Method and system for the individualized characterization of magnetic elements based on ferromagnetic resonance.

摘要

Method and system for the individualized characterization of magnetic elements based on ferromagnetic resonance.; The invention relates to a method and system for the characterization of a magnetic element (12) based on ferromagnetic resonance, said magnetic element (12) and ferromagnetic resonance frequency resonant. The system comprises:; - means for applying an electromagnetic field of low frequency (20) in a given area,; - means for applying an electromagnetic equal to the resonant frequency of the magnetic element in said same area high frequency wave (40),; - control means (10) configured to control the simultaneous application of said electromagnetic field of low frequency and said electromagnetic wave high frequency, so that in response to the introduction of the magnetic element in said area the magnetic element absorbs the electromagnetic wave high frequency with a frequency equal to the low frequency magnetic field so that said wave is modulated. The system further comprises:; - receiving means (61) of this unique modulated wave, individual and characteristic for each element, and; - assigning means (60, 70, 10) of said modulated wave to the element only.