Investigation of a wool measurement device for determining the mean diameter of a sample consisting of multiple wool fibres

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dc.contributor.advisorPerold, W. J.en_ZA
dc.contributor.advisorBurger, A. J.en_ZA
dc.contributor.advisorVon Bergmann, H.en_ZA
dc.contributor.authorSpangenberg, Dirk-Mathysen_ZA
dc.contributor.otherStellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering.en_ZA
dc.date.accessioned2012-03-07T10:10:11Zen_ZA
dc.date.accessioned2012-03-30T11:09:29Z
dc.date.available2014-03-07T03:00:03Z
dc.date.issued2012-03en_ZA
dc.descriptionThesis (MScEng)--Stellenbosch University, 2012.en_ZA
dc.description.abstractENGLISH ABSTRACT: In the wool trade the mean diameter of wool is a primary indicator of wool quality. It is currently standard practice for a wool grower to send samples to a laboratory for classification before and after shearing. The devices used to make measurements on samples are often big and bulky and sensitive to the environment, thus they are not ideally suited for on site testing. A brief discussion of the industry is given with background information on existing devices as well as information about organic fibres in general. We test an experimental device which has the potential to be robust and compact based on the Fourier optical principle. Two initial designs are considered and the transmission design is further developed into a working system. The working system is evaluated in a sample measurement experiment. In our sample measurement experimentwe determine the mean diameter of a set of samples which has been analysed by an external testing body such that the measurements could be compared.en_ZA
dc.description.abstractAFRIKAANSE OPSOMMING: In diewol bedryfword die gemiddelde diameter vanwol as ’n primêre kwaliteitindeks gebruik. Dit is tans gebruiklik om wol monsters na ’n laboratorium te stuur vir klassifikasie voor en na die skape geskeer word. Die toestel wat gebruik word om die wol monsters te klassifiseer is geneig om groot, lomp en sensitief vir die omgewing te wees en is sodoende nie ideaal vir veld gebruik nie. ’n Kort uitleg van die industrie word gegee tesame met agtergrond inligting van bestaande toestelle asook agtergrond oor organiese vesels in die algemeen. Ons toets ’n eksperimentele toestel wat potensieel kompak en aanpasbaar kan wees en gebaseer is op die Fourier optiese prinsiep. Twee aanvanklike ontwerpe word oorweeg en eindelik word die transmissie ontwerp verder ontwikkel tot ’n werkende sisteem. Die sisteem word geëvalueer in ’n monster meting eksperiment. In die monster meting eksperiment bepaal ons die gemiddelde diameter van ’n stel monsters waarvan die gemiddelde diameter deur ’n eksterne liggaam bepaal is om sodoende die metings te kan vergelyk.en_ZA
dc.format.extentxvi, 165 p. : ill.
dc.identifier.urihttp://hdl.handle.net/10019.1/20383
dc.language.isoen_ZA
dc.publisherStellenbosch : Stellenbosch Universityen_ZA
dc.rights.holderStellenbosch Universityen_ZA
dc.subjectFourier opticsen_ZA
dc.subjectWool -- Measurementen_ZA
dc.subjectWool -- Classificationen_ZA
dc.subjectDissertations -- Electrical and electronic engineeringen_ZA
dc.subject.otherTheses -- Electrical and electronic engineeringen_ZA
dc.titleInvestigation of a wool measurement device for determining the mean diameter of a sample consisting of multiple wool fibresen_ZA
dc.typeThesisen_ZA
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