Assessment of the dielectric anisotropy in timber using the nondestructive GPR technique
In the realm of architecture ground-penetrating radar has been used as nondestructive technique to assess physical properties of wood structures in situ. However, a better understanding of the dielectric anisotropy of timber is needed to develop this application. An experiment was conducted on samples of sawn timber of different species (densities) to study their dielectric responses according to the grain directions using a GPR with a 1.6 GHz antenna. Interesting differences were found the propagation velocities, as well as the amplitudes of the direct and reflected waves always presented lesser when the electric field was longitudinal to the grain than when transverse. But when the field was propagated in whatever transverse direction some of those parameters not differ greatly. © 2012 Elsevier Ltd. All rights reserved.
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dig-inia-es-20.500.12792-27732020-12-15T09:54:23Z Assessment of the dielectric anisotropy in timber using the nondestructive GPR technique Martínez-Sala, R. Rodríguez-Abad, I. Diez Barra, R. Capuz-Lladró, R. In the realm of architecture ground-penetrating radar has been used as nondestructive technique to assess physical properties of wood structures in situ. However, a better understanding of the dielectric anisotropy of timber is needed to develop this application. An experiment was conducted on samples of sawn timber of different species (densities) to study their dielectric responses according to the grain directions using a GPR with a 1.6 GHz antenna. Interesting differences were found the propagation velocities, as well as the amplitudes of the direct and reflected waves always presented lesser when the electric field was longitudinal to the grain than when transverse. But when the field was propagated in whatever transverse direction some of those parameters not differ greatly. © 2012 Elsevier Ltd. All rights reserved. 2020-10-22T13:28:26Z 2020-10-22T13:28:26Z 2013 journal article http://hdl.handle.net/20.500.12792/2773 10.1016/j.conbuildmat.2012.09.052 eng Attribution-NonCommercial-ShareAlike 4.0 International http://creativecommons.org/licenses/by-nc-sa/4.0/ open access |
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In the realm of architecture ground-penetrating radar has been used as nondestructive technique to assess physical properties of wood structures in situ. However, a better understanding of the dielectric anisotropy of timber is needed to develop this application. An experiment was conducted on samples of sawn timber of different species (densities) to study their dielectric responses according to the grain directions using a GPR with a 1.6 GHz antenna. Interesting differences were found the propagation velocities, as well as the amplitudes of the direct and reflected waves always presented lesser when the electric field was longitudinal to the grain than when transverse. But when the field was propagated in whatever transverse direction some of those parameters not differ greatly. © 2012 Elsevier Ltd. All rights reserved. |
| format |
journal article |
| author |
Martínez-Sala, R. Rodríguez-Abad, I. Diez Barra, R. Capuz-Lladró, R. |
| spellingShingle |
Martínez-Sala, R. Rodríguez-Abad, I. Diez Barra, R. Capuz-Lladró, R. Assessment of the dielectric anisotropy in timber using the nondestructive GPR technique |
| author_facet |
Martínez-Sala, R. Rodríguez-Abad, I. Diez Barra, R. Capuz-Lladró, R. |
| author_sort |
Martínez-Sala, R. |
| title |
Assessment of the dielectric anisotropy in timber using the nondestructive GPR technique |
| title_short |
Assessment of the dielectric anisotropy in timber using the nondestructive GPR technique |
| title_full |
Assessment of the dielectric anisotropy in timber using the nondestructive GPR technique |
| title_fullStr |
Assessment of the dielectric anisotropy in timber using the nondestructive GPR technique |
| title_full_unstemmed |
Assessment of the dielectric anisotropy in timber using the nondestructive GPR technique |
| title_sort |
assessment of the dielectric anisotropy in timber using the nondestructive gpr technique |
| publishDate |
2013 |
| url |
http://hdl.handle.net/20.500.12792/2773 |
| work_keys_str_mv |
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