In an optical disk system, a tracking system consists of a coarse actuator and a fine tracking actuator. The double actuality system requires many devices in order to obtain large strokes and precise displacement simultaneously. Moreover the moving parts become sophisticated because of the complicated configuration. In this paper a new one-dimensional tracking actuator combining a fine tracking actuator and a coarse actuator is designed. The voice coil motor is used as a basic drive mechanism. The permeance method is used to analyze and to design VCM for large driving forces and its characteristic is tested through experiments. The focus spring is designed in terms of the stability and characteristics of the system. Since friction is a dominant error source, friction identification is carried out. The designed actuator shows its ability to resolve a motion less than 0.1 /spl mu/m.
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机译：在光盘系统中，跟踪系统由粗致动器和细致动器组成。双重现实系统需要许多设备才能同时获得较大的行程和精确的位移。此外，由于复杂的构造，运动部件变得复杂。本文设计了一种新型的一维跟踪致动器，其结合了精细跟踪致动器和粗糙致动器。音圈电动机用作基本驱动机构。磁导率法用于分析和设计大驱动力的VCM，并通过实验测试了其特性。根据系统的稳定性和特性设计聚焦弹簧。由于摩擦是主要的误差源，因此需要进行摩擦识别。设计的执行器显示出解决小于0.1 / spl mu / m的运动的能力。
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