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Dual-stage actuator disk drive with optimal location of the movable portion of the secondary actuator
Dual-stage actuator disk drive with optimal location of the movable portion of the secondary actuator
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机译:具有二级执行器可移动部分的最佳位置的双级执行器磁盘驱动器
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摘要
A dual-stage actuator disk drive has both a rotary primary actuator and a rotary secondary actuator. When the primary actuator initiates a seek there are two torque components acting on the center of mass of the secondary actuator's moving portion. The center of rotation of the moving portion is located at an optimal location relative to the center of mass of the moving portion, which results in cancellation of the two torque components and a secondary actuator that has essentially no resonant frequency in response to a seek by the primary actuator. If the optimal location can not be achieved because of assembly tolerances, then the center of rotation is placed at a distance at least as great as the assembly tolerance from the optimal location.
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