Surface Characterization of Weathered Wood Using A Laser Scanning System
Keywords:
Laser scanning, surface profiles, weathering, wood surface erosionAbstract
Most of the existing methods to assess the effect of weathering on wood surfaces have some drawbacks that limit their use to specific tasks. The amount of surface erosion is often used as a measure for the weathering action. The application of a laser scanning system to reproduce surface profiles and to measure weathering erosion was tested on various samples and was found to be a very useful and superior alternative to existing methods. Further improvements of the system used can be made by refinements of the calibration procedures and by more comprehensive profile analyses.References
Arndt, U., and H. Willeitner. 1969. On the resistance behavior of wood in natural weathering. Holz Roh- Werkst. 27(5): 179-188.nArnold, M., and W. A. Dost. 1990. Weathering erosion of redwood siding on vertical walls with different age and exposure. Technical Report No. 35.04.187, University of California, Berkeley, Forest Products Laboratory.nArnold, M., J. Sell, and W. C. Feist. 1990. Accelerated weathering of wood in fluorescent ultraviolet light and xenon arc chambers using a water spray. Forest Products Journal (in press).nBonac, T. 1979. Wood roughness volume and depth estimated from pneumatic surface measurements. Wood Science 11(4):227-232.nDerbyshire, H., and E. R. Miller. 1981. The photo-degradation of wood during solar irradiation. Part I: Effects on the structural integrity of thin wood strips. Holz Roh-Werkst. 39:3341-3350.nEvans, P. D. 1988. A note on assessing the deterioration of thin wood veneers during weathering. Wood Fiber Sci. 20(4):487-492.nFaust, T. D., and J. T. Rice. 1986. Characterizing the roughness of southern pine veneer surfaces. Forest Prod. J. 36(3):57-60.nFeist, W. C., and E. A. Mraz. 1978. Comparison of outdoor and accelerated weathering of unprotected softwoods. Forest Prod. J. 28(3):38-43.nJouaneh, M., R. L. Lemaster, and D. A. Dornfeld. 1987. Measuring workpiece dimensions using a noncontact laser detector system. Intl. J. Advanced Mfg. Technol. 2(1):59-74.nLemaster, R. L., and D. A. Dornfeld. 1982. Measurement of surface quality of sawn and planed surfaces with a laser. Pages 54-61 in Proceedings of 7th Wood Machining Seminar, University of California, Forest Products Laboratory.nPahlitzsch, G., and K. DziobeK. 1961. Beitrag zur Bestimmung der Oberflaechenguete spanend bearbeiteter Hoelzer. Erste Mitteilung: Messverfahren und Beurtei-lungs-methoden fuer bandgeschliffene Hoelzer. Holz Roh-Werkst. 19(10):403-417.nPeters, C.C., and J. D. Cumming. 1970. Measuring wood surface smoothness: A review. Forest Prod. J. 20(12): 40-43.nRaczkowski, J. 1980. Seasonal effects on the atmospheric corrosion of spruce micro-sections. Holz Roh-Werkst. 38:231-234.nSell, J., and W. C. Feist. 1986. Role of density in the erosion of wood during weathering. Forest Prod. J. 36(3): 67-60.nSell, J., and U. Leukens. 1971. Investigations on weathered wood surfaces. Part 2.: Weathering phenomena of unprotected wood species. Holz Roh-Werkst. 29(1):23-31.nWilliams, R. S. 1989. Effect of dilute acid on the accelerated weathering of wood. JAPCA 38(2): 148-151.nYoo, S. M., D. A. Dornfeld, and R. L. Lemaster. 1988. Analysis and modeling of laser measurement system performance for wood surfaces. Transactions of the American Society of Mechanical Engineers. ASME J. Eng. for Industry 112(1):69-77.n
Downloads
Published
Issue
Section
License
The copyright of an article published in Wood and Fiber Science is transferred to the Society of Wood Science and Technology (for U. S. Government employees: to the extent transferable), effective if and when the article is accepted for publication. This transfer grants the Society of Wood Science and Technology permission to republish all or any part of the article in any form, e.g., reprints for sale, microfiche, proceedings, etc. However, the authors reserve the following as set forth in the Copyright Law:
1. All proprietary rights other than copyright, such as patent rights.
2. The right to grant or refuse permission to third parties to republish all or part of the article or translations thereof. In the case of whole articles, such third parties must obtain Society of Wood Science and Technology written permission as well. However, the Society may grant rights with respect to Journal issues as a whole.
3. The right to use all or part of this article in future works of their own, such as lectures, press releases, reviews, text books, or reprint books.