Long tube bender element squeeze bearing
    1.
    发明授权
    Long tube bender element squeeze bearing 失效
    长管弯管元件挤压轴承

    公开(公告)号:US4593956A

    公开(公告)日:1986-06-10

    申请号:US645741

    申请日:1984-08-13

    CPC分类号: F16C32/0611 F16C32/06

    摘要: Tubular, pneumatic, vibratory transducer bearings incorporate a pair of colinear nested tubes with differing radii joined together at their inner and outer radii respectively. The mode of oscillation of the structure is designed to produce minimal vibration of the load carried on points of low vibration on the surface of the inner tube. The inner tube is far longer than the outer tube which is piezoelectrically excited at the correct frequency to produce the mode of oscillation desired for low vibration, automatically or self-pressurized bearing arrangement. The tubes are cylindrical and the inner tube rides on a cylindrical rod. The mounting points are at saddle points on the surface of the inner tube. The shortness of the outer tube of the transducer reduces the weight of the transducer.

    摘要翻译: PCT No.PCT / US82 / 01828 Sec。 371日期1984年8月13日 102(e)日期1984年8月13日PCT提交1982年12月30日PCT公布。 公开号WO84 / 02755 日期1984年7月19日。管状气动振动传感器轴承分别具有一对在其内半径和外半径处连接在一起的不同半径的共线嵌套管。 该结构的振动模式设计用于在内管表面上产生低振动点载荷的极小振动。 内管比外管长得多,该外管以正确的频率被压电激励,以产生低振动,自动或自加压轴承装置所需的振荡模式。 管是圆柱形的,内管骑在圆柱形杆上。 安装点位于内管表面的鞍点上。 传感器外管的短路可以减小传感器的重量。

    Low mass actuator system for magnetic recording disks with half strength
end poles
    2.
    发明授权
    Low mass actuator system for magnetic recording disks with half strength end poles 失效
    具有半强度端极的磁记录盘的低质量致动器系统

    公开(公告)号:US4396966A

    公开(公告)日:1983-08-02

    申请号:US221866

    申请日:1980-12-31

    摘要: A linear motor adapted for driving a magnetic recording head reciprocably across the surface of a magnetic recording disk in a disk file has its stator located between the disks. The stator includes parallel magnetic yokes composed of plates extending parallel to the disks. At least one of the plates carries an array of regularly spaced and alternating magnetic pole elements, rigidly secured to one yoke with a gap extending between the yokes including the alternating poles providing a space within which the armature reciprocates, from one magnetic polarity to the opposite a plurality of times per reciprocation of the armature. End poles are provided at each end of the array, which are matched to collect the return flux from the adjacent distal pole to reduce fringing flux which emanates towards the disks and the recording heads.

    摘要翻译: 适于驱动磁记录头的线性电动机可往复地跨越磁盘文件中的磁记录盘的表面,其定子位于盘之间。 定子包括由平行于盘延伸的板构成的平行磁轭。 这些板中的至少一个载有规则间隔和交替的磁极元件的阵列,其刚性地固定到一个轭,在包括交替极的轭之间延伸的间隙提供了一个空间,衔铁在一个空间内从一个磁极到另一个磁极 电枢往复运动多次。 末端极设置在阵列的每个端部,其被匹配以收集来自相邻远端极的返回通量,以减少朝向盘和记录头发出的边缘通量。

    Planar and cylindrical oscillating pneumatodynamic bearings
    3.
    发明授权
    Planar and cylindrical oscillating pneumatodynamic bearings 失效
    平面和圆柱形振动气动轴承

    公开(公告)号:US4666315A

    公开(公告)日:1987-05-19

    申请号:US273280

    申请日:1981-06-12

    IPC分类号: F16C32/00 F16C32/06 G11B21/02

    摘要: An oscillating pneumatodynamic bearing takes the form of a laminated transducer disk cooperating with a flat surface or a tubular transducer cooperating with a rod or an enclosing tube. Such bearings are also known as squeeze bearings. At least one piezoelectric, magnetostrictive or electrostrictive material is laminated with another material to provide oscillation of the transducer portion of the bearing so that the transducer portion is able to fly above a bearing surface on a fluid which is usually ambient air compressed by the mechanical oscillation of the transducer portion at an ultrasonic frequency. The disk or the tube is connected mechanically to supports and to its electrical sources of energy or signals at points along the loci of zero oscillation or minimal oscillation. With a laminated disk, a nodal circle is the locus of zero oscillation. In the case of the tube, a number of parallel strips of reversed polarity transducer material are alternately connected together by an interdigitated electrode design of spacing grooves between an enveloping conductive layer which overlies the piezoelectric layer laminated to a metallic base. Bearings for armatures of linear motor types of actuators for reciprocating magnetic recording heads within magnetic recording disk files can employ a set of disk type bearings or a combination of a tubular bearing with at least one disk type bearing.

    摘要翻译: 振动式气动轴承采用与平面或与杆或封闭管配合的管状换能器配合的叠层换能器盘的形式。 这种轴承也称为挤压轴承。 至少一个压电,磁致伸缩或电致伸缩材料与另一种材料层压以提供轴承的换能器部分的振荡,使得换能器部分能够在通常由通过机械振荡压缩的环境空气的流体上的轴承表面上方飞行 的传感器部分。 磁盘或管道在零振荡或最小振荡的轨迹上的位置处机械地连接到支撑件及其电能源或信号。 使用层压盘,节点圆是零振荡的轨迹。 在管的情况下,多个平行的反极性传感器材料条通过间隔沟槽的交错电极设计交替地连接在一起,该间隔沟槽位于叠层在金属基底上的压电层之间的包络导电层之间。 用于磁记录盘文件中的往复磁记录头的线性电动机类型的致动器的电枢的轴承可以采用一组盘式轴承或者具有至少一个盘式轴承的管状轴承的组合。

    Data input pen for Signature Verification
    5.
    发明授权
    Data input pen for Signature Verification 失效
    用于签名验证的数据输入笔

    公开(公告)号:US4513437A

    公开(公告)日:1985-04-23

    申请号:US394043

    申请日:1982-06-30

    摘要: A writing implement having special applicability for use as a pressure and acceleration sensitive element for use in a Signature Verification System. The pen structure includes both a writing implement for making a visible record and also includes unique transducer structures for providing both acceleration and pressure data to a remotely located verification system. The pressure sensing element is axially mounted within the pen and produces pressure signals due to axial pressure on the pen tip as an individual writes. The accelerometer structure comprises a hollow tubular piezoelectric member supported at one end and having four circumferentially disposed electrodes on the outer surface thereof, which are appropriately interconnected to produce two orthogonal acceleration component signals A.sub.x and A.sub.y.

    摘要翻译: 一种具有特殊适用性的书写工具,用作用于签名验证系统的压力和加速度敏感元件。 笔结构包括用于制作可视记录的书写工具,还包括用于向远程位置的验证系统提供加速和压力数据的独特的换能器结构。 压力感测元件轴向安装在笔内,并且由于个人写入时由于笔尖上的轴向压力而产生压力信号。 加速度计结构包括一个中空管状压电元件,其一端被支撑并且在其外表面上具有四个周向设置的电极,它们被适当互连以产生两个正交加速度分量信号Ax和Ay。

    Structure to provide optical and capacitive contrast on magnetic
recording disk
    10.
    发明授权
    Structure to provide optical and capacitive contrast on magnetic recording disk 失效
    结构在磁记录盘上提供光学和电容对比度

    公开(公告)号:US4737877A

    公开(公告)日:1988-04-12

    申请号:US861655

    申请日:1986-05-05

    IPC分类号: G11B5/596 G11B5/82 G11B13/00

    CPC分类号: G11B5/82 G11B5/59677

    摘要: A magnetic recording disk is formed on a rigid aluminum substrate coated with a polymeric dielectric layer. A thin film metallic position-indicating track is applied to the upper surface of the dielectric layer. The dielectric material is coated with a magnetic recording medium. A thin film of aluminum forms the patterned capacitive and optically reflective track. The dielectric layer is composed of a very similar material to the matrix material in the magnetic recording medium.The disk can be flexible or floppy and it is not necessary to have the extra dielectric layer in such a case, where the substrate is a dielectric.

    摘要翻译: 磁性记录盘形成在涂覆有聚合物介电层的刚性铝基板上。 薄膜金属位置指示轨迹被施加到电介质层的上表面。 电介质材料用磁记录介质涂覆。 铝的薄膜形成图案化的电容和光学反射轨迹。 电介质层由与磁记录介质中的基质材料非常相似的材料组成。 磁盘可以是柔性的或软盘的,并且在这种情况下不需要额外的电介质层,其中衬底是电介质。