Microwave nondestructive testing of wood anisotropy and scatter
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Other Title
Authors
Bogosanovic, Mirjana
Al Anbuky, A.
Emms, G.W.
Al Anbuky, A.
Emms, G.W.
Author ORCID Profiles (clickable)
Degree
Grantor
Date
2013-01-08
Supervisors
Type
Journal Article
Ngā Upoko Tukutuku (Māori subject headings)
Keyword
microwave measurement
microwave propagation
nondestructive testing
wood industry
free-space method
microwave propagation
nondestructive testing
wood industry
free-space method
ANZSRC Field of Research Code (2020)
Citation
Bogosanovic, M., Al Anbuky, A., and Emms, G. (2013). Microwave Nondestructive Testing of Wood Anisotropy and Scatter. IEEE Sensors Journal, Volume 13, Issue 1, 306-313.
Abstract
Abstract- A microwave Focused Beam transmission measurement is identified as a good candidate for fast, accurate and affordable industrial wood testing. In this paper, the transmission measurement setup, in its various forms, is applied to the measurement of wood properties, considering wood as an anisotropic, heterogeneous, multiphase dielectric. The depolarization of a linearly polarized plane wave in an anisotropic media is considered first. It is used for grain angle detection for arbitrary grain inclination in three-dimensional
space. A good correlation with visually inspected grain angle values is obtained. A scattering experiment is performed, measuring the transmission through the wood when the transmitting and the receiving antenna axes are at the right angle.
The results indicate that the annual ring arrangement strongly influences the scattering in the sideways direction, while other investigated parameters (defects, gradual density variation, bulk density) show poor correlation with measured scattering coefficient.
Publisher
Institute of Electrical and Electronics Engineers
Permanent link
Link to ePress publication
DOI
10.1109/JSEN.2012.2211192
Copyright holder
Institute of Electrical and Electronics Engineers
Copyright notice
(c) 2012 IEEE.