专利名称：Method and apparatus for controlling
machinery
发明人：Noboru Sugimoto,Tsuyoshi Saito申请号：US09209278申请日：19981211公开号：US06269924B1公开日：20010807
专利附图：
摘要：The present invention realizes a high-precision positioning with high stability, byfully utilizing a Bingham fluid characteristic possessed by an ERF (electro-rheologicalfluid). To this end, motion of a driving part is transmitted to a movable part via shearing
stress of the ERF. Since the shearing stress can be variably controlled by adjusting anelectric field to be applied to the ERF, the movable part can be moved to a targetposition by a predetermined output. When the movable part is to be stopped, the drivingpart is decelerated and stopped to thereby thermally dissipate an excessive kineticenergy of the movable part. By keeping on applying an electric field at the time ofstopping, the movable part is exerted with an infinite apparent viscous stress by virtue ofthe Bingham fluid characteristic, to thereby suppress an influence of an external force.Further, by constituting a damping or braking part to include an ERF, it also becomespossible to render the shearing stress of ERF to act as a resisting force, thereby dampinga motion of the movable part.
申请人：NIPPON SHOKUBAI CO., LTD.
代理机构：McDermott, Will & Emery
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