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公开(公告)号：US6071007A
公开(公告)日：2000-06-06
申请号：US978102
申请日：1997-11-25
CPC分类号： G11B27/36 , G01B21/30 , G11B2220/20 , G11B33/10
摘要： An apparatus for detecting surface variations on a rotating disc includes a slider, suspension assembly, first surface variation sensor, second surface variation sensor, and a controller. The slider is adapted to fly over the disc. The suspension assembly is coupled to the slider to position the slider over the disc. The first surface variation sensor is disposed on the slider, and provides a first sensor signal based upon slider contact with one of the surface variations. The second surface variation sensor is disposed on the slider and spaced from the first surface variation sensor. The second surface variation sensor provides a second sensor signal based upon slider contact with the surface variation. The controller receives the first and second signals and calculates a position of the surface variation based upon the first and second sensor signals.
摘要翻译： 用于检测旋转盘上的表面变化的装置包括滑块，悬架组件，第一表面变化传感器，第二表面变化传感器和控制器。 滑块适于在盘上飞行。 悬架组件联接到滑块以将滑块定位在盘上。 第一表面变化传感器设置在滑块上，并且基于滑块与表面变化之一的接触来提供第一传感器信号。 第二表面变化传感器设置在滑块上并与第一表面变化传感器间隔开。 第二表面变化传感器基于与表面变化的滑块接触提供第二传感器信号。 控制器接收第一和第二信号，并且基于第一和第二传感器信号来计算表面变化的位置。
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公开(公告)号：US5936801A
公开(公告)日：1999-08-10
申请号：US928008
申请日：1997-09-11
CPC分类号： G11B5/6005 , G11B5/10 , G11B5/105 , G11B5/3106 , G11B5/3903 , G11B5/40 , G11B5/58
摘要： A head slider for use in a disc drive data storage system includes a slider body substrate having a cavity formed therein. A transducer is positioned in the head slider such that walls of the cavity in the slider body substrate protect the transducer from contact with asperities on a surface of a data storage disc.
摘要翻译： 用于盘驱动器数据存储系统的磁头滑动器包括其中形成有空腔的滑块体基板。 换能器定位在磁头滑块中，使得滑块体基板中的空腔的壁保护换能器不与数据存储盘的表面上的凹凸接触。
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3.发明授权Integrated piezoelectric and thermal asperity transducers for testing disc media in high performance disc drives 失效用于测试高性能光盘驱动器中的光盘介质的集成压电和热凹凸传感器
公开(公告)号：US5872311A
公开(公告)日：1999-02-16
申请号：US839992
申请日：1997-04-24
IPC分类号： G01B7/34 , G11B5/012 , G11B5/10 , G11B5/48 , G11B5/55 , G11B5/58 , G11B5/60 , G11B19/04 , G11B27/34 , G11B33/10 , G01B21/30
CPC分类号： G01B7/345 , G11B19/04 , G11B5/10 , G11B5/58 , G11B27/34 , G11B33/10 , G11B5/012 , G11B5/4886 , G11B5/5534 , G11B5/6011
摘要： A device for testing smoothness of a rotatable disc is disclosed. A slider body has a trailing edge surface and an air-bearing surface for gliding over a surface of the disc when the disc is rotating. A piezoelectric sensor is formed in the slider body, and a thermal asperity sensor is formed in the slider body and at least partially exposed to the air-bearing surface. A plurality of conductive vias extend from the trailing edge surface of the slider body into the slider body to contact the piezoelectric and thermal asperity sensors. A plurality of conductive bond pads are disposed on the trailing edge surface in contact with respective conductive vias.
摘要翻译： 公开了一种用于测试可旋转盘的平滑度的装置。 滑块体具有后缘表面和用于在盘旋转时在盘的表面上滑动的空气轴承表面。 压电传感器形成在滑块体中，并且热敏凹凸传感器形成在滑块体中并且至少部分地暴露于空气轴承表面。 多个导电通孔从滑块体的后缘表面延伸到滑块体中以接触压电和热凹凸传感器。 多个导电接合焊盘设置在与相应的导电通孔接触的后缘表面上。
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公开(公告)号：US5825181A
公开(公告)日：1998-10-20
申请号：US831070
申请日：1997-04-01
CPC分类号： G11B33/10 , G01B21/085 , G11B27/36 , G11B5/012 , G11B5/3954 , G11B5/4886
摘要： An asperity height sensing head and method of using the same are disclosed. The head includes multiple magnetoresistive (MR) sensors carried by a first rail of a slider adjacent to the air bearing surface (ABS) and positioned a distance L.sub.p from each other. Asperity height estimating circuitry coupled to each of the multiple MR sensors detects a number N of the MR sensors which exhibit a change in resistance as a result of contact between the ABS and a first asperity on the surface of the disc. The asperity height estimating circuitry estimates the height H.sub.A of the first asperity as a function of the number N, as a function of the pitch angle .theta..sub.p , and as a function of the distance L.sub.p.
摘要翻译： 公开了一种凹凸高度感测头及其使用方法。 头部包括由滑块的与空气支承表面（ABS）相邻的第一轨道承载的多个磁阻（MR）传感器，并且彼此间距离Lp。 耦合到多个MR传感器中的每一个的粗糙度高度估计电路检测出由于ABS与盘的表面上的第一粗糙度之间的接触而呈现出电阻变化的数目N的MR传感器。 粗糙度高度估计电路根据距离Lp估计第一粗糙度的高度HA作为数量N的函数，作为俯仰角θp的函数。
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5.发明授权Slider having air bearing surface which includes pads for disk storage system 有权滑块具有包括用于盘存储系统的垫的空气轴承表面公开(公告)号：US06212042B1
公开(公告)日：2001-04-03
申请号：US09029276
申请日：1998-12-09
申请人： Jing Gui , Bruno J. Marchon , Daniel P. Burbank , Joel W. Hoehn , Jeffery K. Berkowitz , Ramesh Sundaram , John L. Brand , Subrahmanyan Nagarajan , Dallas W. Meyer , Peter R. Segar , Andreas A. Polycarpou , Zine-Eddine Boutaghou , Dale E. Egbert , David G. Wobbe , Mary Cynthia Hipwell , Huan Tang
发明人： Jing Gui , Bruno J. Marchon , Daniel P. Burbank , Joel W. Hoehn , Jeffery K. Berkowitz , Ramesh Sundaram , John L. Brand , Subrahmanyan Nagarajan , Dallas W. Meyer , Peter R. Segar , Andreas A. Polycarpou , Zine-Eddine Boutaghou , Dale E. Egbert , David G. Wobbe , Mary Cynthia Hipwell , Huan Tang
IPC分类号： G11B560
CPC分类号： G11B5/6005 , G11B7/122 , G11B7/22 , G11B21/21
摘要： A disc storage system includes a rotating disc and a transducer. The transducer is carried on a slider which is supported by an armature. The armature is used to move the slider radially across the disc surface whereby information may be read from or written to the disc surface of the transducer. The slider includes an air bearing surface which faces the disc surface. As the disc rotates, the air bearing surface causes the slider to “fly” over the disc surface. Pads are provided on the air bearing surface to improve operational characteristics of the system.
摘要翻译： 盘存储系统包括旋转盘和换能器。 传感器承载在由电枢支撑的滑块上。 电枢用于将滑块径向地移动到盘表面上，从而可以从换能器的盘表面读取或写入信息。 滑块包括面向盘表面的空气支承表面。 当盘旋转时，空气轴承表面导致滑块“在飞盘”的表面上。 垫片设置在空气轴承表面上，以改善系统的操作特性。
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6.发明授权Capacitance probe for magnetic recording head transducer to disc surface spacing measurement 失效用于磁记录头传感器的电容探针到光盘表面间距测量
公开(公告)号：US6046596A
公开(公告)日：2000-04-04
申请号：US804090
申请日：1997-02-20
IPC分类号： G01B7/14 , G01R1/07 , G11B5/31 , G11B5/39 , G11B5/58 , G11B5/60 , G11B5/82 , G11B33/10 , G01R27/26 , G11B5/455
CPC分类号： G11B5/6005 , G01B7/14 , G01R1/07 , G11B5/58 , G11B5/82 , G11B33/10 , G11B5/314 , G11B5/3903 , G11B5/3945
摘要： An apparatus for measuring magnetic recording head transducer to disc surface spacing and a method of fabricating the same are disclosed. A slider body of a read/write head has first and second rails forming portions of an air bearing surface of the slider body. First and second cavities are formed in the first and second rails of the slider body at the air bearing surface. First and second capacitance plates are positioned within the first and second cavities, respectively, such that a surface of each of the first and second capacitance plates is substantially coplanar with at least portions of the air bearing surface.
摘要翻译： 公开了一种用于测量磁记录头传感器到盘表面间距的装置及其制造方法。 读/写头的滑块体具有形成滑块体的空气轴承表面的部分的第一和第二轨道。 第一和第二空腔在空气轴承表面处形成在滑块体的第一和第二轨道中。 第一和第二电容板分别位于第一和第二空腔内，使得第一和第二电容板中的每一个的表面与空气轴承表面的至少一部分基本共面。
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公开(公告)号：US6023963A
公开(公告)日：2000-02-15
申请号：US966313
申请日：1997-11-07
CPC分类号： G01N29/045 , A01D67/005 , G11B33/10 , G11B5/84 , G01N2291/0237 , G01N2291/0427 , G01N2291/2632
摘要： The present invention is a glide height test slider for detecting asperities and irregularities on a surface of a rotating disc. A slider body has a plurality of edges defining its outer boundaries. The slider body has a piezoelectric element on at least one of its surfaces, and the piezoelectric element does not extend outside the outer boundaries of the slider body. First and second confronting conductors are patterned on the piezoelectric element so that an electric field generated by the piezoelectric element in response to a strained force due to vibration of the slider body induces a voltage between the first and second conductors representative of the vibration. The piezoelectric elements may be a separate element bonded to the slider body, or the slider body may be formed of a piezoelectric material to form the piezoelectric element.
摘要翻译： 本发明是用于检测旋转盘的表面上的粗糙度和凹凸的滑行高度测试滑块。 滑块体具有限定其外部边界的多个边缘。 滑块体在其至少一个表面上具有压电元件，并且压电元件不延伸到滑块体的外边界的外侧。 第一和第二面对导体在压电元件上被图案化，使得由压电元件响应于由于滑块体的振动引起的应变力产生的电场在代表振动的第一和第二导体之间引起电压。 压电元件可以是结合到滑块体的单独元件，或者滑块体可以由压电材料形成以形成压电元件。
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8.发明授权Glide test slider having electrically isolated piezoelectric crystal for improved noise suppression 失效滑动测试滑块具有电隔离的压电晶体，用于改善噪声抑制
公开(公告)号：US6016692A
公开(公告)日：2000-01-25
申请号：US967681
申请日：1997-11-10
CPC分类号： G11B5/84 , G01B7/34 , G11B23/0057 , G11B33/10 , G11B5/82
摘要： A high resolution, low noise glide height test slider is provided to detect irregularities on a surface of a rotatable disc. A slider body is arranged to be supported by a support structure in predetermined spaced relation to the surface of the disc as it is rotating. A piezoelectric element on the slider body senses vibration forces acting on the slider body. The slider is electrically isolated from external noise sources.
摘要翻译： 提供高分辨率，低噪音的滑行高度测试滑块以检测可旋转盘的表面上的凹凸。 滑块主体被布置成由支撑结构以与盘的表面旋转的预定间隔的关系支撑。 滑块体上的压电元件感测作用在滑块体上的振动力。 滑块与外部噪声源电隔离。
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9.发明授权Internal accelerometer for improved servo performance and shock sensing on high performance disc drive heads 失效内部加速度计，用于改善高性能磁盘驱动器的伺服性能和冲击感应
公开(公告)号：US5856895A
公开(公告)日：1999-01-05
申请号：US887499
申请日：1997-07-02
CPC分类号： G11B21/21 , G11B5/10 , G11B5/4806 , G11B5/5582 , G11B5/6005 , G11B33/10 , G11B5/5547 , G11B5/5565 , G11B5/596 , Y10T29/42 , Y10T29/49041 , Y10T29/49812
摘要： A data storage system head slider and a method of making the same are disclosed. The head slider includes a slider body and an accelerometer formed integrally with the slider body. In preferred embodiments, the accelerometer includes a cavity formed in the slider body. A structural beam extends over the cavity such that the structural beam deflects in response to acceleration of the head slider. A piezo transducer formed on the structural beam provides a transducer output signal indicative of a magnitude of the acceleration of the head slider.
摘要翻译： 公开了一种数据存储系统磁头滑动器及其制造方法。 磁头滑块包括与滑块体一体形成的滑块体和加速度计。 在优选实施例中，加速度计包括形成在滑块体中的空腔。 结构梁在空腔上方延伸，使得结构梁响应于磁头滑块的加速度而偏转。 形成在结构梁上的压电换能器提供指示磁头滑动器的加速度大小的换能器输出信号。
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公开(公告)号：US06700727B1
公开(公告)日：2004-03-02
申请号：US09809714
申请日：2001-03-15
IPC分类号： G11B2102
CPC分类号： G11B5/6005 , G11B5/58
摘要： A slider is provided for actively controlling a fly height of the slider relative to a data storage disc during operation of a data storage system. The slider includes a slider body having front and back surfaces, a length and a crown curvature on the front surface along the length. The slider also includes first and second elongated rails which are positioned on the front surface along the length of the slider body and form first and second bearing surfaces. Each bearing surface includes a leading portion, a trailing portion and a waist portion, wherein the waist portion is wider than the leading and trailing portions and has a maximum width within a middle half of the length of the slider body. A deformable material is positioned on the slider body having a dimension that is changeable in response to an electrical control signal applied in a deformable material, wherein a change in the dimension causes a change in the crown curvature.
摘要翻译： 提供滑块，用于在数据存储系统的操作期间主动地控制滑块相对于数据存储盘的飞行高度。 滑块包括具有前表面和后表面的滑块主体，沿着该长度的前表面上的长度和冠曲率。 滑块还包括第一和第二细长导轨，其沿着滑块主体的长度定位在前表面上并形成第一和第二支承表面。 每个支承表面包括前导部分，后部部分和腰部部分，其中腰部部分比前部和后部部分宽，并且在滑块体的长度的中间半部内具有最大宽度。 可变形材料定位在滑块主体上，其尺寸可以响应于施加在可变形材料中的电控制信号而变化，其中尺寸的变化导致表冠曲率的变化。
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