Title :
Transmission line matrix model for detection of local changes in permeability using a microwave technique
Author :
Ciocan, Razvan ; Ida, Nathan
Author_Institution :
Phys. & Astron. Dept., Clemson Univ., SC, USA
fDate :
3/1/2004 12:00:00 AM
Abstract :
A three-dimensional transmission-line matrix model was developed to simulate the microwave detection of local changes in permeability. The technique can be used to map local nonuniformities in magnetization. Numerical modeling was carried out for frequencies that are commonly used in microwave nondestructive testing (0.8-1 GHz). A comparison between experimental and numerically generated curves is provided. This comparison validated the proposed numerical model.
Keywords :
microwave measurement; nondestructive testing; permeability; transmission line matrix methods; 0.8 to 1 GHz; TLM method; local nonuniformities; magnetization; microwave detection; microwave technique; nondestructive testing; numerical modeling; permeability; transmission line matrix model; Equations; Finite difference methods; Geometry; Magnetic field measurement; Microwave theory and techniques; Numerical models; Permeability; Solid modeling; Transmission line matrix methods; Transmission lines;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.824883
