专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07532006B2 Stand-alone quasi-static tester 有权
标题翻译：独立准静态测试仪
公开(公告)号：US07532006B2
公开(公告)日：2009-05-12
申请号：US11881815
申请日：2007-07-27
申请人： Nahum Guzik , Adrian Hodgkinson , Forest Ray
发明人： Nahum Guzik , Adrian Hodgkinson , Forest Ray
IPC分类号： G01R33/12
CPC分类号： G11B5/455
摘要： A quasi-static tester is disclosed. The quasi static tester comprises: a mount configured to fix a head gimbal assembly in a given position; a camera configured to observe the head gimbal assembly when the head gimbal assembly is fixed in the mount, wherein the camera is used to position the head gimbal assembly in an observation position; and a magnet for performing quasi-static testing of the head gimbal assembly when the head gimbal assembly is fixed in the mount, wherein the observation position and a testing position in a uniform area of the magnet are a predetermined distance apart.
摘要翻译：公开了一种准静态测试仪。准静态测试器包括：安装件，其被配置成将头部万向架组件固定在给定位置; 配置为当头部万向节组件固定在安装座中时观察头部万向节组件的相机，其中相机用于将头部万向架组件定位在观察位置; 以及用于当头部万向节组件固定在安装座中时对磁头万向架组件进行准静态测试的磁体，其中观察位置和磁体均匀区域中的测试位置间隔预定距离。

2. 发明授权

US07295002B2 Vacuum chuck spinstand for testing magnetic heads and disks 有权
公开(公告)号：US07295002B2
公开(公告)日：2007-11-13
申请号：US11333080
申请日：2006-01-17
申请人： Nahum Guzik , Forest E. Ray , Charles Brice Arnold
发明人： Nahum Guzik , Forest E. Ray , Charles Brice Arnold
IPC分类号： G01R33/12
CPC分类号： G11B5/012 , G11B5/455 , G11B5/4555 , G11B17/038 , G11B2005/001
摘要： A spinstand having a vacuum chuck clamping mechanism for securing magnetic discs includes a cap (9) and a base (10). A disk-to-be-clamped is held between the cap (9) and the base (10). Vacuum, applied through a port (4) in a mounting screw (12) of the base, provides the clamping force. The vacuum is held constant using a circumferential seal (27) on a piston (2) of the cap, which extends into a cylindrical countering bushing (3) extending from the base. In one form, the cap (9) is centered about a spin axis (SA) extending through the base (10), using a hardened pin (1) extending from the cap and a locating bushing (19) affixed to the base. When the cap (9) is inserted into the base (10), the pin (1) prevents a piston (2) in the cap from contacting the inside walls/sealing surface (11) of the centering bushing (3) of the base. To remove the cap, positive air pressure is applied to the air passage (4), collapsing the seal (27), and forcing the cap (9) out of the base (10) without causing wear on the seal (27) or the sealing surface (11) of the centering bushing (3).

3. 发明授权

US06236201B1 Magnetic head and disk tester with pitch correction 有权
标题翻译：带磁头校正的磁头和磁盘测试仪
公开(公告)号：US06236201B1
公开(公告)日：2001-05-22
申请号：US09241512
申请日：1999-02-01
申请人： Cem Kilicci , Nahum Guzik , Ufuk Karaaslan
发明人： Cem Kilicci , Nahum Guzik , Ufuk Karaaslan
IPC分类号： G01R3312
CPC分类号： G11B5/56 , G11B5/455 , G11B5/4806 , G11B5/5552
摘要： A magnetic head and disk tester provides accurate positioning of a magnetic read-write head over a magnetic disk by means of a coarse positioning mechanism and a fine positioning mechanism. The coarse positioning mechanism includes a stepper motor, a lead screw, a nut, rear sliders and a housing. The fine positioning mechanism includes a piezoelectric actuator, slides and a carriage. The positioning displacements are along a linear axis, which lies on a horizontal plane. The carriage is connected to the housing via the fine positioning mechanism, which then moves the carriage with respect to the housing. Two pairs of linear encoders are mounted on the carriage about the axis and measure the position of the magnetic read-write head with respect to the magnetic disk. Each pair is mounted such that the pairs lie in separate horizontal planes. One linear encoder on each pair is mounted to the right of the magnetic read-write head and the other to the left of it, the magnetic read-write head being equal distances from the two linear encoders of each pair. The magnetic read-write head is mounted on the carriage with an offset from each pair of linear encoders in the vertical direction. Pitch during the fine positioning movement causes the head to move a different amount than that measured by any one of the pairs of linear encoders. By using both pairs of encoders, the amount of pitch is determined. A feedback circuit responsive to that determination causes the fine positioned to move the head to the correct pitch.
摘要翻译：磁头和磁盘测试仪通过粗略定位机构和精细定位机构在磁盘上精确定位磁读写头。粗定位机构包括步进电机，导螺杆，螺母，后滑块和壳体。精细定位机构包括压电致动器，滑块和托架。定位位移沿线性轴线位于水平面上。滑架通过精细定位机构连接到壳体，然后精细定位机构使托架相对于壳体移动。两对线性编码器围绕轴安装在托架上，并测量磁读写头相对于磁盘的位置。每对安装成使得这些对位于分开的水平平面中。每对上的一个线性编码器安装在磁读写头的右侧，另一个安装在其左侧，磁读写头与每对两个线性编码器的距离相等。磁读写头安装在滑架上，在每一对线性编码器上沿垂直方向偏移。在精细定位运动期间的间距导致头部移动与由任何一对线性编码器测量的量不同的量。通过使用两对编码器，确定音高量。响应于该确定的反馈电路使精细定位将头移动到正确的音调。

4. 发明授权

US5491413A Positioning device for magnetic head and disk tester with rotating tool support 失效
标题翻译：带旋转刀具支架的磁头和磁盘测试仪的定位装置
公开(公告)号：US5491413A
公开(公告)日：1996-02-13
申请号：US127684
申请日：1993-09-27
申请人： Nahum Guzik
发明人： Nahum Guzik
IPC分类号： G11B5/00 , G11B5/455 , G11B5/55 , G01R33/12 , G11B5/54 , G11B21/14
CPC分类号： G11B5/5521 , G11B2005/001 , G11B5/455
摘要： A positioning device for magnetic head and disk tester comprises a base plate (100) which supports a rotary spindle (170), for rotating a magnetic disk (168) with a medium to be tested or to be used for testing, and a rotary platform (150) which may slide in one direction (A) along guide shafts (106 and 108) attached to the base plate (100). The rotary platform rotatingly supports a tool support (208) which supports a mechanical arm (218). The latter supports a pair of head holders (220 and 222) with respective read-write heads (228 and 222) to be tested or to be used for testing the disk. The positioning device of this type makes it possible to replace the heads in a convenient position unobstructed by other parts. This is achieved by unlocking the tool support (208) from the rotatable platform (150) by pushing down a lock finger (234) and turning the tool support with the head away from the working position.
摘要翻译：一种用于磁头和磁盘测试仪的定位装置，包括支撑旋转心轴（170）的基板（100），用于使待测试介质或用于测试的介质旋转磁盘（168），以及旋转平台（150），其可以沿着附接到所述基板（100）的引导轴（106和108）沿一个方向（A）滑动。旋转平台旋转地支撑支撑机械臂（218）的工具支撑（208）。后者支持一对具有相应读写头（228和222）的头部保持器（220和222），以被测试或用于测试盘。这种定位装置可以在不受其它部件阻碍的方便位置更换头部。这是通过向下推动锁定手指（234）并使头部工具支撑件远离工作位置而从可旋转平台（150）解锁工具支撑件（208）来实现的。

5. 发明授权

US07705609B2 Phase frequency distortion measurement system 有权
标题翻译：相位失真测量系统
公开(公告)号：US07705609B2
公开(公告)日：2010-04-27
申请号：US11944086
申请日：2007-11-21
申请人： Nahum Guzik , Vladislav Klimov , Semen Volfbeyn
发明人： Nahum Guzik , Vladislav Klimov , Semen Volfbeyn
IPC分类号： G01R23/20
CPC分类号： G01R35/00 , G01R23/16 , G01R23/20 , G01R31/2837
摘要： Disclosed is a method of measuring frequency distortions characteristics of a device under test, the device configured convert an input signal in an input frequency range to an output signal in a different output frequency range. The method includes, for each test frequency fi, where i=1, . . . , N and N a positive integer, in a selected frequency range, providing a corresponding test signal with multiple frequency components having a measurement component with a frequency fi, a first reference component with a frequency fA, and a second reference component with a frequency fB; inputting the test signals into the device under test; measuring output test signals at the output of the device under test corresponding to the input test signals; and determining, for each test frequency fi, information representative of frequency distortions based on the corresponding input test signal and the corresponding output test signal.
摘要翻译：公开了一种测量被测设备的频率失真特性的方法，该装置将输入频率范围内的输入信号转换为不同输出频率范围内的输出信号。该方法包括对于每个测试频率fi，其中i = 1。。。，N和N为正整数，在选定的频率范围内，提供具有多个频率分量的对应测试信号，所述多个频率分量具有具有频率fi的测量分量，具有频率fA的第一参考分量和具有频率fB的第二参考分量 ; 将测试信号输入被测设备; 根据输入的测试信号测量被测器件输出端的输出测试信号; 并且针对每个测试频率fi，基于相应的输入测试信号和相应的输出测试信号来确定表示频率失真的信息。

6. 发明申请

US20090128164A1 PHASE FREQUENCY DISTORTION MEASUREMENT SYSTEM 有权
标题翻译：相位失真测量系统
公开(公告)号：US20090128164A1
公开(公告)日：2009-05-21
申请号：US11944086
申请日：2007-11-21
申请人： Nahum Guzik , Vladislav Klimov , Semen Volfbeyn
发明人： Nahum Guzik , Vladislav Klimov , Semen Volfbeyn
IPC分类号： G01R23/20
CPC分类号： G01R35/00 , G01R23/16 , G01R23/20 , G01R31/2837
摘要： Disclosed is a method of measuring frequency distortions characteristics of a device under test, said device configured convert an input signal in an input frequency range to an output signal in a different output frequency range. The method includes, for each test frequency fi, where i=1, . . . ,N and N a positive integer, in a selected frequency range, providing a corresponding test signal with multiple frequency components comprising a measurement component with a frequency fi, a first reference component with a frequency fA, and a second reference component with a frequency fB; inputting said test signals into the device under test; measuring output test signals at the output of the device under test corresponding to the input test signals; and determining, for each test frequency fi, information representative of frequency distortions based on the corresponding input test signal and the corresponding output test signal.
摘要翻译：公开了一种测量被测设备的频率失真特性的方法，所述设备将输入频率范围内的输入信号转换为不同输出频率范围内的输出信号。该方法包括对于每个测试频率fi，其中i = 1。。。，N和N为正整数，在选定的频率范围内，提供具有多个频率分量的相应测试信号，所述多个频率分量包括具有频率fi的测量分量，具有频率fA的第一参考分量和具有频率fB的第二参考分量 ; 将所述测试信号输入被测设备; 根据输入的测试信号测量被测器件输出端的输出测试信号; 并且针对每个测试频率fi，基于相应的输入测试信号和相应的输出测试信号来确定表示频率失真的信息。

7. 发明申请

US20080247091A1 Stand-alone quasi-static tester 有权
标题翻译：独立准静态测试仪
公开(公告)号：US20080247091A1
公开(公告)日：2008-10-09
申请号：US11881815
申请日：2007-07-27
申请人： Nahum Guzik , Adrian Hodgkinson , Forest Ray
发明人： Nahum Guzik , Adrian Hodgkinson , Forest Ray
IPC分类号： G11B21/16 , G11B5/48
CPC分类号： G11B5/455
摘要： A quasi-static tester is disclosed. The quasi static tester comprises: a mount configured to fix a head gimbal assembly in a given position; a camera configured to observe the head gimbal assembly when the head gimbal assembly is fixed in the mount, wherein the camera is used to position the head gimbal assembly in an observation position; and a magnet for performing quasi-static testing of the head gimbal assembly when the head gimbal assembly is fixed in the mount, wherein the observation position and a testing position in a uniform area of the magnet are a predetermined distance apart.
摘要翻译：公开了一种准静态测试仪。准静态测试器包括：安装件，其被配置成将头部万向架组件固定在给定位置; 配置为当头部万向节组件固定在安装座中时观察头部万向节组件的相机，其中相机用于将头部万向架组件定位在观察位置; 以及用于当头部万向节组件固定在安装座中时对磁头万向架组件进行准静态测试的磁体，其中观察位置和磁体均匀区域中的测试位置间隔预定距离。

8. 发明申请

US20070017109A1 Headstack locator assembly for testing magnetic heads 有权
标题翻译：头枕定位器组件，用于测试磁头
公开(公告)号：US20070017109A1
公开(公告)日：2007-01-25
申请号：US11349508
申请日：2006-02-07
申请人： Nahum Guzik , Charles Arnold , Vladimir Chevlioukevitch
发明人： Nahum Guzik , Charles Arnold , Vladimir Chevlioukevitch
IPC分类号： G01D21/00
CPC分类号： G11B5/455 , G11B5/4555
摘要： A headstack locator assembly for locating and fixing a headstack on a spinstand and which mitigates the aforementioned prior art limitations. The headstack locator assembly includes a headstack locator received on a fixed locator. The headstack locator connects to a headstack, while the fixed locator is permanently secured to a spinstand. A vacuum is used to clamp the headstack locator to the fixed locator for testing of the headstack. Upon test completion, the headstack locator is released from the fixed locator by applying positive air pressure to the assembly.
摘要翻译：一种用于在头架上定位和固定头颅并且减轻上述现有技术限制的头枕定位器组件。头架定位器组件包括接收在固定定位器上的头枕定位器。头顶定位器连接到一个头堆，而固定定位器永久固定在一个独立摆放架上。使用真空将头枕定位器夹紧到固定定位器，以测试头颅。测试完成后，通过向组件施加正气压，将头架定位器从固定定位器释放。

9. 发明授权

US06242910B1 Magnetic head and disk tester with yaw correction 失效
标题翻译：具有偏航校正的磁头和磁盘测试仪
公开(公告)号：US06242910B1
公开(公告)日：2001-06-05
申请号：US09241510
申请日：1999-02-01
申请人： Nahum Guzik , Cem Kilicci , Ilia M. Bokchtein , Ufuk Karaaslan
发明人： Nahum Guzik , Cem Kilicci , Ilia M. Bokchtein , Ufuk Karaaslan
IPC分类号： G11B548
CPC分类号： G11B5/4806 , G11B5/455 , G11B5/5552 , G11B5/56
摘要： A magnetic head and disk tester includes a magnetic head which is selectively positioned relative to a rotatably mounted magnetic disk to accomplish testing of either of the head or disk or both. The magnetic head is secured to a carriage which is under electro-mechanical control, wherein displacement of the carriage causes a corresponding displacement of the head relative to the disk and, to some degree, may cause yaw in the carriage. Measurements of the linear position of a left and a right side of the carriage are detected, measured, and fed back to a control system. The control system responds to a difference between a desired command position and the actual position of each side of the carriage and causes actuators to adjust the position of each side of the carriage until the difference, and thereby the yaw, is substantially eliminated. Additionally, during a positioning operation, vibrations in the yaw direction are decreased, which decreases a corresponding settling time of the magnetic head.
摘要翻译：磁头和磁盘测试器包括磁头，其相对于可旋转地安装的磁盘选择性地定位，以完成磁头或磁盘或两者的测试。磁头被固定在机电控制下的滑架上，其中滑架的位移导致磁头相对于磁盘的相应位移，并且在一定程度上可能导致滑架中的偏航。检测，测量并反馈到控制系统的滑架的左侧和右侧的线性位置的测量。控制系统响应期望的指令位置和滑架的每一侧的实际位置之间的差异，并且使致动器调节滑架的每一侧的位置，直到基本上消除了差异，从而偏航。此外，在定位操作期间，偏航方向的振动减小，这降低了磁头的相应的建立时间。

10. 发明授权

US08077426B2 Magnetic disk centering method and system 有权
标题翻译：磁盘定心方法及系统
公开(公告)号：US08077426B2
公开(公告)日：2011-12-13
申请号：US12638545
申请日：2009-12-15
申请人： Nahum Guzik , Sergey Korepanov , Alexander Varlakhanov
发明人： Nahum Guzik , Sergey Korepanov , Alexander Varlakhanov
IPC分类号： G11B21/02 , G11B5/58
CPC分类号： G11B5/00
摘要： A system and method are described for aligning a data axis of one or more circular data-bearing tracks on an annular surface region of a magnetic media-bearing disk, with a spin axis of a spindle of a spinstand or a disk drive. The data axis is perpendicular to the surface region of the disk and the data tracks are concentric with respect to a data axis.
摘要翻译：描述了一种系统和方法，用于将磁性介质承载盘的环形表面区域上的一个或多个圆形数据承载轨道的数据轴与纺锤台或磁盘驱动器的主轴的旋转轴线对准。数据轴垂直于盘的表面区域，数据轨迹相对于数据轴是同心的。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式