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Microelectromechanical gyroscope with open loop reading device and control method

  • US 9,217,641 B2
  • Filed: 07/15/2014
  • Issued: 12/22/2015
  • Est. Priority Date: 02/13/2007
  • Status: Active Grant
First Claim
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1. A device, comprising:

  • a first mass;

    a second mass coupled to the first mass to oscillate in response to the first mass;

    a driving circuit coupled to the first mass to form a feedback control loop and to maintain the first mass in oscillation at a resonance frequency;

    a reading circuit coupled to the second mass to detect displacements of the second mass; and

    a read signal generator structured to supply to the second mass at least one read signal that varies with the resonance frequency.

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