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    Glide testing of disks with calibration confirmation testing by inducing collision of the slider with production disk surface
    1.
    发明授权
    Glide testing of disks with calibration confirmation testing by inducing collision of the slider with production disk surface 失效
    通过引导滑块与生产磁盘表面的碰撞，通过校准确认测试来滑动测试磁盘

    公开(公告)号：US07064659B2

    公开(公告)日：2006-06-20

    申请号：US10931316

    申请日：2004-08-31

    申请人： Bradley Frederick Baumgartner ,  Norman Chu ,  Patricia Galindo ,  Hang Fai Ngo ,  Yu Lo ,  Nalin Zhou

    发明人： Bradley Frederick Baumgartner ,  Norman Chu ,  Patricia Galindo ,  Hang Fai Ngo ,  Yu Lo ,  Nalin Zhou

    IPC分类号： G08B29/00

    CPC分类号： G11B5/455 ,  G11B5/6005 ,  G11B5/6076 ,  G12B13/00 ,  Y10T29/49069 ,  Y10T29/49771

    摘要： A method is presented for glide testing a disk which tests the glide head fly-height by inducing a collision between the glide head and a disk under test. The glide test system is initially calibrated using calibration disks. The method of the invention periodically tests the calibration without interrupting the production testing by lowering the rotation rate until the glide head collides with the rotating disk surface. The rotation rate at which the collision occurs is then compared with the value expected based on knowledge of disk samples and the initial calibration. Parameters for acceptable high and low values are established to detect changes in the glide test system performance to trigger automatic or manual recalibration.

    摘要翻译： 提出了一种用于滑行测试的方法，其通过引起滑动头和被测盘之间的碰撞来测试滑翔头飞行高度。 滑行测试系统最初使用校准盘校准。 本发明的方法通过降低旋转速率来定期测试校准而不中断生产测试，直到滑动头与旋转的盘表面碰撞。 然后将碰撞发生的旋转速率与基于磁盘样本知识和初始校准的预期值进行比较。 建立可接受的高和低值的参数，以检测滑行测试系统性能的变化，以触发自动或手动重新校准。

    Glide testing of disks with calibration confirmation testing by inducing collision of the slider with production disk surface
    2.
    发明申请
    Glide testing of disks with calibration confirmation testing by inducing collision of the slider with production disk surface 失效
    通过引导滑块与生产磁盘表面的碰撞，通过校准确认测试来滑动测试磁盘

    公开(公告)号：US20060042073A1

    公开(公告)日：2006-03-02

    申请号：US10931316

    申请日：2004-08-31

    申请人： Bradley Baumgartner ,  Norman Chu ,  Patricia Galindo ,  Hang Ngo ,  Yu Lo ,  Nalin Zhou

    发明人： Bradley Baumgartner ,  Norman Chu ,  Patricia Galindo ,  Hang Ngo ,  Yu Lo ,  Nalin Zhou

    IPC分类号： H01F41/02 ,  G12B13/00

    CPC分类号： G11B5/455 ,  G11B5/6005 ,  G11B5/6076 ,  G12B13/00 ,  Y10T29/49069 ,  Y10T29/49771

    摘要： A method is presented for glide testing a disk which tests the glide head fly-height by inducing a collision between the glide head and a disk under test. The glide test system is initially calibrated using calibration disks. The method of the invention periodically tests the calibration without interrupting the production testing by lowering the rotation rate until glide head collides with the rotating disk surface. The rotation rate at which the collision occurs is then compared with the value expected based on knowledge of disk samples and the initial calibration. Parameters for acceptable high and low values are established to detect changes in the glide test system performance to trigger automatic or manual recalibration.

    摘要翻译： 提出了一种用于滑行测试的方法，其通过引起滑动头和被测盘之间的碰撞来测试滑翔头飞行高度。 滑行测试系统最初使用校准盘校准。 本发明的方法周期性地测试校准，而不会通过降低旋转速率来中断生产测试，直到滑动头与旋转盘表面碰撞。 然后将碰撞发生的旋转速率与基于磁盘样本知识和初始校准的预期值进行比较。 建立可接受的高低值参数，以检测滑行测试系统性能的变化，以触发自动或手动重新校准。

    System, method, and apparatus for glide head calibration with enhanced PZT channel for very low qualification glide heights
    3.
    发明申请
    System, method, and apparatus for glide head calibration with enhanced PZT channel for very low qualification glide heights 失效
    用于滑坡头校准的系统，方法和装置，具有增强的PZT通道，用于非常低的资格滑行高度

    公开(公告)号：US20050262922A1

    公开(公告)日：2005-12-01

    申请号：US10857195

    申请日：2004-05-28

    申请人： Norman Chu ,  Shanlin Duan ,  Patricia Galindo ,  Hang Ngo ,  Yu Lo ,  Nalin Zhou

    发明人： Norman Chu ,  Shanlin Duan ,  Patricia Galindo ,  Hang Ngo ,  Yu Lo ,  Nalin Zhou

    IPC分类号： G01B7/14 ,  G01B7/34 ,  G01B11/14 ,  G01B11/30 ,  G11B5/455 ,  G11B5/60

    CPC分类号： G11B5/6005 ,  G11B5/455

    摘要： A glide head calibration technique uses two fly height calibrations on a disk media certifier. The first calibration point uses a spin down on bump technique at a first height, and the second calibration point uses a spin down on disk media roughness at a second lower height. With two height data points, a fly height curve of each glide head is approximated very accurately. Once the fly height curve is derived for each head, any fly height can be dialed-in by the disk media certifier for glide testing. This technique achieves glide fly heights between about 4 nm and 8 nm and does so with improved tolerances.

    摘要翻译： 滑动头校准技术在磁盘介质验证器上使用两个飞行高度校准。 第一个校准点在第一个高度上使用一个旋转凹凸技术，第二个校准点在第二个较低高度的磁盘介质粗糙度上使用旋转。 使用两个高度数据点，每个滑行头的飞行高度曲线非常准确地近似。 一旦为每个头部导出了飞行高度曲线，则可以通过磁盘媒体验证者拨打任何飞行高度进行滑行测试。 该技术实现了约4nm和8nm之间的滑翔飞行高度，并且具有改进的公差。

    System, method, and apparatus for glide head calibration with enhanced PZT channel for very low qualification glide heights
    5.
    发明授权
    System, method, and apparatus for glide head calibration with enhanced PZT channel for very low qualification glide heights 失效
    用于滑坡头校准的系统，方法和装置，具有增强的PZT通道，用于非常低的资格滑行高度

    公开(公告)号：US07121133B2

    公开(公告)日：2006-10-17

    申请号：US10857195

    申请日：2004-05-28

    申请人： Norman Chu ,  Shanlin Duan ,  Patricia Galindo ,  Hang Fai Ngo ,  Yu Lo ,  Nalin Zhou

    发明人： Norman Chu ,  Shanlin Duan ,  Patricia Galindo ,  Hang Fai Ngo ,  Yu Lo ,  Nalin Zhou

    IPC分类号： G01B7/34

    CPC分类号： G11B5/6005 ,  G11B5/455

    摘要： A glide head calibration technique uses two fly height calibrations on a disk media certifier. The first calibration point uses a spin down on bump technique at a first height, and the second calibration point uses a spin down on disk media roughness at a second lower height. With two height data points, a fly height curve of each glide head is approximated very accurately. Once the fly height curve is derived for each head, any fly height can be dialed-in by the disk media certifier for glide testing. This technique achieves glide fly heights between about 4 nm and 8 nm and does so with improved tolerances.

    摘要翻译： 滑动头校准技术在磁盘介质验证器上使用两个飞行高度校准。 第一个校准点在第一个高度上使用一个旋转凹凸技术，第二个校准点在第二个较低高度的磁盘介质粗糙度上使用旋转。 使用两个高度数据点，每个滑行头的飞行高度曲线非常准确地近似。 一旦为每个头部导出了飞行高度曲线，则可以通过磁盘媒体验证者拨打任何飞行高度进行滑行测试。 该技术实现了约4nm和8nm之间的滑翔飞行高度，并且具有改进的公差。