Head, shaft head, using cast iron sleeve, wear durability, lifting equipment sub-two kinds of electric and manual.

水头、轴头、采用生铁套，耐磨耐用，提升装置分电动和手动两种。

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The continuous model is adopted in the torsional vibration frequency and resonance of shaft system, the lumped parameter equivalent applied in the sub-synchronous resonance.

轴系扭振频率和响应计算采用连续质量模型，次同步谐振特性分析采用集中质量模型。

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Incremental motion encoder (IME) is a new type of transducer for shaft center trace measurement with resolution up to sub-micro.

运动增量编码器(IME)是一种新型的轴心轨迹测量传感器，其测量灵敏度可以达到亚微米级。

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