Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Methods for automatic inspection of weld geometry
Högskolan Väst, Institutionen för ingenjörsvetenskap.
2008 (engelsk)Independent thesis Advanced level (professional degree)Oppgave
Abstract [en]

The earlier in the production chain discontinuities in the weld area are discovered the better and less expensive it is to modify the weld. If the weld is bigger than necessary the cost and the weight grow, and if the weld is undersized the strength is put at risk. This report contains a summary of a literature survey for finding means for optical measurements of weld geometry. Some of the articles are about existing devices that can measure welds. One is hand-held and is applied on the weld afterwards and compares the data with pre set parameters. Experiments were performed with two different systems to evaluate their capability to capture the weld geometry. The first system is an in - house built system with a laser line diode and a CMOS - camera, the other system is scanCONTROL, and is a device with integrated camera and laser line. Matlab was used to process and analyse data from both systems. Experiments with the first system ended when it was quite obvious that it did not meet the expected result. The laser line projection was too short to cover enough of the weld area and it was hard to process the image to find defects in the weld area. The data from the scanCONTROL system was ready to use and it was quite easy to find different defects and discontinuities in the weld area. It is possible to find the geometry of the weld and it is possible to find defects like spatter, undercut and sharp edges, with laser line projection and camera. The equipment is important in order to extract data useful for analysis.

sted, utgiver, år, opplag, sider
Trollhättan, 2008. , s. 59
Emneord [sv]
Digital bildbehandling
Identifikatorer
URN: urn:nbn:se:hv:diva-720OAI: oai:DiVA.org:hv-720DiVA, id: diva2:215294
Uppsök
teknik
Tilgjengelig fra: 2009-05-06 Laget: 2009-05-06

Open Access i DiVA

fulltekst(2356 kB)2793 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 2356 kBChecksum SHA-512
55872245498ce850d2f18ecc98203f3d52d559721a87f915af2418c7e378e154e017794510714d0bcce734538db89512f375cb55422bc456847055cc99062557
Type fulltextMimetype application/pdf

Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 2877 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

urn-nbn

Altmetric

urn-nbn
Totalt: 440 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf