利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

26 条记录 (耗时 0.013 秒)

    ULTRASONIC MOTOR DRIVE APPARATUS
    1.
    发明申请
    ULTRASONIC MOTOR DRIVE APPARATUS 有权
    超声波电机驱动装置

    公开(公告)号：US20100187950A1

    公开(公告)日：2010-07-29

    申请号：US12692146

    申请日：2010-01-22

    申请人： Yasuaki KASAI ,  Nagahide SAKAI

    发明人： Yasuaki KASAI ,  Nagahide SAKAI

    IPC分类号： H02N2/02

    CPC分类号： H02N2/103 ,  H01L41/0913 ,  H02N2/108

    摘要： An ultrasonic motor drive apparatus comprises a piezoelectric element 107 having a plurality of piezoelectrically active regions, in which longitudinal vibration and flexural vibration are induced with application of alternate signals to the plurality of piezoelectrically active regions, a piezoelectric element holder 108 that is fixedly attached to the piezoelectric element, covering the neighborhood of a common node of the longitudinal vibration and the flexural vibration induced in the piezoelectric element all along the circumference of the central portion of the piezoelectric element with respect to the longitudinal direction, a vibrator holder 103 having a plurality of openings, a driven member 104 having a substantially spherical shape, an output shaft 106 attached to the driven member, through which power output of the driven member is transmitted, a pressing member 102 that brings the driven member 104 and the piezoelectric member into pressure contact with each other along the third direction, a cap 105 having an opening 105a, a link member 101 one end of which is connected with the pressing member 102 along the third direction and the other end of which can be connected with another apparatus, and a control section 600 that applies an alternate signal to the piezoelectric member.

    摘要翻译： 超声波马达驱动装置包括具有多个压电有源区域的压电元件107，其中通过向多个压电有源区域施加交替信号而引起纵向振动和弯曲振动，压电元件保持器108固定地附接到 所述压电元件围绕所述纵向振动的共同节点的附近以及所述压电元件全部沿所述压电元件的中心部分的圆周相对于所述纵向方向感应的弯曲振动;振动器保持器103，其具有多个 具有大致球形的从动构件104，附接到从动构件的输出轴106，从动构件的动力输出通过该从动构件传递;将从动构件104和压电构件压力的按压构件102 沿着彼此接触 第三方向，具有开口105a的盖105，连接构件101，其一端沿着第三方向与按压构件102连接，另一端可与另一装置连接;以及控制部600，其 向压电元件施加交替信号。

    Driving method for ultrasonic motor and apparatus using the same
    2.
    发明授权
    Driving method for ultrasonic motor and apparatus using the same 有权
    超声波电机的驱动方法及其使用方法

    公开(公告)号：US07449814B2

    公开(公告)日：2008-11-11

    申请号：US11452814

    申请日：2006-06-14

    申请人： Yasuaki Kasai ,  Makoto Harada

    发明人： Yasuaki Kasai ,  Makoto Harada

    IPC分类号： H01L41/08

    CPC分类号： H02N2/026 ,  H02N2/004 ,  H02N2/0075

    摘要： A method for driving an ultrasonic motor includes the step of applying a driving alternating signal to an ultrasonic vibrator to simultaneously generate two different vibration modes in the ultrasonic vibrator to cause a substantially elliptical vibration at friction-contact members of the ultrasonic vibrator, thus relatively moving the ultrasonic vibrator and a driven body in contact with the ultrasonic vibrator. A preliminary vibration domain in which a preliminary vibration smaller than the substantially elliptical vibration is generated at the friction-contact members is provided prior to a main vibration domain in which the driving alternating signal is applied.

    摘要翻译： 一种用于驱动超声波马达的方法包括以下步骤：向超声波振动器施加驱动交变信号，以在超声波振动器中同时产生两种不同的振动模式，以在超声波振动器的摩擦接触部件处产生基本椭圆振动，从而相对移动 超声波振动器和与超声波振动器接触的被驱动体。 在施加驱动交变信号的主振动区域之前，提供在摩擦接触构件产生小于大致椭圆振动的初步振动的预振动区域。

    Device and method for driving ultrasonic actuator
    3.
    发明申请
    Device and method for driving ultrasonic actuator 审中-公开
    用于驱动超声波致动器的装置和方法

    公开(公告)号：US20050116583A1

    公开(公告)日：2005-06-02

    申请号：US10966966

    申请日：2004-10-15

    申请人： Masahiro Nishio ,  Yasuaki Kasai

    发明人： Masahiro Nishio ,  Yasuaki Kasai

    IPC分类号： H02N2/00 ,  H01L41/04 ,  H01L41/09

    CPC分类号： H02N2/008 ,  H01L41/0913 ,  H02N2/026

    摘要： A method is provided to drive an ultrasonic-actuator by supplying an alternating signal to an ultrasonic transducer in which piezoelectric plates and internal electrodes are alternately stacked. A frequency at which a phase difference between a voltage and current of the alternating signal is in a predetermined state is detected from a frequency range in which an amplitude ratio between the voltage and the current of the alternating signal is more than or equal to a predetermined value, and the driving frequency is set to the detected frequency.

    摘要翻译： 提供了一种通过向压电板和内部电极交替堆叠的超声波换能器提供交流信号来驱动超声致动器的方法。 从交变信号的电压和电流之间的振幅比大于或等于预定的频率范围检测出交变信号的电压和电流之间的相位差处于预定状态的频率， 值，驱动频率设定为检测频率。

    ULTRASONIC MOTOR
    5.
    发明申请
    ULTRASONIC MOTOR 有权
    超声波电机

    公开(公告)号：US20110163633A1

    公开(公告)日：2011-07-07

    申请号：US12973454

    申请日：2010-12-20

    申请人： Yasuaki KASAI

    发明人： Yasuaki KASAI

    IPC分类号： H02N2/12

    CPC分类号： H02N2/108 ,  H01L41/083 ,  H02N2/0065

    摘要： An ultrasonic motor for driving a driven object with a multi-degree of freedom includes a vibrator configured to simultaneously excite two vibration modes to generate an elliptic vibration on an output surface thereof, a driven object configured to be driven by the elliptic vibration generated on the output surface, and a driving element interposed between the output surface and the driven object. The driven object includes a spherical portion to be brought into contact with at least the output surface via the driving element. The elliptic vibration exhibits different vibration amplitudes at different positions on the output surface. The output surface includes a plurality of regions which exhibit greater vibration amplitudes than other regions on the output surface. The driving element includes a contact portion with at least two regions exhibiting greater vibration amplitudes than other regions of the contact portion, and is provided on the output surface.

    摘要翻译： 用于驱动多自由度的被驱动物体的超声波马达包括：振动器，其被配置为同时激励两个振动模式以在其输出表面上产生椭圆振动;被驱动物体，被配置为由在 输出表面和插入在输出表面和被驱动对象之间的驱动元件。 驱动对象包括经由驱动元件与至少输出表面接触的球形部分。 椭圆振动在输出表面的不同位置显示不同的振幅。 输出表面包括多个区域，其显示出比输出表面上的其它区域更大的振幅。 所述驱动元件包括具有至少两个区域的接触部分，所述至少两个区域具有比所述接触部分的其它区域更大的振幅，并且设置在所述输出表面上。

    Motorized table apparatus and microscope stage
    6.
    发明授权
    Motorized table apparatus and microscope stage 有权
    电动台装置和显微镜台

    公开(公告)号：US07791796B2

    公开(公告)日：2010-09-07

    申请号：US11820740

    申请日：2007-06-20

    申请人： Yoshihiro Ue ,  Yasuaki Kasai ,  Katsuji Horiuchi

    发明人： Yoshihiro Ue ,  Yasuaki Kasai ,  Katsuji Horiuchi

    IPC分类号： G02B21/26

    CPC分类号： G02B21/26 ,  H02N2/026 ,  H02N2/028

    摘要： A motorized table apparatus comprises: a support unit for supporting a movement table so as to allow it to move in a single axis direction relative to a stationary unit which is fixed to the movement table; a slide member which is equipped on the movement table and which has a length equivalent to, or more than, a moving range of the movement table; an ultrasonic oscillators which is equipped on the stationary unit, which moves the movement table, and which comprises a single piezoelectric body and two drive elements; and a pressure application unit for supporting so that the two drive elements of the ultrasonic oscillator and the slide member are pressed by a constant force, wherein a plurality of the ultrasonic oscillators are equipped.

    摘要翻译： 电动台装置包括：支撑单元，用于支撑移动台，以便允许其相对于固定到移动台的固定单元在单个轴线方向上移动; 滑动构件，其配置在所述移动台上，其长度等于或大于所述移动台的移动范围; 设置在固定单元上的超声波振荡器，其移动移动台，并且包括单个压电体和两个驱动元件; 以及压力施加单元，用于支撑使得超声波振荡器和滑动构件的两个驱动元件被恒定的力按压，其中配备有多个超声波振荡器。

    Ultrasonic motor
    7.
    发明授权
    Ultrasonic motor 有权
    超声波电机

    公开(公告)号：US07732983B2

    公开(公告)日：2010-06-08

    申请号：US12272159

    申请日：2008-11-17

    申请人： Yasuaki Kasai

    发明人： Yasuaki Kasai

    IPC分类号： H02N2/00

    CPC分类号： H02N2/004 ,  G02B7/08 ,  H02N2/0055 ,  H02N2/026

    摘要： A ultrasonic motor includes a piezoelectric device, and friction contact members moves a driven body by a elliptical vibration. And the ultrasonic motor includes a holder member which is disposed corresponding to a node of a longitudinal vibration or in the vicinity thereof on the face of the piezoelectric device and a node of a flexural vibration or in the vicinity thereof, the holder member having an engagement convex portion and being provided with a pair of sliding contact projection portions, a position limiting member which has accommodation holes each constituted of a sliding contact concave portion for accommodating the sliding contact projection portion such that it makes a sliding contact therewith freely and an engagement concave portion for accommodating the engagement convex portion, and a pressure member which presses the holder member so as to bring the friction contact members into pressure contact with the driven body.

    摘要翻译： 超声波马达包括压电装置，摩擦接触构件通过椭圆振动使被驱动体移动。 并且超声波马达包括：与压电装置的表面上的纵向振动的节点或其附近相对应地设置的保持构件和弯曲节点或其附近，保持构件具有接合 凸部，并且设置有一对滑动接触突出部，位置限制构件，其具有容纳所述滑动接触突起部的滑动接触凹部，以使其与其自由滑动接触的接合凹部和接合凹部 用于容纳接合凸部的部分，以及压紧构件，其按压保持构件以使摩擦接触构件与被驱动体压力接触。