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US 4,541,590 AGranted
Roll measuring device
AssigneeThe Commonwealth of Australia
InventorJames O. Bolton
Life of this patent
Estimating the term…
Abstract
A roll measuring device for missiles comprising an inertia member supported about an axis by a case and provided with means whereby rotation of the case relative to the inertia member about the said axis can be measured, the inertia member being balanced about the axis so as to be rotationally uninfluenced by gravity or movement medial or angular to the axes.
Claims3
A roll measuring device for a missile released from an aircraft with relatively small velocity variation from that of the aircraft, comprising
- (a) a case non-rotationally secured to the missile about the missile flight axis,
- (b) an undriven inertia member in the said case, shaped so that its mass is balanced about a shaft extending along the said axis to be rotationally uninfluenced by gravity or movement medial or angular to the said axis,
- (c) a first low-friction bearing on a first side of the said inertia member supporting one end portion of the said shaft from the said case,
- (d) a second low-friction bearing on the other side of the said inertia member supporting the other end portion of the said shaft from the said case,
- (e) means to measure rotation of the said case about the said inertia member when the said missile is released from the aircraft whereby correction of the roll of the said missile about is flight axis can be controlled,
- (f) a brake between the said inertia member and the said case, and
- (g) means to release the brake when the said missile is released from the said aircraft.
4 more elements
Dependencies are inferred from the claim text.