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Abstract

Many sensing applications use imaging of target materials to map specific parameters of interest. Most often such imaging employs electromagnetic radiation over a wavelength regime chosen to the highlight the physical properties sought. In this talk, a recently developed form of imaging using the electromagnetic field generated by a guided pulse propagating along a pair of transmission lines will be presented. The interaction of the incident electric field with the polarisable material of the sample can be used to map its composition, particularly its water distribution since water has a high permittivity compared to most other naturally occurring materials. Examples where this technique has been used to determine the structural properties of timber and the integrity of road sub course material will be given along with emerging applications in areas where other forms imaging are not feasible.


Biography

Dr Ian Platt started his scientific career as a theoretical physicist studying the propagation of electromagnetic waves in plasmas, in which he earned a PhD from La Trobe University Australia. Over the intervening 25 years he has been employed as a the researcher in this field by the University of Massachusetts (US), the United States Air Force, Telecom Australia, La Trobe University, UK Ministry of Defence (now QinetiQ) and RLM Systems (a joint venture between Lockheed Martin and Tenix). Since joining Lincoln Agritech in 2004 his interest in electromagnetic propagation has revolved around the development of new sensor devices including, Time Domain Reflectometry moisture measurement and imaging, Structural sensing using Optical Fibres and Time Domain Reflectometry, Radar application to remote sensing and Stochastic modeling for use in DSP applications.