You are here: Home :: Area NEM :: Agricultural science

Hansruedi Maurer, Sandy Isabelle Schubert, Fritz Bächle, Sebastian Clauss, Daniel Gsell, Jürg Dual, Peter Niemz

A simple anisotropy correction procedure for acoustic wood tomography

Keywords: Acoustic, anisotropy, decay, inversion procedure, tomography, trees, ultrasound

Anisotropy of acoustic propagation velocities is a ubiquitous feature of wood. This needs to be considered for successful application of travel time tomography, an increasingly popular technique for non-destructive testing of living trees. We have developed a simple correction scheme that removes first-order anisotropy effects. The corrected travel-time data can be inverted with isotropic inversion codes that are commercially available. Using a numerical experiment, we demonstrate the consequences of ignoring anisotropy effects and outline the performance of our correction scheme. The new technique has been applied to two spruce samples. Subsequent inspection of the samples revealed a good match with the tomograms.

Holzforschung, Walter de Gruyter

Print ISSN: 0018-3830
Volume: 60, 08/2006
Pages: 567 - 573

Show full article (external site)

Show all available items of this journal

 

Area NEM