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Author Hagedorn, M. ♦ Platt, I.G. ♦ Woodhead, I.M.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2009
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Sensor phenomena and characterization ♦ Transmission line measurements ♦ Time measurement ♦ Reflectometry ♦ Moisture ♦ Inspection ♦ Impedance matching ♦ Permittivity measurement ♦ Pulse measurements ♦ Space vector pulse width modulation
Abstract This paper utilizes the technique of Time Domain Reflectometry (TDR) to aid in the characterization of timber. The electric field of TDR sensor is very sensitive to moisture trapped within the timber and can thus be used to infer anomalies in the grain down to a depth of approximately 10cm below its surface. This novel application of non-invasive TDR indicates the presence of timber characteristics such as size and frequency of knots, splits and decay by a time series analysis of the propagation delays as the TDR sensor probe is moved along the timber surface.
Description Author affiliation: Lincoln Ventures Ltd., Christchurch, New Zealand (Hagedorn, M.; Platt, I.G.; Woodhead, I.M.)
ISBN 9781424445486
ISSN 19300395
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2009-10-25
Publisher Place New Zealand
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 1.54 MB
Page Count 4
Starting Page 984
Ending Page 987

Source: IEEE Xplore Digital Library