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1. 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。

2. 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。

3. 发明授权

US6006614A Apparatus and method for improving dynamic characteristics of a fine-positioning mechanism in a magnetic head/disk tester 失效
标题翻译：用于改善磁头/磁盘测试仪中的精细定位机构的动态特性的装置和方法
公开(公告)号：US6006614A
公开(公告)日：1999-12-28
申请号：US44301
申请日：1998-03-19
申请人： Nahum Guzik , Ufuk Karaaslan , Cem Kilicci
发明人： Nahum Guzik , Ufuk Karaaslan , Cem Kilicci
IPC分类号： G11B5/012 , G11B5/455 , G11B21/02 , G11B21/10 , G01N17/00
CPC分类号： G11B5/012 , G11B5/455
摘要： An improved fine positioning mechanism in a magnetic head/disk tester includes a primary position actuator and a primary body that supports a read/write head to be tested, and an auxiliary body and auxiliary actuator. Both actuators operate contemporaneously and in mutually opposite directions. The masses of both bodies and the stiffnesses of both actuators are selected so that a ratio of the stiffness of the actuator to the mass of the body in the primary system is equal to a ratio of the stiffness of the actuator to the mass in the auxiliary system. In addition, the masses of both bodies and the expansion coefficients of both actuators are selected so that a product of the mass of the body with the expansion coefficient of the actuator in the primary system is equal to a product of the mass of the body with the expansion coefficient of the actuator in the auxiliary system. In this manner, forces operating on both bodies are equal in magnitude and opposite in direction and therefore counterbalance each other when the same control voltage is applied to both actuators. This, in turn, eliminates or reduces vibrations in the slide supporting the actuators and therefore the head-positioning settling time is significantly reduced.
摘要翻译：磁头/磁盘测试仪中的改进的精细定位机构包括主位置致动器和支撑待测试的读/写头的主体以及辅助主体和辅助致动器。两个执行器同时和相互相反的方向运行。两个致动器的质量和刚度被选择为使得致动器的刚度与主系统中的主体质量的比值等于致动器的刚度与辅助件中的质量的比率系统。另外，两主体的质量和两个致动器的膨胀系数被选择，使得主体的主体的膨胀系数与主体系中的致动器的膨胀系数的乘积等于体的质量与辅助系统中执行器的膨胀系数。以这种方式，在两个主体上操作的力在幅度上是相等的，并且在相同的控制电压被施加到两个致动器上时彼此相互平衡。这又反过来消除或减少支撑致动器的滑块中的振动，因此头部定位稳定时间显着减小。

4. 发明授权

US5632734A Catheter shape control by collapsible inner tubular member 失效
标题翻译：通过可折叠的内管状构件进行导管形状控制
公开(公告)号：US5632734A
公开(公告)日：1997-05-27
申请号：US541453
申请日：1995-10-10
申请人： Zev Galel , Cem Kilicci , Henry Bourang
发明人： Zev Galel , Cem Kilicci , Henry Bourang
IPC分类号： A61M25/00 , A61M25/01 , A61M25/06
CPC分类号： A61M25/0662 , A61M25/0041 , A61M2025/0161 , A61M25/0021 , A61M25/0105 , Y10S138/08
摘要： A composite catheter is formed by the combination of a catheter body and a tubular member insertable or secured inside the catheter body. The tubular member contains a series of relatively rigid segments alternating with flexible, collapsible segments which permit the rigid segments to effectively stack against one another when the tubular member is compressed axially. The shape that results when the rigid segments are forced together differs from that of the shape memory of the catheter body in certain embodiments of the invention, and changing the tubular member from a relaxed condition to the compressed condition inside the catheter body can therefore cause a change in shape of the catheter body.
摘要翻译：复合导管通过导管主体和可插入或固定在导管主体内的管状构件的组合形成。管状部件包含一系列相对刚性的部分，与柔性可折叠部分交替，这些部分允许当管状部件被轴向压缩时，刚性部分能够有效地彼此堆叠。在本发明的某些实施例中，刚性段被强制在一起的结果与导管体的形状记忆的形状不同，并且将管状构件从松弛状态改变为导管主体内部的压缩状态可能导致导管体形状的变化。

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