Vibrating gyroscope and corresponding manufacturing process
AssigneeSagem Defense Securite
InventorAlain Jeanroy
Life of this patent
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Abstract
A vibrating gyroscope having a base, and a resonator. The resonator includes a body of generally cylindrical shape terminating in a distal face to the side opposite the base. The face includes at least one through hole, a plurality of piezoelectric elements placed in contact with the resonator, vibration control and processing modules arranged at least in part on the base, and at least one electrical connection passing through the body of the resonator via the hole, and electrically connecting the modules of the base and the plurality of piezoelectric elements for controlling and measuring the vibration of the resonator.
Claims9
A vibrating gyroscope (1), comprising:
- a base (2),
- a resonator (3), comprising a body of cylindrical form terminating in a face (5) at one end, said resonator being mechanically linked to said base,
- the face (5) comprising a plurality of through holes (13) arranged on the circumference of said face (5),
- a plurality of piezoelectric elements (10), arranged in contact with the face (5) of the resonator (3),
- modules (18) for the control and processing of vibration of the resonator, arranged, at least in part, in the base (2), and
- a plurality of electrical connections (15) passing through the body of the resonator (3) via at least one sub-assembly of said through holes (13), and electrically connecting said modules (18) and the plurality of piezoelectric elements (10) for controlling and measuring the vibration of the resonator (3).
A production process of a vibrating gyroscope (1), comprising steps of:
- providing a base (2),
- forming a resonator (3), comprising a body of cylindrical form terminating in a face (5) at one end,
- the face (5) comprising a plurality, of through holes (13) arranged on he circumference of said face (5),
- disposing a plurality of piezoelectric elements (10) in contact with the face (5) of the resonator (3),
- mechanically assembling the resonator (3) on the base (2),
- placing vibration control and processing modules (18) in the base (2), and
- electrically connecting said modules (18) and the plurality of piezoelectric elements (10) via a plurality of electrical connections (15) passing through the body of the resonator (3) via at least one sub-assembly of said through holes (13), for controlling and measuring vibration of the resonator (3).
Dependencies are inferred from the claim text.