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Coriolis effect rotation rate sensor and method

  • US 5,604,311 A
  • Filed: 06/07/1995
  • Issued: 02/18/1997
  • Est. Priority Date: 06/07/1995
  • Status: Expired due to Fees
First Claim
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1. A sensor for sensing the Coriolis effect, comprising:

  • a mechanical structure, consisting of a base, a longitudinal member and one or more transverse members, said one or more transverse members being attached at their centers to the ends of said longitudinal member, said one or more transverse members and said longitudinal member lying in a plane, the ends of said one or more transverse members and any end of said longitudinal member not attached to a transverse member being attached to said base,a vibration generator for generating vibrations in said longitudinal member along an x-direction, said x-direction being in the plane of said one or more transverse members and said longitudinal member and parallel to said transverse members, anda vibration sensor for sensing vibrations in said one or more transverse members along a y-direction, said y-direction being in the plane of said one or more transverse members and said longitudinal member and parallel to said longitudinal member,said x-direction vibrations causing said one or more transverse members to vibrate along said y-direction when said base is rotated about a rotation axis that is orthogonal to said x and y-directions as a result of the Coriolis force exerted on said longitudinal member.

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