Thesis-2002-Lum.pdf (15.28 MB)
A four-beam optical polarimeter for robust particle shape detection
thesis
posted on 2018-11-14, 12:55 authored by Wai-Hoong LumParticle shape detection and measurement are important features in the more
general field of particle analysis and characterisation. Knowledge of the particle
shape is useful in a wide variety of industrial applications. Although it is often
practically feasible to use imaging technologies for particle shape analysis, this is
not often a sufficiently efficient method for widespread on-line or in situ
applications. In many applications it would be sufficient to have an indicator of
particle shape, in the same way that a turbidity sensor is an indicator of the amount
of particles present.
Scattered polarized light from individual particles will be shown as a useful tool
for particle shape detection. In principle, the presence of non-spherical particles
can be diagnosed by analysing the change in polarisation state following scattering
and in particular exploiting a configuration in which spherical particles produce no
such changes.
The concerns of this thesis are the design and implementation of optical
polarimeters for the detection of non-spheres in an aqueous suspension, with
particular emphasis on a robust implementation. [Continues.]
Funding
Loughborough University (research studentship). Institution of Electrical Engineers (postgraduate scholarship).
History
School
- Mechanical, Electrical and Manufacturing Engineering
Publisher
© Wai-Hoong LumPublisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2002Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of the degree of Doctor of Philosophy at Loughborough University.Language
- en