia, Malaysia, E-mail: ruzairi@fke.utm.my

Received: 8 September 2006   /Accepted: 18 October 2006   /Published: 23 October 2006

Abstract: This paper represents the configuration of optical tomography sensor by using infrared emitter and phototransistor. The projection geometry of the sensor is based on the combination of two orthogonal and two rectilinear projections arrays. A fixture is designed for holding all emitter-receiver pairs in parallel. Selection of phototransistor is explained so that the tomography sensor developed is free of noise cause by surrounding environment. This paper describes all points to be considered when design an optical tomography sensor.

Keywords: Infrared, Optical tomography

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