Abstract：For three-dimensional space, a new method which can measure the nine inertial parameters of a rigid body simultaneously is proposed.With the law of motion that when aerostatic bearing move slowly its angular velocity is a single exponential function decayed with time, the moment of inertia of the rigid body rotating a axis in an arbitrary direction is obtained. through nine measurements, the inertial parameters of a rigid body can be got finally. A set of instrument used for measuring the rigid body inertial parameters is designed. This instrument can measure the nine inertial parameters of a rigid body in three-dimensional space simultaneously. There’s no need to re-assembly in the process of measurement, so intermediate testing quantity, error made by human and measuring time are all reduced.
王瑾,孙宁. 基于转动惯量的刚体9个惯性参数的测量[J]. 计量学报, 2012, 33(2): 135-139.
WANG Jin,SUN Ning. The Measurement of Nine Inertial Parameters of Rigid BodyBased on the Moment of Inertia. Acta Metrologica Sinica, 2012, 33(2): 135-139.
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2012, Vol. 33 
