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20 条记录 (耗时 0.017 秒)

    A method for driving an ultrasonic motor
    1.
    发明公开
    A method for driving an ultrasonic motor 失效
    Antriebsverfahrenfüreinen Ultraschallmotor

    公开(公告)号：EP0831540A1

    公开(公告)日：1998-03-25

    申请号：EP97118035.1

    申请日：1995-07-19

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Nojima, Takashi ,  Nishikura, Takahiro ,  Sumihara, Masanori ,  Kawasaki, Osamu ,  Otsuchi, Tetsuro ,  Takeda, Katsu ,  Imada, Katsumi

    IPC分类号： H01L41/04

    CPC分类号： H02N2/166 ,  H02N2/142

    摘要： A method for controlling the driving of an ultrasonic motor (110), including the steps of (i) sweeping a driving frequency of the pair of AC driving voltage signals from a starting frequency higher than a frequency of the vibrator (3) of the ultrasonic motor (110) in a stationary state when the ultrasonic motor (110) is started driving ; (ii) supplying supply power to the ultrasonic motor (110), the supply power being initially a minimum supply power capable of realizing a predetermined maximum rotation speed of the ultrasonic motor (110) under a standard load ; and (iii) when the driving frequency exceeds a frequency which is capable of realizing a maximum rotational power of the ultrasonic motor (110) by a current supply power, shifting the driving frequency toward sufficiently higher than the resonance frequency of the vibrator (3) in a stationary state, and increasing the supply power supplied to the ultrasonic motor (110) in a stepwise manner.

    摘要翻译： 一种用于控制超声波马达（110）的驱动的方法，包括以下步骤：（i）从比超声波的振动器（3）的频率高的起始频率扫掠一对AC驱动电压信号的驱动频率 电动机（110）在超声波马达（110）开始驱动时处于静止状态; （ii）向所述超声波马达（110）供应电源，所述供电功率最初是能够在标准负载下实现所述超声波马达（110）的预定最大转速的最小供电功率; 和（iii）当驱动频率超过能够通过电流供给功率实现超声波马达（110）的最大旋转功率的频率时，将驱动频率向充分高于振动器（3）的共振频率的方向移动， 在静止状态下，以逐步的方式增加提供给超声波马达（110）的供给功率。

    Piezoelectric head actuator
    6.
    发明公开
    Piezoelectric head actuator 失效
    PiezoelektrischeKopfbetätigungsvorrichtung。

    公开(公告)号：EP0591885A3

    公开(公告)日：1995-02-01

    申请号：EP93115966.9

    申请日：1993-10-04

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Nishikura, Takahiro ,  Imada, Katsumi ,  Nojima, Takashi ,  Takeda, Katsu ,  Sumihara, Masanori ,  Kawasaki, Osamu

    IPC分类号： G11B5/00 ,  G11B5/592 ,  H01L41/09

    CPC分类号： G11B5/592 ,  G11B5/4873 ,  G11B5/5552 ,  H01L41/094 ,  H01L41/0946

    摘要： A bimorph element (104) is formed by bonding first and second piezoelectric bodies (101, 102) together with an elastic shim (103) interposed between. The bimorph element (104) is firmly held by a base frame (105) which has a recess and a groove at the bottom of the recess. The elastic shim 103 has an extending portion (103a) which is firmly inserted in the groove and its end portion is inserted in the recess of the base frame (105). A space between the recess and the end portion of the bimorph element is filled by an elastic support member (108).

    摘要翻译： 通过将第一和第二压电体（101,102）与夹在其间的弹性垫片（103）结合在一起而形成双压电晶片元件（104）。 双压电晶片元件（104）由基座框架（105）牢固地保持，基座框架（105）在凹部的底部具有凹部和凹槽。 弹性垫片103具有牢固地插入槽中的延伸部分（103a），并且其端部插入到基架（105）的凹部中。 凹部和双压电晶片元件的端部之间的空间由弹性支撑构件（108）填充。

    A method and an apparatus for controlling a moving velocity of an ultrasonic motor
    7.
    发明公开
    A method and an apparatus for controlling a moving velocity of an ultrasonic motor 失效
    Verfahren und Vorrichtung zur Steuerung einer Drehgeschwindigkeit eines Ultraschallmotors。

    公开(公告)号：EP0602635A1

    公开(公告)日：1994-06-22

    申请号：EP93120292.3

    申请日：1993-12-16

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Kawasaki, Osamu ,  Sumihara,Masanori ,  Ohtsuchi, Tetsuro ,  Nishikura, Takahiro ,  Nojima, Takashi ,  Takeda, Katsu ,  Imada, Katsumi

    IPC分类号： H01L41/04

    CPC分类号： H02N2/14

    摘要： A method for controlling a moving velocity of an ultrasonic motor comprising a vibration body for causing ultrasonic vibration in response to two AC driving voltage signals having a common frequency, a common amplitude and phases different from each other; and a moving body in contact with the vibration body and moved by the ultrasonic vibration. The method includes step A of detecting a velocity of the moving body; step B comparing the velocity detected in step A with a predetermined velocity; and step C for adjusting the frequency of the two AC driving voltage signals and the amplitude of or the phase difference between the two AC driving voltage signals, based on the comparison result to allow the velocity of the moving body to be closer to the predetermined velocity.

    摘要翻译： 一种用于控制超声波电动机的移动速度的方法，包括：振动体，用于响应于具有共同的频率，共同的幅度和相位彼此不同的两个AC驱动电压信号而引起超声波振动; 以及与振动体接触并通过超声波振动移动的移动体。 该方法包括检测移动体的速度的步骤A; 步骤B将步骤A中检测到的速度与预定速度进行比较; 以及步骤C，用于基于比较结果来调整两个AC驱动电压信号的频率和两个AC驱动电压信号之间的幅度或相位差，以允许移动体的速度更接近于预定速度 。