New Evaluation Method of Dielectric Materials Using a Microwave Technique
- 1 August 1980
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electrical Insulation
- Vol. EI-15 (4) , 340-349
- https://doi.org/10.1109/tei.1980.298261
Abstract
A new nondestructive method of evaluating changes in characteristics or detecting internal defects in insulation materials with microwave techniques is discussed. The main feature of the method is that the amplitude and phase angle of a detected signal are displayed in a polar co-ordinate system, which allows changes in both the dielectric constant and loss tangent of a dielectric material to be obtained at the same time. The results of experiment on deterioration, the detection of foreign materials, and differences in the inner structure of complex insulation materials are shown.Keywords
This publication has 1 reference indexed in Scilit:
- Microwave Circuit Design by Digital ComputerIEEE Transactions on Microwave Theory and Techniques, 1969