1kN·m高精度扭矩标准机的研制

The Develop of 1kN·m High Torque Standard Device

介绍了1kN·m高精度扭矩标准机的结构与工作原理,对空气轴承的承载及稳定性进行了分析,对标准力臂进行了有限元分析,并对装置展开了测量不确定度分析。结果表明,设计的1kN·m扭矩标准机扩展不确定度能达到0.01%(k=2)。

It describes the structure and working principle of 1kN·m torque standard machine, and analyses the load capacity and stability of the air bearing, and makes finite element analysis on the standard arm, besides, the uncertainty of measurement of the device is analysed. The result shows that the expanded uncertainty of this device reaches 0.01% （ k = 2）.