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Title: Nondestructive Assessment of Schizolobium amazonicum with Stress Wave Tomography

Source: USDA Forest Service, Forest Products Laboratory, General Technical Report, FPL-GTR-226, 2013; pp. 99-104.

Author(s)França, Frederico; Vidaurre, Graziela; Nutto, Leif; Wang, Xiping; Oliveira, José Tarcísio da Silva; Biechele, Tobias

Publication Year: 2013  View PDF »

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

Abstract: This study aimed to evaluate the potential of stress wave tomography technology for assessing the quality of Schizolobium amazonicum standing trees for veneer production. The concept of stress wave tomography operation is based on the measurement of transit time of acoustic pulses that are generated by a hammer knock and move from an initial sensor to many other sensors attached to the tree. Seven 30-year-old Schizolobium amazonicum tree were selected and tested in northern Espírito Santo state, Brazil. The measurement data was processed using a specialized equipment software, generating two-dimensional tomogram images of the cross-section of the tree trunk. A yield prediction model was used to estimate the possible yield of veneer that could be produced. The average final yield prediction was 61.2%. Trees with less rotten areas resulted better yield.

Keywords: Yield prediction, Veneer

Publication Review Process: Non-Refereed (Other)

File size: 419 kb(s)

Date posted: 10/24/2013
RITS Product ID: 66550
Current FPL Scientist associated with this product
Wang, Xiping
Research Forest Products Technologist
  

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