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Hastighetsreglering av monokromator (Speed Control of a Monochromatic Lens)

Folkesson, Tobias and Johansson, Niklas (2003) In MSc Theses
Department of Automatic Control
Abstract
In this master thesis an equipment for measuring the quality on various grains within the agricultural industry is being investigated. The equipment is manufactured by FOSS Tecator a company situated in the beautiful city of Höganäs in Sweden. The food-analyzing is conducted with so called NIR-spectrometry, a method in which the grain is exposed to light with various wavelengths. The different wavelengths are produced by a holographic lens which gives abroad spectrum for computer analysis depending on its angular position. The goal of this master thesis has been to detect the process behaviour and control this rotating motion within good stability margins. First of all an effort to create a model of the process by frequency analysis was... (More)
In this master thesis an equipment for measuring the quality on various grains within the agricultural industry is being investigated. The equipment is manufactured by FOSS Tecator a company situated in the beautiful city of Höganäs in Sweden. The food-analyzing is conducted with so called NIR-spectrometry, a method in which the grain is exposed to light with various wavelengths. The different wavelengths are produced by a holographic lens which gives abroad spectrum for computer analysis depending on its angular position. The goal of this master thesis has been to detect the process behaviour and control this rotating motion within good stability margins. First of all an effort to create a model of the process by frequency analysis was made, but failed. Then in order to detect the process a model based on physical equation was made. This model gave the authors a usable tool in the continuing work in creating a good controller to the process. The model was implemented in MATLAB/Simulink and various tests were conducted in which the authors were lead to believe that a simple P-controller would work perfectly well. The P-controller was also implemented upon the real process where good controllability was reached. (Less)
Please use this url to cite or link to this publication:
author
Folkesson, Tobias and Johansson, Niklas
supervisor
organization
year
type
H3 - Professional qualifications (4 Years - )
subject
publication/series
MSc Theses
report number
TFRT-5713
ISSN
0280-5316
language
Swedish
id
8848117
date added to LUP
2016-03-19 17:32:35
date last changed
2016-03-19 17:32:35
@misc{8848117,
  abstract     = {In this master thesis an equipment for measuring the quality on various grains within the agricultural industry is being investigated. The equipment is manufactured by FOSS Tecator a company situated in the beautiful city of Höganäs in Sweden. The food-analyzing is conducted with so called NIR-spectrometry, a method in which the grain is exposed to light with various wavelengths. The different wavelengths are produced by a holographic lens which gives abroad spectrum for computer analysis depending on its angular position. The goal of this master thesis has been to detect the process behaviour and control this rotating motion within good stability margins. First of all an effort to create a model of the process by frequency analysis was made, but failed. Then in order to detect the process a model based on physical equation was made. This model gave the authors a usable tool in the continuing work in creating a good controller to the process. The model was implemented in MATLAB/Simulink and various tests were conducted in which the authors were lead to believe that a simple P-controller would work perfectly well. The P-controller was also implemented upon the real process where good controllability was reached.},
  author       = {Folkesson, Tobias and Johansson, Niklas},
  issn         = {0280-5316},
  language     = {swe},
  note         = {Student Paper},
  series       = {MSc Theses},
  title        = {Hastighetsreglering av monokromator (Speed Control of a Monochromatic Lens)},
  year         = {2003},
}