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

  • US 20070187513A1
  • Filed: 02/14/2007
  • Published: 08/16/2007
  • Est. Priority Date: 02/14/2006
  • Status: Active Grant
First Claim
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1. Method for the individualized characterization of a magnetic element (12) based on ferromagnetic resonance, in which said magnetic element exhibits the property of ferromagnetic resonance and a resonance frequency of its own, said method comprising the following steps:

  • application in a given area of a low-frequency electromagnetic field,simultaneous application in the same area of a electromagnetic wave of a high frequency the same as the characteristic resonance frequency of the magnetic element,insertion of the magnetic element in said given area, with the result that it absorbs the high-frequency electromagnetic wave with a frequency the same as that of the low-frequency electromagnetic field, so said wave is modulated,reception of this unique and individual modulated wave characteristic of each magnetic element, andassignment of said unique modulated wave to the magnetic element.

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