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Apparatus for measuring inertial specific force and angular rate of a moving body

  • US 4,590,801 A
  • Filed: 05/28/1985
  • Issued: 05/27/1986
  • Est. Priority Date: 09/02/1983
  • Status: Expired due to Term
First Claim
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1. Apparatus for measuring the specific force and angular rate of a moving body, by means of a plurality of accelerometers mounted on mutually perpendicular axes and cyclically driven by drive means in mutually perpendicular planes to produce output signals comprised of the specific force and angular rate, characterized in that:

  • each accelerometer defines a force-sensing axis and a mass, each accelerometer is mounted for vibratory movement along a first vibration axis which is substantially perpendicular to its force sensing axis in its respective plane;

    each accelerometer is vibrated by said drive means along its first axis;

    each accelerometer is joined to a counterbalancing mass for counterbalancing the mass of the accelerometer; and

    each accelerometer is connected to processor means for generating, from the output of the accelerometer and the angular rate "ω

    " of vibration of the accelerometer, the specific force and angular rate vector of the moving body using the function "sgn cos ω

    t".

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