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Lasermätning i byggnad
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
2009 (Swedish)Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesisAlternative title
Laser measurements in building (English)
Abstract [sv]

Examensarbetet ”Laser measurements in building” utfordes under projektnamnet Laserscanner vid elektronikkonsultfirman Syntronic i Gavle av en student vid Linkopings Universitet. Projektet gar ut pa att utveckla och bygga en prototyp for beroringsfri avstandsmatning med laser. Prototypen skall sedan anvandas for utvardering av prestanda och identifiera problemomraden med denna typ av konstruktion. Prototypen innehaller ett delsystem for overforing av matdata till PC for efterbehandling. Projektet avgransar sig till att inte innehalla nagon utveckling av applikationer for efterbehandling av matdata. Grundtanken med prototypen ar att utga ifran en kommersiellt tillganglig handhallen avstandsmatare da dessa erbjuder god prestanda till ett lagt pris. Till projektet anvandes en Leica Disto TM Plus for avstandsmatning. Denna visade sig mycket lamplig for projektet da den ar utrustad med en Blatandsmodul som gjorde det mojligt att bade extrahera matdata fran avstandsmataren men ocksa att tradlost skicka data till PC.

Utvarderingen av prototypen visar att prototypen uppfyller alla krav pa funktionalitet och prestanda. Dock visar det sig att den ar den svar att hantera rent praktiskt framforallt beroende pa att stativets installningar inte ar tillrackligt kansliga. Det visar sig ocksa att avstandsmataren ar monterad 0,53° fel i forhallande till den tankta matlinjen som pafor ett matfel. Detta matfel ar ej forsumbart vid matning mot mal som ej ar ortogonala gentemot den tankta matlinjen. Forslag pa forbattringar av konstruktionen har tagits fram. Projektet har genererat erfarenheter som kan utnyttjas vid utveckling av en liknande produkt.

Abstract [en]

The thesis project ”Laser measurements in building” was conducted at the electronics consultant firm Syntronic in Gavle, Sweden by a student at Linkoping University, the Department of Science and Technology. The purpose with the project was to develop and construct a prototype for distance measurements using laser technology. The idea is to use the prototype for evaluation and identification of problem areas with this type of device. The prototype will include a system for transferring data to a PC. The project will not include any development of a PC application to handle data.

The prototype will be based on a commercially available laser distance meter because that these devices have remarkable good performance in their price range compared to similar products. The Leica Disto TM Plus was chosen to be used for distance measuring. This distance meter proved to be a very good choice because it was equipped with a Bluetooth module that could be modified for extracting data and made it possible for a wireless transfer of data to PC.

The evaluation of the prototype showed that it fulfils every requirement that was set up at the beginning of the project. The evaluation also showed that the handling of the prototype is not up to standards mainly because of the tripod on which was used together with the prototype. The prototype has an angular error of 0,53° of the laser beam to one side due to a design flaw. This will add a distance error that is not negligible from targets that are not orthogonal with the theoretical measuring line. Suggestions for improvements in the design of the prototype have been put forward. The project has generated practical knowledge that can be used in the development of a similar product.

Place, publisher, year, edition, pages
2009. , 43 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-94407ISRN: LiU-ITN-TEK-A--09/035--SEOAI: oai:DiVA.org:liu-94407DiVA: diva2:634539
Subject / course
Electrical Engineering
Supervisors
Examiners
Available from: 2013-07-01 Created: 2013-06-25 Last updated: 2013-07-01Bibliographically approved

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CiteExportLink to record
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