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MAGNETIC SURFACE ACOUSTIC WAVE SENSOR APPARATUS AND METHOD

  • US 20100253326A1
  • Filed: 04/03/2009
  • Published: 10/07/2010
  • Est. Priority Date: 04/03/2009
  • Status: Active Grant
First Claim
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1. A sensor, comprising:

  • a magnetic film; and

    a surface acoustic wave device upon which said magnetic film is located, said surface acoustic wave device responsive to a magnetic field, wherein said magnetic field changes a conductivity of said magnetic material to generate a frequency shift measurable as a function of said magnetic field, said frequency shift indicative of a physical property detectable by said sensor.

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