nach oben

Wood Science and Technology

Erschienen in:

21.05.2020 | Original

Contactless moisture content measurement on green veneer based on laser light scattering patterns

verfasst von: Citra Yanto Ciki Purba, Joffrey Viguier, Louis Denaud, Bertrand Marcon

Erschienen in: Wood Science and Technology | Ausgabe 4/2020

Einloggen

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config

KI-gestützte Suche

Aus

Abstract

The wood structure anisotropy and moisture content variation within the volume create different patterns of light scattering inside the wood. The objective of this study was to assess the suitability of a laser method for online measurement of green veneer moisture content based on the so-called tracheid effect. Beech and poplar veneers with thicknesses of 1, 2 and 3 mm were subsequently laser scanned and weighed to obtain various humidities. The results show that the measured laser scattering profile, such as the major axis, minor axis and ellipse area on the veneer surface, increases with moisture. The laser scattering profile provides a reliable and precise prediction of the moisture content. Out of the three ellipse parameters evaluated, the ellipse area provides the best prediction of the moisture content of the green veneer for both beech and poplar.

Vorheriger Artikel Coating cork particles with iron oxide: effect on magnetic properties

Nächster Artikel Maldi-ToF analysis and FTIR characterization of Aucoumea klaineana Pierre (Okoume) sapwood and heartwood condensed tannins from Gabon’s natural forest

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

über 67.000 Bücher
über 390 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Maschinenbau + Werkstoffe

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

über 102.000 Bücher
über 537 Zeitschriften

aus folgenden Fachgebieten:

Automobil + Motoren
Bauwesen + Immobilien
Business IT + Informatik
Elektrotechnik + Elektronik
Energie + Nachhaltigkeit
Finance + Banking
Management + Führung
Marketing + Vertrieb
Maschinenbau + Werkstoffe
Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Jetzt informieren

Adedipe OE, Dawson-Andoh B (2008) Prediction of yellow poplar (Liriodendron tulipifera) veneer stiffness and bulk density using near-infrared spectroscopy and multivariate calibration. J Near Infrared Spec 16:487–496CrossRef

Andersson M, Persson L, Sjöholm M, Svanberg S (2006) Spectroscopic studies of wood-drying processes. Opt Express 14:3641–3653CrossRef

Antikainen T, Rohumaa A, Bulota M, Kotilahti T, Hughes M (2015a) Estimating birch veneer (Betula pendula Roth) moisture content using infrared technology. Eur J Wood Prod 73:617–625CrossRef

Antikainen T, Rohumaa A, Hughes M, Kairi M (2015b) Comparison of the accuracy of two on-line industrial veneer moisture content and density measurement systems. Eur J Wood Prod 73:61–68CrossRef

Barański J, Klement I, Vilkovská T, Konopka A (2017) High temperature drying process of beech wood (Fagus sylvatica L) with different zones of sapwood and red false heartwood. BioResources 12:1861–1870CrossRef

Bradski G (2000) The opencv library. Dr Dobb’s J Software Tools 25:120–125

Briggert A, Hu M, Olsson A, Oscarsson J (2018) Tracheid effect scanning and evaluation of in-plane and out-of-plane fiber direction in norway spruce timber. Wood Fiber Sci 50:411–429CrossRef

Ehrhart T, Steiger R, Frangi A (2018) A non-contact method for the determination of fiber direction of European beech wood (Fagus sylvatica L). Eur J Wood Prod 76:925–935CrossRef

Hartley J (1984) The drying of hardwood veneers in New South Wales. NSW Timber Advisory Council, Sydney

James WL (1963) Electric moisture meters for wood. US Dept of Agriculture Forest Products Laboratory, Madison

Johansson J, Hagman O, Fjellner BA (2003) Predicting moisture content and density distribution of scots pine by microwave scanning of sawn timber. J Wood Sci 49:312–316CrossRef

Juttula HJ, Mäkynen AJ (2013) Monte Carlo simulation of spatial reflectance pattern of translucent material with subsurface structure. In: Proceeding SPIE 8774, Prague, pp 87741R1–87741R8

Kienle A, D’Andrea C, Foschum F, Taroni P, Pifferi A (2008) Light propagation in dry and wet softwood. Opt Express 16:9895–9906CrossRef

Lutz JF (1978) Wood Veneer: Log Selection Cutting and Drying. US Dept of Agriculture Forest Service, Madison

Marra AA (1992) Technology of wood bonding. Van Nostrand Reinhold, New York

Németh R, Ott Á, Takáts P, Bak M (2013) The effect of moisture content and drying temperature on the colour of two poplars and Robinia wood. BioResources 8:2074–2083CrossRef

Nieminen S, Heikkinen J, Raty J (2013) Laser transillumination imaging for determining wood defects and grain angle. Meas Sci Technol 24:1–7CrossRef

Nyfors E (2000) Industrial microwave sensors—a review. Subsurf Sens Technol Appl 1:23–43CrossRef

Nyström J (2003) Automatic measurement of fiber orientation in softwoods by using the tracheid effect. Comput Electron Agric 41:91–99CrossRef

Olsson A, Oscarsson J, Serrano E, Källsner B, Johansson M, Enquist B (2013) Prediction of timber bending strength and in-member cross-sectional stiffness variation on the basis of local wood fiber orientation. Eur J Wood Prod 71:319–333CrossRef

Olsson A, Pot G, Viguier J, Faydi Y, Oscarsson J (2018) Performance of strength grading methods based on fibre orientation and axial resonance frequency applied to Norway spruce (Picea abies L.), Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) and European oak (Quercus petraea (Matt.) Liebl/Quercus robur L.). Ann For Sci 75:102CrossRef

Purba CYC, Pot G, Viguier J, Ruelle J, Denaud L (2019) The influence of veneer thickness and knot proportion on the mechanical properties of laminated veneer lumber (LVL) made from secondary quality hardwood. Eur J Wood Prod 77:393–404CrossRef

Simonaho S-P, Tolonen Y, Rouvinen J, Silvennoinen R (2003) Laser light scattering from wood samples soaked in water or in benzyl benzoate. Optik 114:445–448CrossRef

Simonaho S-P, Palviainen J, Tolonen Y, Silvennoinen R (2004) Determination of wood grain direction from laser light scattering pattern. Opt Laser Eng 41:95–103CrossRef

Soest J, Matthews P, Wilson B (1993) A simple optical scanner for grain defects. In: Fifth international conference on scanning technology and process control for the wood products industry, Atlanta, pp 25–27

Viguier J, Jehl A, Collet R, Bleron L, Meriaudeau F (2015) Improving strength grading of timber by grain angle measurement and mechanical modeling. Wood Mater Sci Eng 10:145–156CrossRef

Viguier J, Bourgeay C, Rohumaa A, Pot G, Denaud L (2018) An innovative method based on grain angle measurement to sort veneer and predict mechanical properties of beech laminated veneer lumber. Constr Build Mater 181:146–155CrossRef

Ward JC, Pong WY (1980) Wetwood in trees: a timber resource problem. US Dept of Agriculture Forest service, PortlandCrossRef

Zhou J, Shen J (2003) Ellipse detection and phase demodulation for wood grain orientation measurement based on the tracheid effect Opt Laser Eng 39:73–89

Titel: Contactless moisture content measurement on green veneer based on laser light scattering patterns
verfasst von: Citra Yanto Ciki Purba
Joffrey Viguier
Louis Denaud
Bertrand Marcon
Publikationsdatum: 21.05.2020
Verlag: Springer Berlin Heidelberg
Erschienen in: Wood Science and Technology / Ausgabe 4/2020
Print ISSN: 0043-7719
Elektronische ISSN: 1432-5225
DOI: https://doi.org/10.1007/s00226-020-01187-0

Springer Professional

Abstract

Bitte loggen Sie sich ein, um Zugang zu Ihrer Lizenz zu erhalten.

Sie haben noch keine Lizenz? Dann Informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Technik"

Springer Professional "Wirtschaft+Technik"

Weitere Artikel der Ausgabe 4/2020

Crack formation, strain distribution and fracture surfaces around knots in thermally modified timber loaded in static bending

Evaluation of fractionally distilled Picea abies TMP-turpentine on wood-decaying fungi: in vitro, microcosm and field experiments

Cracking the code: real-time monitoring of wood drying and the occurrence of cracks

Furfurylation result of Radiata pine depends on the solvent

Air-coupled ultrasound detection of natural defects in wood using ferroelectret and piezoelectric sensors

UV–visible diffuse reflectance spectroscopy used in analysis of lignocellulosic biomass material