Research Scientist and Product Development Engineer
Academic and professional history:
- 2008-present - Research Engineer
- 2000-2008 - Scientist and product development engineer, Streat Technology Ltd (seconded to Lincoln Ventures Ltd)
- 2000-2001 - Lecturer in analogue electronics, Department of Physics and Astronomy, University of Canterbury
- 1998-2000 - Scientist, Streat Instruments Ltd
- 1993-2000 - Quality Manager, Streat Instruments Ltd
- 1997-1998 - Production Manager, Streat Instruments Ltd
- 1981-2000 - Product development engineer,
Streat Instruments Ltd
Member of:
- Royal Society of New Zealand (Canterbury branch)
Research Subjects:
The moisture-dependent properties of hygroscopic solids, with special emphasis on electrical properties and the underlying physics
Current Projects:
SpectraSense Moisture Meter Electromagnetic modelling
Recent Publications:
Woodhead, I. M; Sobue, N; Platt, I G.; Christie, J.H. 2008. A Forward Solution for RF Impedance Tomography in Wood, Accepted for publication in Sensors and Transducer Journal.
Christie, J.H.; Woodhead, I.M. 2008. The Physical Basis of Dielectric Moisture Sensing. Special Issue of Sensors & Transducers Journal (ISSN 1726-5479), Vol.90, April 2008 on Modern Sensing Technologies, pp. 128-138.
Christie, J.H., Krenek, S.H., Woodhead, I.M. The Generic Properties of Hygroscopic Solids. I. Electrical Properties, submitted to Biosyst. Eng.
Christie, J.H., Sylvander,S.R., Woodhead, I.M., Irie, K. The dielectric properties of humid cellulose, Non-Cryst. Solids 341 (2004) 115.
Christie,J.H., Sylvander,S.R., Woodhead, I.M., Irie, K., The spectroscopic impedance of cellophane. Proc. 5th Int. Conf. on Electromagnetic Wave Interaction with Water and Moist Substances, Industrial Research Ltd, Auckland, 2003, p. 129.
Christie, J.H., Woodhead, I.M. A New Model of DC Conductivity of Hygroscopic Solids.* *Part I:
Cellulosic Materials. Text. Res. J. 72
(3) (2002) 273.
Christie, J.H., Woodhead, I.M., Krenek, S.H., Sedcole, J.R. A New Model of DC Conductivity of Hygroscopic Solids.* *Part II: Wool and Silk. Text. Res. J. 72 (4) (2002) 303.
Woodhead, I.M., Riding, P., Christie, J.H., Buchan, G.D. Non-Invasive Probing Of The Near-Surface Soil Moisture Profile. Proc. 5th Int. Conf. on Electromagnetic Wave Interaction with Water and Moist Substances, Industrial Research Ltd, Auckland, 2003, p. 254.
Woodhead, I.M., Buchan, G.D., Christie, J.H. Irie, K. A General Dielectric Model for Time Domain Reflectometry. Biosys. Eng. 86 (2) (2003) 207.
Tel: +64 3 325 3731
Fax: +64 3 325 3725
Email:firstname.
llastname@lvl.co.nz