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Phase Based Sensing

  • US 20100067018A1
  • Filed: 03/10/2008
  • Published: 03/18/2010
  • Est. Priority Date: 03/14/2007
  • Status: Active Grant
First Claim
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1. A method of interrogating a phase based transducer, said transducer providing a change in phase of signal propagation in response to a sensed parameter, said method comprising:

  • receiving a signal propagated through said transducer,comparing the signal at a point representing the state of the transducer at a first time, and at a point representing the state of the transducer at a second time, anddetermining from said comparison a measure of the rate of change of phase with time of said signal.

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