扭摆法测量刚体转动惯量的误差定量分析

Quantitative error analysis for moment of inertia using torsion pendulum method

以圆柱形刚体为研究对象,推导了刚体轴线与仪器转轴不重合情况下的转动惯量误差表达式,进一步给出了均匀细棒和均匀薄圆盘的误差表达式,且定量地给出了误差,并对其结果进行了分析,为改进测量方法及实际应用提供了理论依据.

We calculated the moment of inertia while axes of rigid-body wasn＇t coincide with instruments based on the columniform rigid-body. The conclusion can be used to uniform thin stick and disc by proximate way. And the concludes was discussed, which can be used to improve the measure method and promote the practice application.