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1. 发明授权

US5801531A Apparatus and method for testing magnetic heads using translational slides and a rotatable arm 失效
标题翻译：使用平移滑块和可旋转臂测试磁头的装置和方法
公开(公告)号：US5801531A
公开(公告)日：1998-09-01
申请号：US544090
申请日：1996-01-18
申请人： Elliot Viches , Mostafa Mahmoudian , Jagdeep S. Buttar , Oleg A. Gergel , Patrick A. Weber , Victor Rudman , Harry Ray Duer
发明人： Elliot Viches , Mostafa Mahmoudian , Jagdeep S. Buttar , Oleg A. Gergel , Patrick A. Weber , Victor Rudman , Harry Ray Duer
IPC分类号： G11B5/012 , G11B5/455 , G11B5/48 , G11B33/10 , G01R33/12 , G11B5/54 , G11B21/14
CPC分类号： G11B5/012 , G11B33/10 , G11B5/455 , G11B5/4806
摘要： An apparatus for testing magnetic heads that interact with magnetic disks includes a translational slide and a rotatable arm mounted to one end of the slide. The translational slide moves the rotatable arm in a longitudinal direction parallel to the surface of a magnetic disk. The arm rotates the magnetic head to different positions relative to data tracks on the disk. A second translational slide moves the magnetic head vertically above the disk to adjust the vertical position of the head. The three movements of the head, (1)horizontally across the disk, (2)rotationally by the arm, and (3)vertically relative to the disk surface are controlled by servomechanisms. A read/write amplifier circuit is connected to the head under test. The test apparatus is controlled by a computer that interfaces with circuitry connected to the servomechanisms.
摘要翻译：用于测试与磁盘相互作用的磁头的装置包括平移滑块和安装到滑块的一端的可旋转臂。平移滑动件使平行于磁盘表面的纵向移动可旋转臂。手臂将磁头相对于磁盘上的数据轨道旋转到不同的位置。第二平移滑块将磁头垂直地移动到盘的上方以调节头的垂直位置。头部的三个运动，（1）水平地跨越盘，（2）由臂旋转，（3）相对于盘表面垂直地由伺服机构控制。读/写放大器电路连接到被测头。测试装置由与连接到伺服机构的电路连接的计算机控制。

2. 发明授权

US5844420A Fixture for testing a head gimbal assembly employing a flex interconnect circuit 失效
标题翻译：用于测试使用柔性互连电路的头万向架组件的夹具
公开(公告)号：US5844420A
公开(公告)日：1998-12-01
申请号：US788331
申请日：1997-01-27
申请人： Patrick A. Weber , Mostafa Mahmoudian , Victor Rudman , Oleg A. Gergel
发明人： Patrick A. Weber , Mostafa Mahmoudian , Victor Rudman , Oleg A. Gergel
IPC分类号： G11B5/455 , G11B5/48 , G11B21/16 , G11B33/10 , G01R31/02 , H01R13/629 , H01R13/639
CPC分类号： G11B5/486 , G11B21/16 , G11B5/4806 , G11B33/10 , G11B5/455 , H01R12/88
摘要： A test mixture for testing a head gimbal assembly has a flex interconnect circuit with one or more test pads, and includes a clamp assembly and a connector board. The clamp assembly is secured to the connector board for locking the test pads in position. The connector board includes probing pins that contact the test pads in order to establish an electrical path with the head gimbal assembly. The clamp assembly includes a base and a self-locking mechanism, with the base serving as an interface between the self-locking mechanism and the connector board. The self-locking mechanism serves to position the test pads in a desired relation relative to the probing pins and to clamp the test pads during testing. The self-locking mechanism includes a clamp arm having a guiding slide that receives part of the flex interconnect circuit for positioning the test pads within the self-locking mechanism. The connector board is secured to a magnetic test cartridge.
摘要翻译：用于测试头万向架组件的测试混合物具有带有一个或多个测试焊盘的柔性互连电路，并且包括夹具组件和连接器板。夹具组件固定到连接器板上，用于将测试垫锁定在适当位置。连接器板包括与测试焊盘接触以便与头部万向节组件建立电气路径的探针。夹具组件包括底座和自锁机构，底座用作自锁机构和连接器板之间的界面。自锁机构用于将测试垫相对于探针定位成期望的关系，并在测试期间夹紧测试垫。自锁机构包括具有引导滑块的夹持臂，该导向滑块接收柔性互连电路的一部分，用于将测试垫定位在自锁机构内。连接器板固定在磁性测试盒上。

3. 发明授权

US06225799B1 Method and apparatus for testing magnetic heads and hard disks 失效
标题翻译：用于测试磁头和硬盘的方法和装置
公开(公告)号：US06225799B1
公开(公告)日：2001-05-01
申请号：US09197745
申请日：1998-11-23
申请人： Oleg A. Gergel , Mostafa Mahmoudian
发明人： Oleg A. Gergel , Mostafa Mahmoudian
IPC分类号： G01N1902
CPC分类号： G01N19/02 , G11B5/455 , G11B5/54 , G11B33/10 , G11B2005/001
摘要： A method and apparatus for start-stop testing magnetic heads and hard disks in real disk-drive environment is provided. The tester has essentially the same dimensions as a conventional disk drive so that rotation of the disk pack inside the tester housing generates the same aerodynamic conditions as in a real disk drive. An accurate head positioning system, the operation of which does not depend on the deterioration of the magnetic conditions of the head and disk, is located inside the tester housing, and the friction and sticking forces can be measured till the moment of physical crash inside the housing. An essential advantage of the tester of the invention in that the measurement and positioning systems are combined into a single unit. The aforementioned combined system is based on the use of a Hall-effect sensor attached to the voice coil of the type used in the disk drive. Friction forces between the magnetic heads and the disks are measured by utilizing a voltage applied to the voltage-to-current converter.
摘要翻译：提供了一种用于在实际磁盘驱动器环境中停止测试磁头和硬盘的方法和装置。测试仪具有与常规磁盘驱动器基本相同的尺寸，使得盘组件在测试器壳体内的旋转产生与真实磁盘驱动器中相同的空气动力学条件。精确的头部定位系统，其操作不依赖于磁头和磁盘的磁条件的劣化，位于测试器壳体内部，并且可以测量摩擦力和粘着力直到内部物理碰撞的时刻住房。本发明的测试器的一个重要优点在于测量和定位系统被组合成单个单元。上述组合系统基于使用附接到磁盘驱动器中使用的音圈的霍尔效应传感器。通过利用施加到电压 - 电流转换器的电压来测量磁头和磁盘之间的摩擦力。

4. 发明授权

US5668477A Noise detecting apparatus for magnetic heads 失效
标题翻译：磁头噪声检测装置
公开(公告)号：US5668477A
公开(公告)日：1997-09-16
申请号：US389301
申请日：1995-02-16
申请人： Mostafa Mahmoudian , Jagdeep S. Buttar , Oleg A. Gergel , Neil Motiska
发明人： Mostafa Mahmoudian , Jagdeep S. Buttar , Oleg A. Gergel , Neil Motiska
IPC分类号： G11B5/31 , G11B5/455 , G11B19/04 , G11B20/18 , G11B27/36 , G01B27/36 , G01R33/12
CPC分类号： G11B19/04 , G11B27/36 , G11B5/3163 , G11B5/455 , G11B20/182 , G11B5/3113
摘要： A testing apparatus for detecting popcorn noise in magnetic heads comprises a fully integrated testing system which includes an analog circuit portion and a digital circuit portion. The analog circuit portion is implemented to interface with a magnetic head while the digital circuit portion is designed to store the testing sequence, analyze the testing data, control and execute the testing routines. The testing apparatus is designed for production environments where testing data are required instantaneously as feedback for production process monitoring.
摘要翻译：用于检测磁头中的爆米花噪声的测试装置包括完全集成的测试系统，其包括模拟电路部分和数字电路部分。模拟电路部分被实现为与磁头接口，而数字电路部分设计成存储测试序列，分析测试数据，控制和执行测试程序。测试装置设计用于生产环境，其中需要测试数据作为生产过程监控的反馈。

5. 发明授权

US6099362A Apparatus and method for testing magnetic disk drive components 失效
标题翻译：用于测试磁盘驱动器组件的装置和方法
公开(公告)号：US6099362A
公开(公告)日：2000-08-08
申请号：US78003
申请日：1998-05-13
申请人： Elliot Viches , Mostafa Mahmoudian , Jagdeep S. Buttar , Oleg A. Gergel , Patrick A. Weber , Victor Rudman , Harry Ray Duer
发明人： Elliot Viches , Mostafa Mahmoudian , Jagdeep S. Buttar , Oleg A. Gergel , Patrick A. Weber , Victor Rudman , Harry Ray Duer
IPC分类号： G11B5/012 , G11B5/455 , G11B5/48 , G11B33/10 , H01R4/48
CPC分类号： G11B5/012 , G11B33/10 , G11B5/455 , G11B5/4806
摘要： An apparatus for testing magnetic heads that interact with magnetic disks includes a translational slide and a rotatable arm mounted to one end of the slide. The translational slide moves the rotatable arm in a longitudinal direction parallel to the surface of a magnetic disk. The arm rotates the magnetic head to different positions relative to data tracks on the disk. A second translational slide moves the magnetic head vertically above the disk to adjust the vertical position of the head. The three movements of the head, (1)horizontally across the disk, (2)rotationally by the arm, and (3)vertically relative to the disk surface are controlled by servomechanisms. A read/write amplifier circuit is connected to the head under test. The test apparatus is controlled by a computer that interfaces with circuitry connected to the servomechanisms.
摘要翻译：用于测试与磁盘相互作用的磁头的装置包括平移滑块和安装到滑块的一端的可旋转臂。平移滑动件使平行于磁盘表面的纵向移动可旋转臂。手臂将磁头相对于磁盘上的数据轨道旋转到不同的位置。第二平移滑块将磁头垂直地移动到盘的上方以调节头的垂直位置。头部的三个运动，（1）水平地跨越盘，（2）由臂旋转，（3）相对于盘表面垂直地由伺服机构控制。读/写放大器电路连接到被测头。测试装置由与连接到伺服机构的电路连接的计算机控制。

6. 发明授权

US5438273A System for testing the voice coil element of a disk drive rotary actuator 失效
标题翻译：用于测试磁盘驱动器旋转执行器的音圈元件的系统
公开(公告)号：US5438273A
公开(公告)日：1995-08-01
申请号：US299524
申请日：1994-09-01
申请人： Oleg A. Gergel , Mostafa Mahmoudian , Jagdeep S. Buttar , Neil Motiska
发明人： Oleg A. Gergel , Mostafa Mahmoudian , Jagdeep S. Buttar , Neil Motiska
IPC分类号： G11B5/455 , G01R31/06 , G11B21/02
CPC分类号： G01R31/06 , G01R31/024 , G01R31/2829
摘要： A system for testing a voice coil member of a rotary actuator head stack assembly (HSA) of a disk drive includes a plurality of testing circuits, each of which selectively performs at least one predefined test on the voice coil member. During testing, the head stack assembly is removably mounted on a base plate with the axis of rotation of the head stack assembly normal to the top surface of said base plate. A flat reference coil is disposed in a fixed position parallel to the top surface of the base plate to provide an inductively coupled relationship between the reference coil and the coil under test. The ends of the coil under test are connected to a pair of terminals in the base plate. A polarity test circuit for determining the polarity of the coil under test is connected to the terminals. Other test circuits are selectively connected to the terminals and the tests are conducted in a controlled sequence without the need to move the fragile head stack assembly.
摘要翻译：用于测试磁盘驱动器的旋转致动器头组组件（HSA）的音圈构件的系统包括多个测试电路，每个测试电路选择性地在音圈构件上执行至少一个预定义的测试。在测试期间，磁头组组件可拆卸地安装在基板上，磁头组件组件的旋转轴线垂直于所述基板的顶表面。扁平参考线圈设置在与基板的顶表面平行的固定位置，以提供参考线圈和被测线圈之间的电感耦合关系。被测线圈的端部连接到基板中的一对端子。用于确定被测线圈的极性的极性测试电路连接到端子。其他测试电路选择性地连接到端子，并且测试以受控的顺序进行，而不需要移动易碎的磁头组组件。

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