Patent ID: 6888073
Filing Date: 2005-05-03
Classification: B64G,F16F

Abstract:
1. A microgravitational rotating apparatus vibration control system, wherein said microgravitational rotating apparatus comprises: a casing; a rotary shaft provided within said casing, having both ends thereof supported by bearings and rotationally driven by a motor; a plurality of arms extending radially having first ends fitted to a circumferential periphery of said rotary shaft; a rotator having a plurality of boxes fitted to other ends of said plurality of arms in which a gravitational or gravity-adding object can be placed; wherein vibration occurring in said rotator can be controlled by said bearings; a plurality of side plates in each of said plurality of boxes fitted substantially parallel to side wall inner surfaces of said boxes via spring members; an acceleration sensor fitted to each of said plurality of side plates; a distance sensor fitted to an inner surface of each of said boxes corresponding to and close to said plurality of side plates to measure a distance to the object; and a computing unit operable to receive acceleration signals from said acceleration sensor when the object collides with one of said side plates, displacement signals of said spring members when the object collides with the one of said side plates and position signals of said distance sensor of an initial position of the object before the object collides with the one of said side plates and a position of the object when the object collides with the one of said side plates, and operable to compute the mass of the object based on the acceleration signals, displacement signals and position signals.