Hagedorn, MPlatt, IWoodhead, I2010-06-142009-10Hagedorn, M., Platt, I. G., & Woodhead, I. M. (2009). Timber characterisation using a non-invasive TDR sensor. In Proceedings of IEEE Sensors 2009 (pp. 984-987). Piscataway, NJ: IEEE.978-1-4244-4548-61930-0395BPT80 (isidoc)https://hdl.handle.net/10182/2055This 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 10 cm 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.pp.984-987en© 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Time Domain Reflectometry (TDR)time series analysismoisturenoninvasive TDR sensorpropagation delaystimber characterisationtimber industriessensorsConference Contribution - published10.1109/ICSENS.2009.5398210ANZSRC::0906 Electrical and Electronic Engineering