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Gimballed vibrating wheel gyroscope having strain relief features

  • US 5,650,568 A
  • Filed: 05/12/1995
  • Issued: 07/22/1997
  • Est. Priority Date: 02/10/1993
  • Status: Expired due to Term
First Claim
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1. A micromechanical vibrating wheel gyroscope comprising:

  • a support oriented in a first plane;

    a wheel assembly disposed over said support and parallel to said first plane, said wheel assembly comprising an inner hub and an outer wheel coupled to said inner hub by at least one spoke, said outer wheel being adapted for vibrating rotationally in said first plane about a drive axis and being responsive to a rotational rate about an input axis coplanar to said first plane for providing an output torque about an output axis coplanar to said first plane, wherein said outer wheel has a plurality of finger-like members extending therefrom and wherein said at least one spoke has a box-shaped region therein;

    a post assembly between said support and said wheel assembly for flexibly suspending said wheel assembly over said support, said post assembly comprising at least one post extending from said support and at least one post flexure extending laterally from said at least one post to said inner hub of said wheel assembly; and

    a plurality of drive electrodes supported over said support and having a plurality of finger-like members extending therefrom and being interleaved with said plurality of finger-like members extending from said outer wheel of said wheel assembly.

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