Miniature Light Scattering Systems For On-Line Process Particle Size And Velocity Measurement

R. G. W. Brown; J. G. Burnett; K. Chow; J. G. Rarity

doi:10.1117/12.949341

10 March 1989 Miniature Light Scattering Systems For On-Line Process Particle Size And Velocity Measurement

R. G. W. Brown, J. G. Burnett, K. Chow, J. G. Rarity

Author Affiliations +

Proceedings Volume 1012, In-Process Optical Measurements; (1989) https://doi.org/10.1117/12.949341
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany

Abstract

Light scattering techniques for velocity and particle size analysis are well established research and industrial tools. In general, light scattering instruments have been large and expensive, requiring skilled operation. We have constructed and tested a range of light scattering instruments in miniature form using the recently available range of new semiconductor laser diodes, avalanche and PIN photodiodes and optical fibres. Thus is has been possible to demonstrate laser Doppler and transit anemometers for turbulent flow analysis and dynamic light scattering instruments for particle size analysis all of which are small and cheap enough to be of value in on-line process monitoring and control. We describe the critically important features of the new technologies used, and how we have coupled new devices together into systems for industrial applications of importance eg biotechnology, pharmaceuticals, automobile, aerospace, chemicals, etc.

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R. G. W. Brown, J. G. Burnett, K. Chow, and J. G. Rarity "Miniature Light Scattering Systems For On-Line Process Particle Size And Velocity Measurement", Proc. SPIE 1012, In-Process Optical Measurements, (10 March 1989); https://doi.org/10.1117/12.949341

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