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Silva Fennica 1926-1997
Acta Forestalia Fennica

Articles containing the keyword 'roundness'

Category : Article

article id 5083, category Article
Matti Kärkkäinen. (1980). Havaintoja koivutukkien epäpyöreydestä ja pituusmittaeroista. Silva Fennica vol. 14 no. 3 article id 5083.
English title: Observations on the out-of-roundness and deviations from nominal lengths of birch logs.
Original keywords: puutavaranmittaus; koivu; sahaus; läpimitta; koivutukki; epäpyöreys
English keywords: birch; Betula; logs; diameter; roundness
Abstract | View details | Full text in PDF | Author Info

A material of 478 birch logs were measured. The horizontal diameter was on average larger than the vertical one, the difference increasing with the increasing diameter. The reason was supposed to be the effect of sweep and out-of-roundness of logs. The difference between the actual and nominal length increased with the increasing lengths, but decreased with increasing diameter.

The PDF includes a summary in English.

  • Kärkkäinen, E-mail: mk@mm.unknown (email)

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