×

Three axis inertial measurement unit with counterbalanced mechanical oscillator

  • US 4,996,877 A
  • Filed: 04/30/1990
  • Issued: 03/05/1991
  • Est. Priority Date: 02/24/1989
  • Status: Expired due to Term
First Claim
Patent Images

1. A three axis inertial measurement unit, comprising:

  • two counterbalanced mechanisms each mounted for mechanical oscillation at a natural frequency about a single axis wherein one mechanism counterbalances the other;

    said two counterbalanced mechanisms mounted by mounting means for imparting rotational motion thereto only in a respective plane of rotation perpendicular to said single axis;

    a plurality of accelerometers mounted on at least one of said counterbalanced mechanisms;

    each accelerometer having at least an input axis;

    said plurality of accelerometers mounted upon said at least one counterbalanced mechanism such that said input axis of each acceleromoter is at a predetermined angle to said single axis and to said single plane of rotation of said counterbalanced mechanisms.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×