Subcontractors:
Streat Technology Ltd

Project Description

This objective is extending our very high impedance, low frequency dielectric spectroscopy techniques with spatial (tomographic) measurement. Bayesian techniques and dielectric models are being used to increase moisture measurement accuracy and facilitate measurement of other product variables, such as composition and density profile for foods and textiles, and will result in new, high-value instruments for export by NZ industry.  We are integrating our low frequency and broadband spectroscopic techniques to facilitate measurement of material properties by ultra-broadband spectroscopy (10^-3 to 10⁹ Hz).

Our research on the dielectric response of moist materials has resulted in a new model describing the nature of electric charge transport in the range 0 - 10¹¹ Hz. A new and very accurate moisture measurement sensor to provide the inputs required by the dielectric model is currently undergoing industrial trials.

Page last updated on 2 May 2005