Abstract
An original method of determining the electric conductivity of spheroidal inclusions of the order of a few microns is described. The measurements are made in an open cavity at microwave frequencies. In order to produce sufficient perturbations inside the cavity, a composite made up of dielectric and conductive media had to be designed. By combining the model of the dielectric properties of the composite with the model of the operating conditions of the open cavity, we show that it is possible to determine the conductivity of a unique inclusion by using an analytical expression. Measurements are presented which concern a type of carbon fiber with several micrometers diameter and a few millimeters length. The results obtained for different samples validate the method; they can be used as a reference in the microwave range.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: IEEE Transactions on Instrumentation and Measurement
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.