光ディスク装置用対物レンズアクチュエータにおけるローリングモーメントの低減(情報機器コンピュータメカニクス2 -機構・制御,IIP2004 情報・知能・精密機器部門講演会)

概要

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Two kinds of actuator structure for optical disc drives reducing the rolling moment in the track coils were developed. One of the structures is an arrangement in which the track coils and magnets are crossed. That is, track coils on one side of the actuator are arranged inside the magnets, and those on the other side are arranged outside the magnets. The other structure uses two-pole magnets in opposition to the track coils. These two structures can cancel the vertical forces generated in the track coils, thus reduce the rolling moment. The experimental results show that the inclinations of the developed actuators at the resonance point in rolling mode were reduced to 60% and 20%, respectively, of the value for a conventional structure.
社団法人日本機械学会の論文
2004-03-22