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Analys och modifiering av digital filteralgoritm för gassensor
Linköping University, Department of Electrical Engineering.
2008 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
Abstract [en]


This work was assigned by a technological company that manufactures gas detectors in which the sensor signal is processed using digital filters. These filters have been developed by a consultancy firm which converted previously used analog filters to digital filters. The purpose of this work has been to analyse inadequate, and sometimes erroneous, documentation from the project in order to provide the company with know-how and tools for further improvement of their products. The work has been done using the simulation software COMSOL which was bought solely for the project. Analysis showed serious flaws as well as pure errors in the consultant’s documentation. By sorting out and documenting the actual functionality it has been possible to propose further improvements. One such possible improvement is described in the report.

Place, publisher, year, edition, pages
Institutionen för systemteknik , 2008. , 46 p.
Keyword [sv]
Gas, Sensor, Signalbehandling
National Category
Control Engineering
URN: urn:nbn:se:liu:diva-12157ISRN: LiTH-ISY-EX-ET--08/0350--SEOAI: diva2:18451
2008-06-11, Algoritmen, B-huset, Linköpings universitet, 581 83, Linköping, 14:15
Available from: 2008-06-18 Created: 2008-06-18

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