Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Density measurements in Pinus sylvestris sawlogs combining X-ray and three-dimensional scanning
SP- Sveriges Tekniska Forskningsinstitut, Trätek.
SP- Sveriges Tekniska Forskningsinstitut, Trätek.
2010 (English)In: Scandinavian Journal of Forest Research, ISSN 0282-7581, E-ISSN 1651-1891, Vol. 25, no 5, 470-481 p.Article in journal (Refereed)
Abstract [en]

Wood density is an important quality variable, closely related to the mechanical properties of the wood. Precise wood density measurements in the log sorting would enable density sorting of logs for products such as strength-graded wood and finger-jointed wood. Density sorting of logs would also give more homogeneous drying properties and thus improve the quality of the final products. By compensating the radiographs from an X-ray log scanner for the varying path lengths using outer shape data from a three-dimensional (3D) scanner, it is possible to make precise estimates of both green and dry density. Measurements on simulated industrial data were compared with densities measured in computed tomographic (CT) images for 560 Scots pine (Pinus sylvestris L.) logs. It was found that green sapwood density could be measured with predictability R 2=0.65 and root mean square error (RMSE) of 25 kg m-3. Green and dry heartwood densities were measured with similar precision: R 2=0.79 and RMSE=32 kg m-3 for green density and R 2=0.83 and RMSE=32 kg m-3 for dry density.

Place, publisher, year, edition, pages
2010. Vol. 25, no 5, 470-481 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-6155Local ID: 10315OAI: oai:DiVA.org:ri-6155DiVA: diva2:963990
Available from: 2016-09-08 Created: 2016-09-08 Last updated: 2017-11-21Bibliographically approved

Open Access in DiVA

No full text

By organisation
SP- Sveriges Tekniska Forskningsinstitut, Trätek
In the same journal
Scandinavian Journal of Forest Research
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 7 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.29.1