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Microwave polarimetry tomography of wood
Institute for Terrestrial Ecology, ETH Zurich, CH-8952 Schlieren, Switzerland.
Halmstad University, School of Business and Engineering (SET), Mechanical Engineering and Industrial Design (MTEK).ORCID iD: 0000-0002-4826-019X
2005 (English)In: IEEE Sensors Journal, ISSN 1530-437X, E-ISSN 1558-1748, Vol. 5, no 2, p. 209-215Article in journal (Refereed) Published
Abstract [en]

In this paper, we present a new microwave-based method to make images of fiber structure, e.g., to locate knots in wood. Evaluation of Maxwell's equations for an electromagnetic wave propagating in an anisotropic media (wood) shows that the polarization of the wave depends on the local fiber orientation in the sample. Experiments support the theoretical evaluation showing that knots can be followed in images of polarimetric parameters, reconstructed from multiple monostatic measurements. The equipment works at low intensity and is, therefore, virtually harmless to human beings; furthermore, it can be made portable and be operated by a single person.

Place, publisher, year, edition, pages
New York: IEEE Sensors Council, 2005. Vol. 5, no 2, p. 209-215
Keywords [en]
Maxwell equations, Anisotropic media, Electromagnetic wave propagation, Fibres, Image reconstruction, Materials testing, Microwave imaging, Polarimetry, Tomography, Wood
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hh:diva-716DOI: 10.1109/JSEN.2004.841343ISI: 000227869800014Scopus ID: 2-s2.0-16444384029Local ID: 2082/1065OAI: oai:DiVA.org:hh-716DiVA, id: diva2:237934
Note

Copyright © 2005 IEEE. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Halmstads's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Available from: 2007-06-04 Created: 2007-06-04 Last updated: 2017-12-13Bibliographically approved

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