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Method of determining a speed of rotation of an axially symmetrical vibrating sensor, and a corresponding inertial device

  • US 8,186,219 B2
  • Filed: 02/09/2009
  • Issued: 05/29/2012
  • Est. Priority Date: 08/23/2007
  • Status: Active Grant
First Claim
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1. A method of determining a speed of rotation of an axially symmetrical vibrating sensor having a vibrating member associated with control electrodes and with detection electrodes for generating vibration presenting an elastic line possessing periodicity of order n and having a position that is variable as a function of a rotation of the sensor, the method comprising the steps of:

  • performing evaluations of the speed of rotation successively for a predetermined number of positions of the vibration relative to the detection electrodes;

    the positions being geometrically offset relative to each other and the vibration being moved from one position to another by applying a precession command using a pre-established scale factor;

    determining a speed of rotation in function of the evaluations.

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