公开(公告)号：US07724462B2

公开(公告)日：2010-05-25

申请号：US12184300

申请日：2008-08-01

申请人： Shanlin Duan ,  Jizhong He ,  John Stephen Hopkins ,  Yansheng Luo

发明人： Shanlin Duan ,  Jizhong He ,  John Stephen Hopkins ,  Yansheng Luo

IPC分类号： G11B21/02 ,  G11B27/36

CPC分类号： G11B5/6005

摘要： A method models and calibrates the fly height of a slider above the disk for disk drives. The calibration scheme uses the Wallace spacing loss equation and laser doppler velocimetry to predict fly height and detect the actual fly height of the slider. The slider is vibrated at selected resonances, such as by capacitive coupling to the disk, and the fly height is gradually reduced. In one version, contact between the slider and disk may be detected using an arm electronics sensor. The amplitude of mean-to-peak, vibration detection is used as an indication of the actual fly height and to calibrate the modeled fly height.

摘要翻译： 一种方法建模和校准磁盘驱动器磁盘上方的浮动高度。 校准方案使用华莱士间距损失方程和激光多普勒测速来预测飞行高度并检测滑块的实际飞行高度。 滑块以所选择的谐振振动，例如通过电容耦合到盘，并且飞行高度逐渐减小。 在一个版本中，可以使用臂电子传感器来检测滑块和盘之间的接触。 使用平均峰值振幅检测的幅度作为实际飞行高度的指示，并校准建模的飞行高度。

公开(公告)号：US20100142344A1

公开(公告)日：2010-06-10

申请号：US12709554

申请日：2010-02-22

申请人： Shanlin Duan ,  Jizhong He ,  John Stephen Hopkins ,  Yansheng Luo

发明人： Shanlin Duan ,  Jizhong He ,  John Stephen Hopkins ,  Yansheng Luo

IPC分类号： G11B27/36

CPC分类号： G11B5/6005

摘要： A method models and calibrates the fly height of a slider above the disk for disk drives. The calibration scheme uses the Wallace spacing loss equation and laser doppler velocimetry to predict fly height and detect the actual fly height of the slider. The slider is vibrated at selected resonances, such as by capacitive coupling to the disk, and the fly height is gradually reduced. In one version, contact between the slider and disk may be detected using an arm electronics sensor. The amplitude of mean-to-peak, vibration detection is used as an indication of the actual fly height and to calibrate the modeled fly height.

摘要翻译： 一种方法建模和校准磁盘驱动器磁盘上方的浮动高度。 校准方案使用华莱士间距损失方程和激光多普勒测速来预测飞行高度并检测滑块的实际飞行高度。 滑块以所选择的谐振振动，例如通过电容耦合到盘，并且飞行高度逐渐减小。 在一个版本中，可以使用臂电子传感器来检测滑块和盘之间的接触。 使用平均峰值振幅检测的幅度作为实际飞行高度的指示，并校准建模的飞行高度。

公开(公告)号：US20100027152A1

公开(公告)日：2010-02-04

申请号：US12184300

申请日：2008-08-01

申请人： Shanlin Duan ,  Jizhong He ,  John Stephen Hopkins ,  Yansheng Luo

发明人： Shanlin Duan ,  Jizhong He ,  John Stephen Hopkins ,  Yansheng Luo

IPC分类号： G11B21/02

CPC分类号： G11B5/6005

摘要： A method models and calibrates the fly height of a slider above the disk for disk drives. The calibration scheme uses the Wallace spacing loss equation and laser doppler velocimetry to predict fly height and detect the actual fly height of the slider. The slider is vibrated at selected resonances, such as by capacitive coupling to the disk, and the fly height is gradually reduced. In one version, contact between the slider and disk may be detected using an arm electronics sensor. The amplitude of mean-to-peak, vibration detection is used as an indication of the actual fly height and to calibrate the modeled fly height.

摘要翻译： 一种方法建模和校准磁盘驱动器磁盘上方的浮动高度。 校准方案使用华莱士间距损失方程和激光多普勒测速来预测飞行高度并检测滑块的实际飞行高度。 滑块以所选择的谐振振动，例如通过电容耦合到盘，并且飞行高度逐渐减小。 在一个版本中，可以使用臂电子传感器来检测滑块和盘之间的接触。 使用平均峰值振幅检测的幅度作为实际飞行高度的指示，并校准建模的飞行高度。

公开(公告)号：US20080137225A1

公开(公告)日：2008-06-12

申请号：US11609811

申请日：2006-12-12

申请人： Shanlin Duan ,  Jizhong He ,  John Stephen Hopkins

发明人： Shanlin Duan ,  Jizhong He ,  John Stephen Hopkins

IPC分类号： G11B21/02

CPC分类号： G11B5/6058 ,  G11B5/5534 ,  G11B5/6052 ,  G11B5/6076

摘要： An apparatus, system, and method are disclosed for fly height detection. The apparatus includes an actuator configured to induce vibrations in a glide head that is configured to detect physical asperities on a disk surface. The apparatus may also include a second end of the suspension arm coupled with the glide head and a sensor module that is configured to communicate with a control module in response to the glide head coming in contact with at least one physical asperity. The system includes the apparatus, a disk having a surface comprising physical asperities, and a head gimbal assembly configured to calibrate a fly height margin for the disk. The method includes inducing vibrations in a glide head, detecting physical asperities on a disk surface, and communicating with a control module in response to the glide head coming in contact with at least one physical asperity.

摘要翻译： 公开了用于飞行高度检测的装置，系统和方法。 该装置包括致动器，其构造成在滑动头中引起被配置为检测盘表面上的物理粗糙度的振动。 该装置还可以包括悬挂臂的与滑行头连接的第二端和传感器模块，该传感器模块被配置成响应于滑动头与至少一个物理凹凸接触而与控制模块通信。 该系统包括装置，具有包括物理粗糙度的表面的盘以及被配置为校准盘的飞行高度余量的头部万向节组件。 该方法包括在滑动头部引起振动，检测盘表面上的物理粗糙度，以及响应于滑动头与至少一个物理粗糙度接触而与控制模块通信。

公开(公告)号：US20110026167A1

公开(公告)日：2011-02-03

申请号：US12511840

申请日：2009-07-29

申请人： Shanlin Duan ,  Jizhong He ,  John Stephen Hopkins

发明人： Shanlin Duan ,  Jizhong He ,  John Stephen Hopkins

IPC分类号： G11B5/48

CPC分类号： G11B5/6005 ,  G11B5/102 ,  G11B5/40

摘要： Reducing slider bounce within a hard disk drive. A force is received at a first material while the first material is in contact with a disk of a hard disk drive; the first material comprising a portion that is flexible in a first direction and is substantially non-flexible in a second direction. The first direction is a direction that is normal to the disk and the second direction is a direction that is parallel to a surface of the disk. The force is substantially absorbed by the portion that is flexible to reduce the force associated with interaction between the first material and the disk, thereby reducing slider bounce within the hard disk drive

摘要翻译： 减少滑块在硬盘驱动器内弹起。 当第一材料与硬盘驱动器的盘接触时，在第一材料处接收力; 所述第一材料包括在第一方向上是柔性的并且在第二方向上基本上不柔性的部分。 第一方向是与盘垂直的方向，第二方向是平行于盘的表面的方向。 该力基本上被柔性部分吸收，以减少与第一材料和盘之间的相互作用相关联的力，从而减少硬盘驱动器内的滑块反弹

公开(公告)号：US08958178B2

公开(公告)日：2015-02-17

申请号：US12511840

申请日：2009-07-29

申请人： Shanlin Duan ,  Jizhong He ,  John Stephen Hopkins

发明人： Shanlin Duan ,  Jizhong He ,  John Stephen Hopkins

IPC分类号： G11B17/32 ,  G11B5/60 ,  G11B5/10 ,  G11B5/40

CPC分类号： G11B5/6005 ,  G11B5/102 ,  G11B5/40

摘要： Reducing slider bounce within a hard disk drive. A force is received at a first material while the first material is in contact with a disk of a hard disk drive; the first material comprising a portion that is flexible in a first direction and is substantially non-flexible in a second direction. The first direction is a direction that is normal to the disk and the second direction is a direction that is parallel to a surface of the disk. The force is substantially absorbed by the portion that is flexible to reduce the force associated with interaction between the first material and the disk, thereby reducing slider bounce within the hard disk drive.

摘要翻译： 减少滑块在硬盘驱动器内弹起。 当第一材料与硬盘驱动器的盘接触时，在第一材料处接收力; 所述第一材料包括在第一方向上是柔性的并且在第二方向上基本上不柔性的部分。 第一方向是与盘垂直的方向，第二方向是平行于盘的表面的方向。 该力基本上被柔性部分吸收，以减少与第一材料和盘之间的相互作用相关联的力，从而减少硬盘驱动器内的滑块反弹。

公开(公告)号：US07692888B2

公开(公告)日：2010-04-06

申请号：US11609811

申请日：2006-12-12

申请人： Shanlin Duan ,  Jizhong He ,  John Stephen Hopkins

发明人： Shanlin Duan ,  Jizhong He ,  John Stephen Hopkins

IPC分类号： G11B21/02

CPC分类号： G11B5/6058 ,  G11B5/5534 ,  G11B5/6052 ,  G11B5/6076

摘要： An apparatus, system, and method are disclosed for fly height detection. The apparatus includes an actuator configured to induce vibrations in a glide head that is configured to detect physical asperities on a disk surface. The apparatus may also include a second end of the suspension arm coupled with the glide head and a sensor module that is configured to communicate with a control module in response to the glide head coming in contact with at least one physical asperity. The system includes the apparatus, a disk having a surface comprising physical asperities, and a head gimbal assembly configured to calibrate a fly height margin for the disk. The method includes inducing vibrations in a glide head, detecting physical asperities on a disk surface, and communicating with a control module in response to the glide head coming in contact with at least one physical asperity.

摘要翻译： 公开了用于飞行高度检测的装置，系统和方法。 该装置包括致动器，其构造成在滑动头中引起被配置为检测盘表面上的物理粗糙度的振动。 该装置还可以包括悬挂臂的与滑行头连接的第二端和传感器模块，该传感器模块被配置成响应于滑动头与至少一个物理凹凸接触而与控制模块通信。 该系统包括装置，具有包括物理粗糙度的表面的盘以及被配置为校准盘的飞行高度余量的头部万向节组件。 该方法包括在滑动头部引起振动，检测盘表面上的物理粗糙度，以及响应于滑动头与至少一个物理粗糙度接触而与控制模块通信。