Angular rate producer with microelectromechanical system technology

DC CAFC
  • US 6,311,555 B1
  • Filed: 11/17/1999
  • Issued: 11/06/2001
  • Est. Priority Date: 11/17/1999
  • Status: Expired due to Term
First Claim
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1. An angular rate producer with microelectromechanical system technology for measuring a vehicle angular rate, comprising:

  • an angular rate detecting unit receiving dither drive signal to maintain an oscillation of at least one set of inertial element with constant momentum and producing angular motion-induced signals with respect to said vehicle angular rate and inertial element dither motion signals;

    an interfacing means for converting said angular motion-induced signals from said angular rate detecting unit into consistent and repeatable angular rate signals that are proportional to said vehicle angular rate, and converting said inertial element dither motion signals from said angular rate detecting unit into digital element displacement signals with predetermined phase; and

    a digital processing system for inputting said digital element displacement signals for producing said dither drive signal for locking high-quality factor frequency and amplitude of said oscillating inertial element in said angular rate detecting unit.

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