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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592


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Title: Acoustic Assessment Technologies for Optimal Wood Products and Biomass Utilization

Source: USDA Forest Service, Forest Products Laboratory, General Technical Report, FPL-GTR-226, 2013; pp. 150-160.

Author(s)Brashaw, Brian K.; Wang, Xiping; Fellman, Dean; Ross, Robert J.; Xu, Huadong

Publication Year: 2013  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4714-1B

Abstract: The College of Menominee Nation collaborated with University of Minnesota Duluth and USDA Forest Products Laboratory to advance research on robust nondestructive evaluation technologies capable of predicting the wood properties of trees, stems, and logs, and assessing the value of stands and forests. A comprehensive assessment of the acoustic properties for two important wood species (white pine and sugar maple) was completed. This assessment showed a natural variation in acoustic velocity that could be determined in standing trees using commercial acoustic equipment. The variation in acoustic velocity can be used to sort trees and logs into quality grades than can be used to direct the material into appropriate product classifications. A strong relationship between radial stress wave velocity and crosssection quality was shown for both white pine and sugar maple using the Fakopp microsecond timer. Resistance microdrilling of the radial cross section showed an excellent relationship between the mean resistance and the measured green density of the tree. This could importantly be used to accurately predict weight measures of the stand for use in potential carbon credits or biomass estimation.

Keywords: nondestructive evaluation, trees, logs, acoustic velocity

Publication Review Process: Non-Refereed (Other)

File size: 603 kb(s)

Date posted: 10/24/2013
RITS Product ID: 66544
Current FPL Scientists associated with this product (listed alphabetically)
Ross, Robert J.
Supervisory Research Gen. Engineer
Wang, Xiping
Research Forest Products Technologist

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