Disc drive head actuator
    21.
    发明申请
    Disc drive head actuator 有权
    光盘驱动器头执行器

    公开(公告)号:US20080174919A1

    公开(公告)日:2008-07-24

    申请号:US11656919

    申请日:2007-01-23

    IPC分类号: G11B5/55

    摘要: A disc drive head actuator includes a suspension structure and a slider integrated with the suspension structure. The actuator is one of at least two actuator assemblies batch-fabricated on a common substrate. The head actuator may be fabricated using mircofabrication techniques. The head actuator may have a reduced size, including package height relative to conventionally manufactured disc drives. Using mircofabrication and/or batch fabrication techniques provides reduced tolerances, which allows for increased actuation forces and/or reduced power consumption. Some embodiments include four-bar linkage actuators, which increase lateral stiffness of the actuator, allowing for a precise motion of the head relative to a media surface.

    摘要翻译: 盘驱动头致动器包括悬架结构和与悬架结构一体的滑块。 致动器是在公共衬底上批量制造的至少两个致动器组件中的一个。 头致动器可以使用微加工技术来制造。 头致动器可以具有减小的尺寸,包括相对于常规制造的盘驱动器的包装高度。 使用微加工和/或批量制造技术提供了减小的公差,其允许增加的致动力和/或降低的功率消耗。 一些实施例包括四杆连杆致动器,其增加致动器的横向刚度,允许头相对于介质表面的精确运动。

    Feed forward control of voice coil motor induced microactuator disturbance
    22.
    发明授权
    Feed forward control of voice coil motor induced microactuator disturbance 有权
    音圈电机前馈控制引起微致动器干扰

    公开(公告)号:US06778350B2

    公开(公告)日:2004-08-17

    申请号:US09877345

    申请日:2001-06-08

    IPC分类号: G11B5596

    CPC分类号: G11B5/5552

    摘要: A method is used for moving a transducing head between tracks of a disc in a dual-stage actuation assembly. The dual-stage actuation assembly has a main actuator for coarse positioning of the transducing head and a microactuator for fine positioning of the transducing head. The method comprises accelerating the main actuator during coarse positioning of the transducing head and applying control pulses to the microactuator during coarse positioning by the main actuator to eliminate oscillation of the microactuator during and after coarse positioning.

    摘要翻译: 一种方法用于在双级致动组件中的盘的轨道之间移动换能头。 双级致动组件具有用于传感头粗略定位的主致动器和用于精细定位换能头的微致动器。 该方法包括在粗略定位转换头期间加速主致动器,并且通过主致动器粗略定位期间将控制脉冲施加到微致动器,以消除粗定位期间和之后的微致动器的振荡。

    System and Method for Multi-axis Simulation
    27.
    发明申请
    System and Method for Multi-axis Simulation 有权
    多轴仿真系统与方法

    公开(公告)号:US20090326837A1

    公开(公告)日:2009-12-31

    申请号:US12145822

    申请日:2008-06-25

    申请人: Andrew D. White

    发明人: Andrew D. White

    IPC分类号: G01L1/00

    摘要: A multi-axis fatigue testing device includes a multiple input, multiple output mechanical linkage driven by a plurality of actuators and a controller operating each of the plurality of actuators in real time and in synchronization to produce user-defined multiple fatigue cycle profiles. A startup method enables a sample mounted at an arbitrary multi-axis state to receive a desired simulation profile while maintaining the sample below any of the extremum values of the desired simulation profile.

    摘要翻译: 多轴疲劳测试装置包括由多个致动器驱动的多输入多输出机械联动器和实时地并且同步地操作多个致动器中的每一个的控制器,以产生用户定义的多个疲劳循环轮廓。 启动方法使得以任意多轴状态安装的样本能够接收期望的模拟轮廓,同时将样本保持在期望模拟轮廓的任何极值之下。

    HEAD ASSEMBLY HAVING A SENSING ELEMENT
    28.
    发明申请
    HEAD ASSEMBLY HAVING A SENSING ELEMENT 有权
    具有传感元件的头部组件

    公开(公告)号:US20090262460A1

    公开(公告)日:2009-10-22

    申请号:US12491605

    申请日:2009-06-25

    IPC分类号: G11B5/60

    摘要: A head or slider having a sensor element to detect changes in head-media spacing is disclosed. In illustrated embodiments the sensor element includes a piezoelectric sensor layer or similar layer that provides acoustic emission or vibration responsive to changes in head-media spacing. In illustrated embodiments, the sensor element is located proximate to the close point of the head and slider. In embodiments described in the specification, output from the sensor element is utilized to energize a heating element or microactuator to control pole tip protrusion or actuation of transducer elements responsive to changes in head-media spacing.

    摘要翻译: 公开了一种头部或滑块,其具有用于检测头部 - 介质间隔的变化的传感器元件。 在所示实施例中,传感器元件包括响应于头部 - 媒体间隔的改变而提供声发射或振动的压电传感器层或类似层。 在所示实施例中,传感器元件位于头部和滑块的接近点附近。 在说明书中描述的实施例中,来自传感器元件的输出用于激励加热元件或微型致动器,以响应于头部 - 介质间隔的变化来控制极尖突出或致动换能器元件。