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公开(公告)号：US06292316B1
公开(公告)日：2001-09-18
申请号：US09267147
申请日：1999-03-11
IPC分类号： G11B2736
CPC分类号： G01R33/1207 , G01Q30/02 , G01Q30/025 , G11B5/82 , G11B33/10 , Y10S977/725 , Y10S977/863 , Y10S977/865
摘要： A magnetic disk tester which also incorporates a sensor such as an AFM or MFM is described. The device is able directly and quickly to detect and characterize sub-micrometric defects on the surface of magnetic disks. A process for finding and characterizing defects on a magnetic disk according to the invention comprises the steps of rotating the magnetic disk using a spindle motor; writing data on the magnetic disk at selected positions; finding a position on the magnetic disk having a defect which produces an error when reading the data from the magnetic disk; determining coordinates of the defect referenced from an index on the disk; stopping the spindle motor; positioning a sensing device such as an AFM or MFM head over the defect; and sensing characteristics of the defect which aid in determining a cause of the defect. A magnetic disk examination device embodying the invention comprises a spindle rotably connected to a spindle motor; a magnetic read/write head mounted on an actuator; a magnetic read/write tester for writing then reading magnetic data on the magnetic disk while rotating to find a position on the magnetic disk which produces read errors; a sensor mounted on an actuator which can be a second actuator or the same as the one for the read/write head; a positioning system which places the sensor at the position of the error while the magnetic disk is stationary; and a data acquisition system which gathers data using the sensor.
摘要翻译： 还描述了还包括诸如AFM或MFM的传感器的磁盘测试器。 该装置能够直接快速地检测和表征磁盘表面的亚微米缺陷。 根据本发明的用于发现和表征磁盘上的缺陷的过程包括以下步骤：使用主轴电动机旋转磁盘; 在选定位置在磁盘上写入数据; 在磁盘上找到具有从磁盘读取数据时产生错误的缺陷的位置; 确定从磁盘上的索引引用的缺陷的坐标; 停止主轴电机; 将诸如AFM或MFM头的感测装置定位在缺陷上; 以及感测缺陷的特征，这有助于确定缺陷的原因。 体现本发明的磁盘检查装置包括可旋转地连接到主轴电机的主轴; 安装在致动器上的磁读/写头; 用于写入的磁读/写测试器，同时在旋转的同时在磁盘上读取磁数据以找到产生读错误的磁盘上的位置; 安装在致动器上的传感器，其可以是第二致动器或与用于读/写头的致动器相同; 定位系统，其在磁盘静止时将传感器放置在误差位置; 以及使用传感器收集数据的数据采集系统。
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公开(公告)号：US07612555B2
公开(公告)日：2009-11-03
申请号：US10580766
申请日：2004-10-29
申请人： Andreas Dietzel , Marcus Breuer , Hubert Grimm , Karl-Heinz Lehnhert , Nikolaus Luckner , Rolf Schaefer , Guenther Michaelis
发明人： Andreas Dietzel , Marcus Breuer , Hubert Grimm , Karl-Heinz Lehnhert , Nikolaus Luckner , Rolf Schaefer , Guenther Michaelis
CPC分类号： G01D5/145 , Y10T29/4902
摘要： A high-resolution magnetic encoder system includes a magnetic resistive sensor, a fixed suspension, and a mechanism. The magnetic resistive sensor is mounted to the fixed suspension above a magnetic medium having at least one magnetic track. The fixed suspension is attached to the mechanism, such as a housing, a substrate, and/or an electronic board. The sensor is adapted to perform a relative movement with respect to and in close contact to the surface of the magnetic medium. The magnetic medium may be protected by an overcoat layer. The magnetic resistive sensor may be Giant Magnetic-Resistive (GMR) sensor and/or a Tunneling Magnetic-Resistive Sensor (TMR).
摘要翻译： 高分辨率磁编码器系统包括磁阻传感器，固定悬架和机构。 磁阻传感器安装在具有至少一个磁道的磁介质上方的固定悬架上。 固定悬架附接到机构，例如壳体，基板和/或电子板。 传感器适于执行相对于磁介质表面的紧密接触的相对运动。 磁性介质可以被外涂层保护。 磁阻传感器可以是巨磁电阻（GMR）传感器和/或隧道磁阻传感器（TMR）。
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公开(公告)号：US08274277B2
公开(公告)日：2012-09-25
申请号：US12550369
申请日：2009-08-29
申请人： Andreas Dietzel , Marcus Breuer , Hubert Grimm , Karl-Heinz Lehnhert , Nikolaus Luckner , Rolf Schaefer , Guenther Michaelis
发明人： Andreas Dietzel , Marcus Breuer , Hubert Grimm , Karl-Heinz Lehnhert , Nikolaus Luckner , Rolf Schaefer , Guenther Michaelis
CPC分类号： G01D5/145 , Y10T29/4902
摘要： A high-resolution magnetic encoder system includes a magnetic resistive sensor, a fixed suspension, and a mechanism. The magnetic resistive sensor is mounted to the fixed suspension above a magnetic medium having at least one magnetic track. The fixed suspension is attached to the mechanism, such as a housing, a substrate, and/or an electronic board. The sensor is adapted to perform a relative movement with respect to and in close contact to the surface of the magnetic medium. The magnetic medium may be protected by an overcoat layer. The magnetic resistive sensor may be Giant Magnetic-Resistive (GMR) sensor and/or a Tunneling Magnetic-Resistive Sensor (TMR).
摘要翻译： 高分辨率磁编码器系统包括磁阻传感器，固定悬架和机构。 磁阻传感器安装在具有至少一个磁道的磁介质上方的固定悬架上。 固定悬架附接到机构，例如壳体，基板和/或电子板。 传感器适于执行相对于磁介质表面的紧密接触的相对运动。 磁性介质可以被外涂层保护。 磁阻传感器可以是巨磁电阻（GMR）传感器和/或隧道磁阻传感器（TMR）。
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公开(公告)号：US20100045270A1
公开(公告)日：2010-02-25
申请号：US12550369
申请日：2009-08-29
申请人： Andreas Dietzel , Marcus Breuer , Hubert Grimm , Karl-Heinz Lehnhert , Nikolaus Luckner , Rolf Schaefer , Guenther Michaelis
发明人： Andreas Dietzel , Marcus Breuer , Hubert Grimm , Karl-Heinz Lehnhert , Nikolaus Luckner , Rolf Schaefer , Guenther Michaelis
IPC分类号： G01B7/14
CPC分类号： G01D5/145 , Y10T29/4902
摘要： A high-resolution magnetic encoder system includes a magnetic resistive sensor, a fixed suspension, and a mechanism. The magnetic resistive sensor is mounted to the fixed suspension above a magnetic medium having at least one magnetic track. The fixed suspension is attached to the mechanism, such as a housing, a substrate, and/or an electronic board. The sensor is adapted to perform a relative movement with respect to and in close contact to the surface of the magnetic medium. The magnetic medium may be protected by an overcoat layer. The magnetic resistive sensor may be Giant Magnetic-Resistive (GMR) sensor and/or a Tunneling Magnetic-Resistive Sensor (TMR).
摘要翻译： 高分辨率磁编码器系统包括磁阻传感器，固定悬架和机构。 磁阻传感器安装在具有至少一个磁道的磁介质上方的固定悬架上。 固定悬架附接到机构，例如壳体，基板和/或电子板。 传感器适于执行相对于磁介质表面的紧密接触的相对运动。 磁性介质可以被外涂层保护。 磁阻传感器可以是巨磁电阻（GMR）传感器和/或隧道磁阻传感器（TMR）。
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公开(公告)号：US20070268017A1
公开(公告)日：2007-11-22
申请号：US10580766
申请日：2004-10-29
申请人： Andreas Dietzel , Marcus Breuer , Hubert Grimm , Karl-Heinz Lehnhert , Nikolaus Luckner , Rolf Schaefer , Guenther Michaelis
发明人： Andreas Dietzel , Marcus Breuer , Hubert Grimm , Karl-Heinz Lehnhert , Nikolaus Luckner , Rolf Schaefer , Guenther Michaelis
CPC分类号： G01D5/145 , Y10T29/4902
摘要： A high-resolution magnetic encoder system includes a magnetic resistive sensor, a fixed suspension, and a mechanism. The magnetic resistive sensor is mounted to the fixed suspension above a magnetic medium having at least one magnetic track. The fixed suspension is attached to the mechanism, such as a housing, a substrate, and/or an electronic board. The sensor is adapted to perform a relative movement with respect to and in close contact to the surface of the magnetic medium. The magnetic medium may be protected by an overcoat layer. The magnetic resistive sensor may be Giant Magnetic-Resistive (GMR) sensor and/or a Tunneling Magnetic-Resistive Sensor (TMR).
摘要翻译： 高分辨率磁编码器系统包括磁阻传感器，固定悬架和机构。 磁阻传感器安装在具有至少一个磁道的磁介质上方的固定悬架上。 固定悬架附接到机构，例如壳体，基板和/或电子板。 传感器适于执行相对于磁介质表面的紧密接触的相对运动。 磁性介质可以被外涂层保护。 磁阻传感器可以是巨磁电阻（GMR）传感器和/或隧道磁阻传感器（TMR）。
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公开(公告)号：US06359755B1
公开(公告)日：2002-03-19
申请号：US09354941
申请日：1999-07-15
IPC分类号： G11B548
CPC分类号： G11B5/484
摘要： Briefly, in a preferred embodiment, the present invention comprises a suspension having a structured surface hardening. This surface hardening may be comprised of thin film stripes of material such as nitrides, carbides, and adamantine carbon. The hardened layer has a thickness in the range of 10-100 nm.
摘要翻译： 简言之，在优选实施例中，本发明包括具有结构化表面硬化的悬浮液。 该表面硬化可以由诸如氮化物，碳化物和金刚烷碳的材料的薄膜条构成。 硬化层的厚度在10-100nm的范围内。
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7.发明授权公开(公告)号：US06665258B1
公开(公告)日：2003-12-16
申请号：US09609458
申请日：2000-07-03
IPC分类号： G11B700
CPC分类号： G11B5/00 , B82Y10/00 , G11B9/14 , G11B9/1409 , G11B9/1418 , G11B9/1472 , G11B9/149 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021 , Y10S977/861 , Y10S977/863 , Y10S977/875 , Y10S977/943
摘要： A method and apparatus for recording and storing information on and reproducing information from a storage medium is described, wherein the active storage medium forms part of the write/read signal path.
摘要翻译： 描述了一种用于从存储介质记录和再现信息的信息的方法和装置，其中活动存储介质形成写/读信号路径的一部分。
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公开(公告)号：US07123431B2
公开(公告)日：2006-10-17
申请号：US10629451
申请日：2003-07-29
IPC分类号： G11B15/18
摘要： An apparatus for exactly positioning a medium mounted on a spindle is provided, whereby the apparatus comprises a device for continuously changing the angular position of said medium with respect to a predefined reference position by rotating said spindle. Additionally, the apparatus comprises a friction element for braking said spindle at a predetermined position, not allowing a swing back.
摘要翻译： 提供一种用于精确地定位安装在心轴上的介质的装置，由此该装置包括用于通过旋转所述心轴来连续地改变所述介质相对于预定参考位置的角位置的装置。 此外，该装置包括用于在预定位置制动所述心轴的摩擦元件，不允许回摆。
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9.发明授权Method and apparatus for dynamically controlling the flying behavior and height of a read/write head in a storage device by manipulating the spring constant of the suspension 有权用于通过操纵悬架的弹簧常数来动态地控制存储装置中读/写头的飞行行为和高度的方法和装置公开(公告)号：US06707646B2
公开(公告)日：2004-03-16
申请号：US09920475
申请日：2001-08-01
IPC分类号： G11B556
CPC分类号： G11B5/6005 , G11B5/4833 , G11B5/607 , G11B7/122 , G11B11/1058 , G11B21/21
摘要： A suspension arm (300) of a disk storage device has an elastic portion (310) with thickness d1 and a rigid portion (320) with thickness d2. At the free end of the suspension arm, a slider (325) is mounted on the suspension arm. The bottom surface of the slider has a distance FH to a top surface of a hard disk (329). The suspension arm particularly comprises a heating element (330) disposed on the suspension arm. An electric current Ic flowing through electrical supply wires (350) causes the temperature of the suspension arm locally to rise and therefore its spring constant to decrease. Together with the force Fa resulting from the air cushion effect of the slider a new equilibrium flying height FH is stabilized.
摘要翻译： 盘存储装置的悬架臂（300）具有厚度为d1的弹性部分（310）和厚度为d2的刚性部分（320）。 在悬架臂的自由端处，悬架臂上安装有滑块（325）。 滑块的底面与硬盘（329）的上表面具有距离FH。 悬架臂特别地包括设置在悬架臂上的加热元件（330）。 流过电源线（350）的电流Ic使悬臂的温度局部上升，因此其弹簧常数降低。 与由滑块的气垫效应产生的力Fa一起，稳定了新的平衡飞行高度FH。
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公开(公告)号：US06297630B1
公开(公告)日：2001-10-02
申请号：US09263695
申请日：1999-03-05
IPC分类号： G01R3309
CPC分类号： G11B5/455 , G01R33/09 , G01R33/10 , G11B5/127 , G11B5/3166
摘要： A process permits the determination of multi-dimensional distribution of magnetic fields. The process uses a magneto-resistive sensor as a physical measuring device. The measuring device is coupled with a method for algebraic reconstruction so that sectional images of the field distribution are calculated from individual measurements of the magneto-resistive effect using the algebraic reconstruction.
摘要翻译： 一个过程允许确定磁场的多维分布。 该过程使用磁阻传感器作为物理测量装置。 测量装置与用于代数重建的方法相耦合，以便使用代数重建从磁阻效应的各个测量值计算场分布的截面图像。
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