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公开(公告)号：US5423207A
公开(公告)日：1995-06-13
申请号：US174948
申请日：1993-12-27
申请人： Karl A. Flechsig , Chih-Kung Lee , Sylvia L. Lee , Michael L. McGhee , Ullal V. Nayak , Timothy C. O'Sullivan , Josef Walian
发明人： Karl A. Flechsig , Chih-Kung Lee , Sylvia L. Lee , Michael L. McGhee , Ullal V. Nayak , Timothy C. O'Sullivan , Josef Walian
IPC分类号： G01B7/34 , G11B5/82 , G11B33/10 , H01L41/113 , G01B5/28 , H01L41/047 , H01L41/18
CPC分类号： G11B33/10 , G01B7/34 , H01L41/1132 , G11B5/82 , Y10S73/04
摘要： An enhanced piezoelectric sensor for detecting a predetermined bending mode frequency in the vibrational response of a slider with dimensions smaller than the conventional 100% slider during contact with one or more surface asperities on a recording surface. A method for making the enhanced sensor is also disclosed. The sensor comprises a substantiality rectangular slab of piezoelectric material having a charge response which corresponds to in-plane stress under free boundary conditions. Enhancement is achieved by partitioning an upper conductive layer along the lines of symmetry of the slider's stress distribution, which is related to the piezoelectric material's generated charge. In the preferred embodiment, the conductive layer is partitioned into two electrically isolated regions symmetric about the sensor's lateral axis. The design facilitates the isolation of a high frequency bending component which has been found to be monotonic with increasing surface asperity interference.
摘要翻译： 一种增强的压电传感器，用于在与记录表面上的一个或多个表面粗糙度接触期间检测尺寸小于常规100％滑块的滑块的振动响应中的预定弯曲模式频率。 还公开了一种用于制造增强型传感器的方法。 传感器包括具有对应于自由边界条件下的平面内应力的电荷响应的基本上矩形的压电材料板。 通过沿着与压电材料产生的电荷相关的滑块的应力分布的对称线分隔上导电层来实现增强。 在优选实施例中，导电层被划分成关于传感器的横向轴对称的两个电隔离区域。 该设计有助于高频弯曲部件的隔离，该部件已发现随着表面粗糙度的干扰增加而变得单调。
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2.发明授权Method and apparatus for optimizing piezoelectric surface asperity detection sensor 失效用于优化压电表面粗糙度检测传感器的方法和装置
公开(公告)号：US5581021A
公开(公告)日：1996-12-03
申请号：US482536
申请日：1995-06-07
IPC分类号： G01H11/08 , G11B33/10 , G01B5/28 , H01L41/047
摘要： Disclosed is a method and apparatus for sensing the vibrational response of a slider of predetermined dimensions during contact with one or more surface asperities on a recording surface, separating the response into its individual bending mode frequency component responses, determining one or more bending mode frequency responses which display monotonic behavior with increasing asperity interference, and designing a mode selection sensor optimized to detect the monotonic bending mode frequency identified. The mode enhanced sensor is designed by first analyzing the stress distribution of the slider corresponding to the monotonic bending mode frequency, identifying regions of the slider which experience substantially positive or substantially negative stress, and partitioning the upper conductive layer of a piezoelectric sensor to form a partitions corresponding to each of the identified regions. The sensor may be further enhanced by tailoring the partitions to exclude undesirable stress contributions.
摘要翻译： 公开了一种用于在与记录表面上的一个或多个表面粗糙度接触期间感测预定尺寸的滑块的振动响应的方法和装置，将响应分离成其单独的弯曲模式频率分量响应，确定一个或多个弯曲模式频率响应 其显示单调性行为随着越来越严重的干扰，并且设计了优化以检测所识别的单调弯曲模式频率的模式选择传感器。 通过首先分析对应于单调弯曲模式频率的滑块的应力分布来设计模式增强传感器，识别经历基本上正的或基本上负的应力的滑块的区域，以及分隔压电传感器的上导电层以形成 对应于每个识别的区域的分区。 可以通过调整隔板以排除不期望的应力贡献来进一步增强传感器。
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公开(公告)号：US5450747A
公开(公告)日：1995-09-19
申请号：US174484
申请日：1993-12-27
IPC分类号： G01H11/08 , G11B33/10 , G01B5/28 , H01L41/047
摘要： A method and apparatus for sensing the vibrational response of a slider of predetermined dimensions during contact with one or more surface asperities on a recording surface, separating the response into its individual bending mode frequency component responses, determining one or more bending mode frequency responses which display monotonic behavior with increasing asperity interference, and designing a mode selection sensor optimized to detect the monotonic bending mode frequency identified. The mode enhanced sensor is designed by first analyzing the stress distribution of the slider corresponding to the monotonic bending mode frequency, identifying regions of the slider which experience substantially positive or substantially negative stress, and partitioning the upper conductive layer of a piezoelectric sensor to form a partitions corresponding to each of the identified regions. The sensor may be further enhanced by tailoring the partitions to exclude undesirable stress contributions.
摘要翻译： 一种用于在与记录表面上的一个或多个表面粗糙度接触期间感测预定尺寸的滑块的振动响应的方法和装置，将响应分离成其单独的弯曲模式频率分量响应，确定显示的一个或多个弯曲模式频率响应 单调性行为随着越来越严重的干扰，并且设计了优化的模式选择传感器，以检测所识别的单调弯曲模式频率。 通过首先分析对应于单调弯曲模式频率的滑块的应力分布来设计模式增强传感器，识别经历基本上正的或基本上负的应力的滑块的区域，以及分隔压电传感器的上导电层以形成 对应于每个识别的区域的分区。 可以通过调整隔板以排除不期望的应力贡献来进一步增强传感器。
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公开(公告)号：US5631408A
公开(公告)日：1997-05-20
申请号：US606773
申请日：1996-02-27
申请人： Peter M. Baumgart , Karl A. Flechsig , Michael F. Lee , Wing P. Leung , Ullal V. Nayak , Thao A. Nguyen , Timothy C. O'Sullivan , Andrew C. Tam
发明人： Peter M. Baumgart , Karl A. Flechsig , Michael F. Lee , Wing P. Leung , Ullal V. Nayak , Thao A. Nguyen , Timothy C. O'Sullivan , Andrew C. Tam
CPC分类号： B82Y15/00 , B23K26/0823 , B82Y10/00 , G11B33/10 , G11B5/82 , G11B5/8404 , G11B5/8408 , Y10T29/49995
摘要： A method is provided for making crater shaped bumps on a magnetic disk. The crater shaped bumps have a diameter in the range of 10 to 25 .mu.m and a peripheral ridge with a height h.sub.r above a nominal surface of the calibration disk in the range of 75 to 120 nm. Close tolerance crater shaped bumps with this configuration can be made by impinging two or more pulses of laser energy on the same location of the disk. By increasing the number of pulses the height of the peripheral ridge progressively increases. By employing multiple pulses, the height of the peripheral ridge is increased while the diameter of the crater shaped bump stays substantially constant. Further, by employing multiple pulses diameters and heights of crater shaped bumps can be produced with close tolerances within a diameter range of 5 to 20 .mu.m and a height range of 2 to 120 nm.
摘要翻译： 提供了一种用于在磁盘上形成凹坑形凸起的方法。 火山口形凸块具有在10至25μm范围内的直径和在校准盘的标称表面上的高度hr在75至120nm范围内的周边脊。 可以通过在光盘的相同位置上照射两个或更多个激光能量脉冲来实现具有这种配置的紧密公差的凹坑形状的凸块。 通过增加脉冲数，周边脊的高度逐渐增加。 通过采用多个脉冲，周边脊的高度增加，而凹坑形凸起的直径基本保持不变。 此外，通过使用多个脉冲，可以在5〜20μm的直径范围内和2〜120nm的高度范围内产生具有紧密公差的凹坑形凸起的高度。
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5.发明授权
公开(公告)号：US5528922A
公开(公告)日：1996-06-25
申请号：US364562
申请日：1994-12-27
申请人： Peter M. Baumgart , Karl A. Flechsig , Michael F. Lee , Wing P. Leung , Ullal V. Nayak , Thao A. Nguyen , Timothy C. O'Sullivan , Andrew C. Tam
发明人： Peter M. Baumgart , Karl A. Flechsig , Michael F. Lee , Wing P. Leung , Ullal V. Nayak , Thao A. Nguyen , Timothy C. O'Sullivan , Andrew C. Tam
CPC分类号： B82Y15/00 , B23K26/0823 , B82Y10/00 , G11B33/10 , G11B5/82 , G11B5/8404 , G11B5/8408 , Y10T29/49995
摘要： A method is provided for making crater shaped bumps on a calibration disk which can be used for calibrating a PZT slider, the PZT slider in turn being used for detecting predetermined asperities on a production run magnetic disk. The crater shaped bumps emulate predetermined asperities of production run magnetic disks and especially asperities which are undesirable and would cause the production run disk to be discarded after testing by the PZT slider. Crater shaped bumps which emulate undesirable asperities on current production runs of magnetic disks have a diameter in the range of 10 to 25 .mu.m and a peripheral ridge with a height h.sub.r above a nominal surface of the calibration disk in the range of 75 to 120 nm. Close tolerance crater shaped bumps with this configuration can be made by impinging two or more pulses of laser energy on the same location of a calibration disk. By increasing the number of pulses the height of the peripheral ridge progressively increases. By employing multiple pulses, the height of the peripheral ridge is increased while the diameter of the crater shaped bump stays substantially constant. Further, by employing multiple pulses diameters and heights of crater shaped bumps can be produced with close tolerances within a diameter range of 5 to 20 .mu.m and a height range of 2 to 120 nm. Different arrangements of the crater shaped bumps on a calibration disk are provided for increasing the range of calibration of the PZT slider.
摘要翻译： 提供了一种用于在可用于校准PZT滑块的校准盘上形成凹坑形凸起的方法，PZT滑块又用于检测生产运行磁盘上的预定凹凸。 火山口形凸起模拟生产运行磁盘的预定粗糙度，特别是不期望的粗糙度，并且会在PZT滑块测试后导致生产运行盘被丢弃。 在当前的磁盘生产运行中模拟不期望的粗糙度的火山口形凸起具有在10至25μm的范围内的直径和在校准盘的标称表面上的高度hr在75至120nm范围内的周边脊 。 可以通过在校准盘的相同位置上照射激光能量的两个或更多个脉冲来实现具有该配置的紧公差凹坑形状的凸块。 通过增加脉冲数，周边脊的高度逐渐增加。 通过采用多个脉冲，周边脊的高度增加，而凹坑形凸起的直径基本保持不变。 此外，通过使用多个脉冲，可以在5〜20μm的直径范围内和2〜120nm的高度范围内产生具有紧密公差的凹坑形凸起的高度。 提供校准盘上的凹坑形突起的不同布置，用于增加PZT滑块的校准范围。
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6.发明授权Method and apparatus for providing a fluid damping structure with fuel cell for a hard disk drive and vibration sensitive electronic devices 有权用于为具有用于硬盘驱动器和振动敏感的电子设备的燃料电池提供流体阻尼结构的方法和装置公开(公告)号：US07538973B2
公开(公告)日：2009-05-26
申请号：US11388277
申请日：2006-03-24
IPC分类号： G11B33/14
CPC分类号： G11B33/08 , G11B25/043
摘要： A shock and vibration resistant hard disk drive has a plurality of fluid damping isolation devices disposed between the drive and a supporting frame. The isolation devices are capsules containing either gasses or liquids enclosed in a flexible membrane that spring back to its original shape after the shock or vibration event has transpired. Variation of fluid properties such as density, viscosity, and pressure allow for custom tuning of the vibration and shock performance. In addition, variation of membrane chemistry and thickness of the membrane also allows for further customization. A fuel cell is provided and the isolation devices may provide the energy source for the fuel cell.
摘要翻译： 抗冲击和抗振动的硬盘驱动器具有多个流体阻尼隔离装置，其设置在驱动器和支撑框架之间。 隔离装置是包含封闭在柔性膜中的气体或液体的胶囊，在冲击或振动事件发生后弹回到其原始形状。 流体特性如密度，粘度和压力的变化允许定制调整振动和冲击性能。 此外，膜的化学性质和膜的厚度的变化也允许进一步定制。 提供燃料电池，并且隔离装置可以为燃料电池提供能量源。
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公开(公告)号：US07251096B1
公开(公告)日：2007-07-31
申请号：US11257574
申请日：2005-10-24
IPC分类号： G11B21/02
摘要： Embodiments of the present invention recite a method for removing particles from a magnetic head support assembly of a hard disk drive. In one embodiment, a load/unload operation of the magnetic head support assembly is initiated. Particles are dislodged from the magnetic head support assembly by moving it across a physical feature of the load/unload ramp of the hard disk drive. This causes an acceleration of the magnetic head support assembly in a direction substantially perpendicular to its normal plane of movement which dislodges the particles. The particles are then conveyed away from the magnetic head support assembly in an airstream generated by the rotation of the disk pack of the hard disk drive.
摘要翻译： 本发明的实施例叙述了从硬盘驱动器的磁头支撑组件去除颗粒的方法。 在一个实施例中，开始磁头支撑组件的装载/卸载操作。 通过将其移动到硬盘驱动器的装载/卸载斜坡的物理特征上，从磁头支撑组件移除颗粒。 这导致磁头支撑组件在基本上垂直于其移除颗粒的正常运动平面的方向上的加速。 然后，颗粒在由磁盘驱动器的盘组的旋转产生的气流中从磁头支撑组件传送。
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公开(公告)号：US07874389B2
公开(公告)日：2011-01-25
申请号：US10995613
申请日：2004-11-23
CPC分类号： B60W10/08 , B60K6/52 , B60K7/0007 , B60K17/356 , B60W2720/28 , Y02T10/6265
摘要： A hybrid drive system for integrated vehicle stability control. Specifically, the hybrid drive system includes a multi-wheeled vehicle, a drop-in electric drive motor, and a master controller. The multi-wheeled vehicle is originally configured for propulsion using an internal combustion engine. That is, the present invention is suitable for powering legacy vehicles. The internal combustion engine capable of driving at least one wheel of the multi-wheeled vehicle. The remaining wheels of the multi-wheeled vehicle are not driven by the internal combustion engine. The drop-in electric drive motor is adapted to independently drive at least one remaining wheel on the multi-wheeled vehicle. The master controller is coupled to the drop-in electric drive motor. The master controller controls speeds of the remaining wheels driven by the electric drive motor to provide propulsion and overall stability management for the multi-wheeled vehicle.
摘要翻译： 一种用于集成车辆稳定性控制的混合动力系统。 具体地，混合动力驱动系统包括多轮车，落入式电驱动马达和主控制器。 该多轮车辆最初被配置为使用内燃机进行推进。 也就是说，本发明适用于为传统车辆供电。 能够驱动多轮车辆的至少一个车轮的内燃机。 多轮车辆的其余车轮不由内燃机驱动。 插入式电动马达适于独立地驱动多轮车上的至少一个剩余车轮。 主控制器耦合到滴入式电驱动电动机。 主控制器控制由电驱动电机驱动的剩余车轮的速度，为多轮车辆提供推进和整体稳定性管理。
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公开(公告)号：US08493688B2
公开(公告)日：2013-07-23
申请号：US12868610
申请日：2010-08-25
申请人： Rohit P. Ambekar , Karl A. Flechsig , Remmelt Pit , Oscar J. Ruiz
发明人： Rohit P. Ambekar , Karl A. Flechsig , Remmelt Pit , Oscar J. Ruiz
IPC分类号： G11B5/60
CPC分类号： G11B5/6082
摘要： A head slider for a disk drive storage device. The head slider is adapted to fly at the target height above the disk, reduce contamination by preventing particles from being trapped under the head slider, fly well in helium at low velocity and obtain a manufacturing tolerance so that multiple head sliders may be produced and function properly. The head slider has an internal cavity that is substantially enclosed by the air bearing surface. There are two gaps in the air bearing surface that are misaligned relative to the leading edge. The gaps aid in preventing particles from entering the cavity.
摘要翻译： 用于磁盘驱动器存储设备的磁头滑块。 磁头滑块适于在磁盘上方的目标高度处飞行，通过防止颗粒被捕获在磁头滑块下面来减少污染，并以低速度在氦气中良好地飞行，并获得制造公差，从而可以产生多个磁头滑块和功能 正确的 磁头滑块具有基本上被空气轴承表面封闭的内部空腔。 空气轴承表面有两个相对于前缘不对准的间隙。 间隙有助于防止颗粒进入腔体。
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公开(公告)号：US06678113B2
公开(公告)日：2004-01-13
申请号：US09812017
申请日：2001-03-19
IPC分类号： G11B3314
摘要： A device for monitoring lubricant within a disk drive includes a reservoir packet impregnated with lubricant. The reservoir packet is disposed between a first metal screen and a second metal screen such that a lubricant reservoir transducer is created. The capacitance of the lubricant reservoir packet is monitored and when it falls below a predetermined percentage of the initial capacitance, a user is warned to back up the files contained in the disk drive before failure due to lack of lubricant occurs.
摘要翻译： 用于监测盘驱动器内的润滑剂的装置包括浸渍有润滑剂的贮存器包。 贮存器包被设置在第一金属筛网和第二金属筛网之间，从而形成润滑剂储存器换能器。 监测润滑剂贮存器包的电容，当其下降到初始电容的预定百分比以下时，由于缺少润滑剂而在故障之前警告用户备份包含在盘驱动器中的文件。
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