Title :
The Variation in the High-Frequency Resistance and Permeability of Ferromagnetic Materials due to a Superimposed Magnetic Field
Author_Institution :
University of Minnesota, Minneapolis, Minnesota
fDate :
4/1/1938 12:00:00 AM
Abstract :
The variation of the high-frequency resistance of ferromagnetic conductors as a function of a superimposed magnetic field is discussed. It is shown that very large changes in high-frequency resistance are obtainable in ferromagnetic conductors having high initial permeabilities. Some important applications of this effect are given. The application of high-frequency incremental permeability to remote tuning of radio circuits is briefly outlined.
Keywords :
Circuit optimization; Conducting materials; Conductors; Electric resistance; Geophysical measurements; Helium; Kelvin; Magnetic fields; Magnetic materials; Permeability;
Journal_Title :
Radio Engineers, Proceedings of the Institute of
DOI :
10.1109/JRPROC.1938.228129
