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1. 发明授权

US06384514B1 Reversible piezoelectric positioning device and a disk drive using same 失效
标题翻译：可逆式压电定位装置和使用其的磁盘驱动器
公开(公告)号：US06384514B1
公开(公告)日：2002-05-07
申请号：US09612580
申请日：2000-07-07
申请人： Imanuil A. Slutskiy , Alexandr I. Slutcky
发明人： Imanuil A. Slutskiy , Alexandr I. Slutcky
IPC分类号： H01L4108
CPC分类号： H01L41/0913 , G11B5/5552 , G11B7/08582 , G11B7/0937 , G11B19/2009 , H02N2/026 , H02N2/126
摘要： A reversible positioning device contains a piezoelectric actuator of a linear contact type urged against a rotary or a linear type movable element. The actuator is equipped with two sets of electrodes. The control unit supplies electrical impulses to either one of these sets of electrodes to initiate periodic oscillations of the actuator causing elastic compressions of the movable element and subsequent movements in either one of the opposite directions. One particularly useful application is in the movable arm of the disk drive data storage system such as a CD-ROM or alike. Extreme accuracy of positioning of a readout head and a low inertia allow for fast response time approaching 2 msec. a novel control method is in supplying a higher voltage from a control unit for the longer forward motion of the positioning device followed by a shorter back movement due to lower voltage. That control method increases the positioning accuracy even further to as low as 0.2 microns.
摘要翻译：可逆定位装置包括被推压抵抗旋转或线性可移动元件的线性接触型的压电致动器。执行器配有两组电极。控制单元向这些电极组中的任何一个提供电脉冲以启动致动器的周期性振荡，引起可移动元件的弹性压缩以及在相反方向中的任一个中的随后移动。一个特别有用的应用是在诸如CD-ROM或类似的盘驱动器数据存储系统的可移动臂中。读出头定位的极高精度和低惯量允许快速响应时间接近2毫秒。一种新颖的控制方法是从控制单元提供更高的电压，用于定位装置的较长的前进运动，随后由于较低的电压而产生较短的后退运动。该控制方法将定位精度进一步提高到低至0.2微米。

2. 发明授权

US06242850B1 Piezoelectric motor and a disk drive using same 失效
标题翻译：压电电机和使用相同的磁盘驱动器
公开(公告)号：US06242850B1
公开(公告)日：2001-06-05
申请号：US09542062
申请日：2000-04-03
申请人： Imanuil A. Slutskiy , Alexandr I. Slutcky
发明人： Imanuil A. Slutskiy , Alexandr I. Slutcky
IPC分类号： H02N200
CPC分类号： H02N2/103 , H02N2/002 , H02N2/0065
摘要： A piezoelectric motor of a linear contact type contains one or more actuators placed about a rotor. Each actuator contains at least one piezoelectric vibrator with a working end urged against the rotor. Periodic oscillations of each vibrator cause compressions of the rotor not exceeding its natural elastic compression limit so after its compression the rotor fully restores its initial cylindrical shape. Such elastic compressions ensure longer operational life of the motor. In another embodiment, each actuator has a laminated design with at least two vibrators separated by an isolator. The isolator extends beyond the vibrators and has appropriate hardness to engage with the rotor. A rotor of laminated design is also described to achieve the optimum hardness relative to the hardness of the actuators. The hardness of the vibrator is about 5×107 N/cm2 and much higher than the hardness of the rotor being about 2×106 N/cm2. A disk drive is described as one of the most advantageous applications of the motor of the invention to drive optical and magnetic disks such as in a CD-ROM drive etc.
摘要翻译：线性接触型的压电马达包含围绕转子放置的一个或多个致动器。每个致动器包含至少一个压电振动器，其具有被推靠在转子上的工作端。每个振动器的周期性振荡导致转子的压缩不超过其天然弹性压缩极限，因此在其压缩之后转子完全恢复其初始的圆柱形状。这种弹性压缩确保电机的更长的使用寿命。在另一个实施例中，每个致动器具有层压设计，其中至少两个振动器由隔离器隔开。隔离器延伸超过振动器并具有适当的硬度与转子啮合。还描述了层压设计的转子以实现相对于致动器的硬度的最佳硬度。振动器的硬度约为5×10 7 N / cm 2，远高于转子硬度约2×10 6 N / cm 2。磁盘驱动器被描述为本发明的电动机驱动诸如CD-ROM驱动器等光盘和磁盘的最有利的应用之一。

3. 发明授权

US6068256A Piezoelectric conveying device 失效
标题翻译：压电输送装置
公开(公告)号：US6068256A
公开(公告)日：2000-05-30
申请号：US362139
申请日：1999-07-28
申请人： Imanuil A. Slutskiy , Alexandr I. Slutcky
发明人： Imanuil A. Slutskiy , Alexandr I. Slutcky
IPC分类号： B65H5/00 , B65H5/06 , G11B19/20 , H01L41/09 , H02N2/10
CPC分类号： B65H5/06 , B65H5/008 , B65H2403/921 , B65H2555/14
摘要： A piezoelectric sheet conveying device of a linear contact type contains a pair of rollers containing the sheet therebetween. The first roller is driven by a piezoelectric vibrator forming a contact line between the edge insert of the vibrator and the outer surface of the first roller. The vibrator is urged against the first roller by a bias spring. The hardness of the edge insert of the vibrator is about 5.times.10.sup.7 N/cm.sup.2 and much higher than the hardness of the first roller being about 2.times.10.sup.6 N/cm.sup.2. As a result, elastic compressions of the first roller are achieved during periodic elongations of the vibrator and engagements of the first roller surface. Microgroove is formed along the contact line between the vibrator and the first roller which transmits the rotational torque to the first roller and advances the sheet in a predetermined direction. Subsequent contraction of the vibrator restores the outer surface of the first roller to its initial shape. Both the first roller and the vibrator can be made as laminated structures to achieve respectively correct composite hardness and reduce the driving voltage.
摘要翻译：线性接触型的压电片材输送装置包含一对辊，其中包含有片材。第一辊由在振动器的边缘插入件和第一辊的外表面之间形成接触线的压电振动器驱动。振动器通过偏置弹簧推靠第一辊。振动器的边缘插入件的硬度约为5×10 7 N / cm 2，远高于第一辊的硬度约为2×10 6 N / cm 2。结果，在振动器和第一辊表面的接合的周期性伸长期间实现了第一辊的弹性压缩。微波沿着振动器和第一辊之间的接触线形成，其将旋转扭矩传递到第一辊并且使预定方向前进。随后的振动器的收缩将第一辊的外表面恢复到其初始形状。第一辊和振动器都可以制成层压结构，以实现分别正确的复合硬度和降低驱动电压。

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