MASS-LOADED CORIOLIS VIBRATORY GYROSCOPE
First Claim
Patent Images
1. A mass-loaded resonator for use in a vibratory sensor:
- a common base having a top face, a bottom face and a plurality of sides; and
a plurality of flexures attached to the common base and projecting substantially perpendicular from the normal of the top face of the common base when the mass-loaded resonator is at rest, wherein the plurality of flexures have a thickness that is substantially less than the thickness of the common base.
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Abstract
A mass-loaded resonator for use in a vibratory sensor is disclosed. In at least one embodiment, the mass-loaded resonator includes a common base having a top face, a bottom face and a plurality of sides. Furthermore, a plurality of flexures are attached to the common base and project substantially perpendicular from the normal of the top face of the common base when the mass-loaded resonator is at rest. Moreover, the plurality of flexures have a thickness that is substantially less than the thickness of the common base.
6 Citations
20 Claims
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1. A mass-loaded resonator for use in a vibratory sensor:
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a common base having a top face, a bottom face and a plurality of sides; and a plurality of flexures attached to the common base and projecting substantially perpendicular from the normal of the top face of the common base when the mass-loaded resonator is at rest, wherein the plurality of flexures have a thickness that is substantially less than the thickness of the common base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for constructing a mass-loaded resonator comprising:
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patterning a plurality of flexures in a material using a first etch method; and releasing the plurality of flexures according to the pattern using a second etch method; patterning a common base using a third etch method, wherein the common base has a top face, a bottom face and a plurality of sides and wherein the common base has a thickness that is substantially greater than the thickness of the plurality of flexures and wherein the plurality of flexures are attached to the common base and project substantially perpendicular from the normal of the top face of the common base when the mass-loaded resonator is at rest; and releasing the common base according to the pattern using a fourth etch method. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A mass-loaded resonator gyroscope, comprising:
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a support plate; a mass-loaded resonator including; a common base having a top face, a bottom face and a plurality of sides; and a plurality of flexures attached to the common base and projecting substantially perpendicular from the normal of the top face of the common base when the mass-loaded resonator is at rest, wherein the plurality of flexures have a thickness that is substantially less than the thickness of the common base; and a plurality of electrodes attached to the mass-loaded resonator, wherein the plurality of flexures are configured to excite the mass-loaded resonator into two degenerate modes when at least one electric field is applied to the plurality of electrodes. - View Dependent Claims (19, 20)
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Specification