Antivibration elastic suspension for inertial measuring unit
AssigneeThomson-CSF Sextant
InventorsPierre Gallon, Jacques Cordonnier
Life of this patent
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Abstract
An antivibration elastic suspension in which a chassis of an inertial measurement unit is placed inside a casing. The inertial measurement unit includes a gyro assembly that is fixed to the chassis by two support rings flexible in terms of torsion and rotation around a fixed axis of the chassis. At least one flexible annular diaphragm is coaxial with the fixed axis and the flexible annular diaphragm is fixed by an interior periphery to an exterior periphery of the chassis and by an exterior periphery to an interior wall of the casing. The flexible annular diaphragm respects a symmetry of revolution exhibited by the gyro assembly with respect to the fixed axis.
Claims20
An antivibration elastic suspension configured to attach a chassis of an inertial measurement unit to an inside of a casing,
- the inertial measurement unit comprising a gyro assembly configured to oscillatory rotate around a longitudinal fixed axis of the chassis and fixed into the chassis by two support rings flexible in terms of torsion and rotation, which are spaced along the chassis and centred along the fixed axis,
- said antivibration elastic suspension comprising:
- at least one flexible annular diaphragm configured to be coaxial with the fixed axis and fixed by an interior periphery to an exterior periphery of the chassis and by an exterior periphery to an interior wall of the casing.
An antivibration elastic suspension configured to attach a chassis of inertial measurement means to an inside of a casing,
- the inertial measurement means comprising gyro means for oscillatory rotating around a longitudinal fixed axis of the chassis, the gyro means fixed to the chassis by two support means flexible in terms of torsion and rotation, which are spaced along the chassis and centred along the fixed axis,
- said antivibration elastic suspension comprising:
- at least one flexible annular diaphragm means for flexibly anchoring the chassis to the casing, being coaxial with the fixed axis and fixed by an interior periphery to an exterior periphery of the chassis and by an exterior periphery to an interior wall of the casing.
Dependencies are inferred from the claim text.