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Simulated grading o...
Simulated grading of logs with an x‐ray log scanner‐grading accuracy compared with manual grading
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- Grundberg, Stig (författare)
- Luleå tekniska universitet,Träteknik,Swedish Institute for Wood Technology Research, Skeria 2, Skellefteå, S‐931 87, Sweden
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- Grönlund, Anders (författare)
- Luleå tekniska universitet,Träteknik
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(creator_code:org_t)
- 2008-12-10
- 1997
- Engelska.
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Ingår i: Scandinavian Journal of Forest Research. - : Informa UK Limited. - 0282-7581 .- 1651-1891. ; 12:1, s. 70-76
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Today sawmills have started to use automatic methods for log grading. The methods used are either optical or gamma–ray scanners. However, the signals from these scanners are too coarse for accurate log grading and for good control of the sawing process at the single log level. The objective of the present study was to determine the grading accuracy of a log–scanner with two industrial X–ray sources. The grading accuracy was compared with the accuracy of manual grading. The results showed that the manual grading of logs and boards is difficult. The accuracy of manual grading was low and the automatic grading systems were more reliable than manual ones. Possibilities for improving the automatic grading systems are discussed.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Annan maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Other Mechanical Engineering (hsv//eng)
Nyckelord
- Log grading
- Manual grading
- Scanning
- X–ray
- Wood Technology
- Träteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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