对称式三线摆

The Symmetrical trilinew torsion Peudulum

阐述了对称式三线摆的结构原理及其微角及大角摆动周期的近似计算方法。利用这种装置可以测量中小型构件的转动惯量 ;当R/L >2 0 ,ρ≤ 6 0°时 ,该装置的测量精确度优于 1%。

This paper described the constitution and principle of a Symmetrical trilinear torsion pendulum. It presented the Approximate Calculating methods of the period in small angle oscillation and large angle oscillation. The moment of inertia of small type bodies can be measured reliably by using this equipment. When R/L >20,φ 0≤60°,the accuracy of measurement with this equipment can be better than 1%.