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    • 61. 发明授权
    • Control apparatus of vibration-type actuator and control method of vibration-type actuator
    • 振动型执行器的控制装置和振动型执行器的控制方法
    • EP2393136B1
    • 2017-07-12
    • EP11166666.5
    • 2011-05-19
    • Canon Kabushiki Kaisha
    • Kudo, Shinya
    • H02N2/06H02N2/14H02N2/00H02N2/02H02N2/10
    • H02N2/06H02N2/0015H02N2/008H02N2/026H02N2/062H02N2/103H02N2/142
    • Provided is a control apparatus of a vibration-type actuator for generating an elliptical motion of contact portions by a common alternating current including a frequency determining unit for setting a frequency of the alternating current. The frequency determining unit sets the frequency of the alternating current for changing an ellipticity of the elliptical motion, within a frequency range such that ellipticity changing frequency ranges set for the vibrators are overlapped, and the ellipticity changing frequency ranges are set for the vibrators as frequency ranges between an upper limit and a lower limit, such that the lower limit is a maximum resonant frequency at a time of changing the ellipticity, and the upper limit is larger than the lower limit and is a maximum frequency for the relative movement of the driving member.
    • 提供一种振动型致动器的控制装置,用于通过包括用于设定交流电频率的频率确定单元的公共交流电产生接触部分的椭圆运动。 频率确定单元在为振动器设置的椭圆率改变频率范围重叠的频率范围内设置用于改变椭圆运动的椭圆率的交流电的频率,并且将振动器的椭圆率改变频率范围设置为频率 范围在上限和下限之间,使得下限是在改变椭圆率时的最大谐振频率,并且上限大于下限并且是用于驾驶的相对运动的最大频率 会员。
    • 64. 发明公开
    • Actionneur de précision aller-retour
    • PräzisionsstellgliedfürVor- undRückwärtsbewegung
    • EP2887532A1
    • 2015-06-24
    • EP14197867.6
    • 2014-12-15
    • ThalesCedrat Technologies
    • Devilliers, ChristopheAguilar, FélixDucarne, JulienBarillot, FrançoisClaeyssen, Frank
    • H02N2/02H02N2/06
    • H01L41/0986H01L41/12H02N2/02H02N2/06
    • L'invention concerne un actionneur de précision nanométrique. Selon l'invention, l'actionneur (10, 100) comprend une base (11), une structure intermédiaire (12), une interface de sortie (13). Il comprend deux éléments (14, 15, 41, 42, 43) linéaires produisant une extension contrôlable selon une même direction longitudinale (50), chacun entre une première et une seconde extrémité. Un premier (14) des deux éléments posséde une première extrémité fixée sur la structure intermédiaire (12) et une seconde extrémité fixée sur la base (11), un second (15) des deux éléments posséde une première extrémité fixée sur la structure intermédiaire (12) et une seconde extrémité fixée à l'interface de sortie (13). La base (11) et la structure intermédiaire (12) sont positionnées de façon à ce que l'extension contrôlable du second élément (15) produise un déplacement de l'actionneur (10, 100) dans un premier sens (51) et l'extension contrôlable du premier élément (14) produise un déplacement de l'actionneur (10, 100) dans un second sens (52) opposé au premier sens (51) par rapport à la base (11).
    • 纳米级精密致动器包括基座,中间结构,输出接口以及在相同纵向方向上产生可控延伸的两个线性元件,每个在第一和第二端之间。 两个元件中的第一个具有固定到中间结构上的第一端和固定到基座上的第二端,两个元件中的第二端具有固定在中间结构上的第一端和固定到输出界面的第二端。 基座和中间结构被定位成使得第二元件的可控延伸部在第一方向上产生致动器的位移,并且第一元件的可控延伸部在第二方向上产生致动器的位移,相反 到第一个方向,相对于基地。
    • 65. 发明公开
    • VERFAHREN UND VORRICHTUNG ZUR ELEKTRISCHEN ERREGUNG EINES AKTORS FÜR EINEN ULTRASCHALLMOTOR
    • 方法和设备,用于超声马达致动器电刺激
    • EP2622726A2
    • 2013-08-07
    • EP11813663.9
    • 2011-09-28
    • Physik Instrumente (PI) GmbH & Co. KG
    • WISCHNEWSKIY, WladimirWISCHNEWSKIJ, Alexej
    • H02N2/00
    • H02N2/06H02N2/008
    • The invention relates to a method for electrically exciting a piezoelectric actuator of an ultrasonic motor having a mechanical resonance frequency F
      m , wherein the ultrasonic motor has at least one acoustic standing wave generator, which comprises an exciter electrode and a general electrode, wherein a capacitance C
      o is developed between the exciter electrode and the general electrode. According to the invention, the method comprises the following steps: applying a rectangular exciter voltage U
      g to the exciter electrode and the general electrode of the at least one acoustic standing wave generator, wherein the frequency of the rectangular exciter voltage U
      g differs from the mechanical resonance frequency F
      m of the actuator; providing a voltage u
      g with the aid of a feedback element, wherein the voltage u
      g is proportional to a current I
      g flowing through the standing wave generator, wherein said current is the sum of a piezoelectric current I
      p and a charging and discharging current I
      c of the capacitance C
      o ; separating a voltage u
      p from a voltage u
      c with the aid of a pulse filter, wherein the voltage u
      p is proportional to the piezoelectric current I
      p and the voltage u
      c is proportional to the charging and discharging current I
      c of the capacitance C
      o ; and changing the frequency of the rectangular exciter voltage in such a way that the phase shift between the piezoelectric current I
      p and the rectangular exciter voltage U
      g is substantially zero. The invention further relates to a device for electrically exciting a piezoelectric actuator of an ultrasonic motor.
    • 69. 发明公开
    • Multi-set fine walking actuator
    • 多套精致行走执行器
    • EP2053669A1
    • 2009-04-29
    • EP08171167.3
    • 2001-07-25
    • Piezomotor Uppsala AB
    • Johansson, StefanBexell, MatsLithell, Per Oskar
    • H01L41/09
    • H02N2/021H01L41/0913H02N2/06
    • The present invention discloses an electromechanical actuator arrangement (10) and a method for driving such arrangement, having a plurality of drive elements (14a-d) according to a walking mechanism in a motion relative a body (22). A driving portion of the drive elements (14a-d) are independent movable tangentially and normally to the body (22) surface. The drive elements (14a-d) are driven in the fours cycle steps; gripping, moving the body, releasing and returning to the original position. The drive elements (14a-d) are divided into more than two exclusive sets. The driving of the sets is phase shifted. At least one of the sets is in contact with the body (22) surface at each instant. The present invention is characterised in that the driving of the drive elements (14a-d) during the gripping sequence is performed in such a way that the drive elements (14a-d) have a velocity, which has a significant tangential component.
    • 本发明公开了一种机电致动器装置(10)和用于驱动这种装置的方法,其具有根据步行机构相对于本体(22)运动的多个驱动元件(14a-d)。 驱动元件(14a-d)的驱动部分独立地可相对于主体(22)表面切向且独立地移动。 驱动元件(14a-d)以四个循环步骤驱动; 抓住,移动身体,释放并回到原来的位置。 驱动元件(14a-d)被分成两个以上的专用组。 相机的驱动是相移的。 每组中至少有一组在每一时刻与主体(22)表面接触。 本发明的特征在于,在抓取程序期间驱动元件(14a-d)以这样的方式执行,即驱动元件(14a-d)具有速度,该速度具有显着的切向分量。