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Optical sensing of smoke using a polychromatic LED: combustion material identification using HLS analysis

R.A. Aspey (Department of Physics, Science Laboratories, The University of Durham, Durham, UK)
K.J. Brazier (School of Computing Sciences, University of East Anglia, Norwich, UK)
J.W. Spencer (Department of Electrical and Electronic Engineering, The University of Liverpool, Liverpool, UK)

Sensor Review

ISSN: 0260-2288

Article publication date: 1 June 2004

Abstract

A multi wavelength optical sensing technique has been tested for monitoring a smoke or aerosol polydispersion so as to allow positive discrimination between types of aerosols or particles. It uses a polychromatic LED and spectral analysis in real‐time via the technique of chromatic modulation which allows a three‐parameter description to characterise spectral interactions due to scattering.

Keywords

Citation

Aspey, R.A., Brazier, K.J. and Spencer, J.W. (2004), "Optical sensing of smoke using a polychromatic LED: combustion material identification using HLS analysis", Sensor Review, Vol. 24 No. 2, pp. 199-205. https://doi.org/10.1108/02602280410525986

Publisher

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Emerald Group Publishing Limited

Copyright © 2004, Emerald Group Publishing Limited