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1. 发明申请

US20120091927A1 METHOD OF MEASURING AND EVALUATING MECHANICAL OUTPUTS OF PIEZOELECTRIC ACTUATORS, CONTROLLING METHOD OF THE SAME, AND APPARATUS USING THOSE METHODS 有权
标题翻译：测量和评估压电致动器的机械输出的方法，其控制方法以及使用这些方法的装置
公开(公告)号：US20120091927A1
公开(公告)日：2012-04-19
申请号：US13260180
申请日：2010-03-31
申请人： Takeshi Yano , Kazuo Yakuwa , Akio Yano , Sze Keat Chee , Toshiro Higuchi
发明人： Takeshi Yano , Kazuo Yakuwa , Akio Yano , Sze Keat Chee , Toshiro Higuchi
IPC分类号： H02N2/06 , G01L1/16
CPC分类号： H02N2/06 , G01L5/226 , H02N2/043
摘要： The present invention relates to a method of measuring and evaluating rigidity of a target object or mechanical output, such as force, displacement, and mechanical energy generated by a piezoelectric actuator and applied to the target object, according to only a measured value of electric quantity without use of a mechanical sensor, and a method of controlling the piezoelectric actuator, and a device using these methods.Steps of finding equivalent circuit constants of the piezoelectric actuator; applying a voltage to the piezoelectric actuator and measuring electrical quantity flowing into the piezoelectric actuator due to the applied voltage, or applying an electric charge to the piezoelectric actuator and measuring voltage applied to the piezoelectric actuator due to the applied electric charge; and measuring and evaluating one or more of force, displacement, or mechanical energy generated by the piezoelectric actuator and applied to a target object, or rigidity of a target object are included. While these values are measured and evaluated minutely, applied voltage and electrical quantity are adjusted and controlled.
摘要翻译：本发明涉及一种测量和评估目标物体或机械输出的刚度的方法，例如由压电致动器产生的力，位移和机械能，并且仅根据电量的测量值而不使用机械传感器，以及控制压电致动器的方法，以及使用这些方法的装置。找到压电致动器的等效电路常数的步骤; 对压电致动器施加电压并测量由于施加的电压而流入压电致动器的电量，或者向压电致动器施加电荷并测量由于所施加的电荷而施加到压电致动器的电压; 并且包括测量和评估由压电致动器产生并施加到目标物体的力，位移或机械能量或目标物体的刚度中的一个或多个。虽然这些值被精确地测量和评估，但是施加的电压和电量被调整和控制。

2. 发明授权

US08552620B2 Method of measuring and evaluating mechanical outputs of piezoelectric actuators, controlling method of the same, and apparatus using those methods 有权
标题翻译：压电致动器的机械输出的测量和评估方法，其控制方法以及使用这些方法的装置
公开(公告)号：US08552620B2
公开(公告)日：2013-10-08
申请号：US13260180
申请日：2010-03-31
申请人： Takeshi Yano , Kazuo Yakuwa , Akio Yano , Sze Keat Chee , Toshiro Higuchi
发明人： Takeshi Yano , Kazuo Yakuwa , Akio Yano , Sze Keat Chee , Toshiro Higuchi
IPC分类号： H01L41/107
CPC分类号： H02N2/06 , G01L5/226 , H02N2/043
摘要： The present invention relates to a method of measuring and evaluating rigidity of a target object or mechanical output, such as force, displacement, and mechanical energy generated by a piezoelectric actuator and applied to the target object, according to only a measured value of electric quantity without use of a mechanical sensor, and a method of controlling the piezoelectric actuator, and a device using these methods.Steps of finding equivalent circuit constants of the piezoelectric actuator; applying a voltage to the piezoelectric actuator and measuring electrical quantity flowing into the piezoelectric actuator due to the applied voltage, or applying an electric charge to the piezoelectric actuator and measuring voltage applied to the piezoelectric actuator due to the applied electric charge; and measuring and evaluating one or more of force, displacement, or mechanical energy generated by the piezoelectric actuator and applied to a target object, or rigidity of a target object are included. While these values are measured and evaluated minutely, applied voltage and electrical quantity are adjusted and controlled.
摘要翻译：本发明涉及一种测量和评估目标物体或机械输出的刚度的方法，例如由压电致动器产生的力，位移和机械能，并且仅根据电量的测量值而不使用机械传感器，以及控制压电致动器的方法，以及使用这些方法的装置。找到压电致动器的等效电路常数的步骤; 对压电致动器施加电压并测量由于施加的电压而流入压电致动器的电量，或者向压电致动器施加电荷并测量由于所施加的电荷而施加到压电致动器的电压; 并且包括测量和评估由压电致动器产生并施加到目标物体的力，位移或机械能量或目标物体的刚度中的一个或多个。虽然这些值被精确地测量和评估，但是施加的电压和电量被调整和控制。

3. 发明授权

US08662312B2 Piezoelectric valve and optical granular material-sorting apparatus utilizing such piezoelectric valve 有权
标题翻译：使用这种压电阀的压电阀和光学粒度分选装置
公开(公告)号：US08662312B2
公开(公告)日：2014-03-04
申请号：US13107332
申请日：2011-05-13
申请人： Takafumi Ito , Teruhiko Takeuchi , Takeshi Yano , Sze Keat Chee , Toshiro Higuchi
发明人： Takafumi Ito , Teruhiko Takeuchi , Takeshi Yano , Sze Keat Chee , Toshiro Higuchi
IPC分类号： B07C5/36
CPC分类号： B07C5/366 , B07B4/02 , B07C5/3422 , B07C5/3425 , B07C5/365 , F16K31/004 , Y10S209/938
摘要： A piezoelectric valve comprising: a valve main body formed in which are a gas pressure chamber that takes in compressed gas supplied from the outside as well as a gas release channel through which the compressed gas is released from the gas pressure chamber; a valve body placed in the gas pressure chamber to open and close the gas release channel; a piezoelectric element that generates, in the form of displacement, a driving force needed to operate the valve body; at least one displacement amplification mechanism that amplifies a displacement of the piezoelectric element and causes it to act upon the valve body; and a driving means for applying voltage to the piezoelectric element in order to drive the valve body to open the valve and thereby open the gas release channel; wherein such piezoelectric valve is characterized in that the driving means applies voltage to the piezoelectric element in multiple stages so as to suppress fluctuation in the amount of gas ejected from the gas release channel when the valve opens.
摘要翻译：一种压电阀，包括：阀主体，其形成有从外部供应的压缩气体的气体压力室以及压缩气体从气体压力室释放的气体释放通道; 阀体，放置在气体压力室中以打开和关闭气体释放通道; 以位移的形式产生操作阀体所需的驱动力的压电元件; 至少一个位移放大机构，其放大所述压电元件的位移并使其作用在所述阀体上; 以及用于向压电元件施加电压以驱动阀体以打开阀并由此打开气体释放通道的驱动装置; 其特征在于，所述驱动装置以多级对所述压电元件施加电压，以便抑制当所述阀打开时从所述气体释放通道喷出的气体的波动。

4. 发明授权

US07360750B2 Piezoelectric air valve and multiple-type piezoelectric air valve 有权
标题翻译：压电空气阀和多型压电空气阀
公开(公告)号：US07360750B2
公开(公告)日：2008-04-22
申请号：US10822126
申请日：2004-04-09
申请人： Takeshi Yano , Toshiro Higuchi , Kenichi Kudoh , Sze Keat Chee , Tsunehiko Shibata , Norimasa Ikeda
发明人： Takeshi Yano , Toshiro Higuchi , Kenichi Kudoh , Sze Keat Chee , Tsunehiko Shibata , Norimasa Ikeda
IPC分类号： F16K31/12
CPC分类号： F16K31/006 , Y10T137/87877
摘要： The air valve includes a valve body for controlling operations to open and close the communication between an air pressure chamber and an air outlet, a piezoelectric element for generating driving force in the form of displacements, and a displacement enlarging mechanism for enlarging the small displacements generated by the piezoelectric element by the principle of a pry and applying the enlarged displacements to the valve body. The enlarged displacements cause a large and sufficient gap to be developed between the air pressure chamber and the air outlet when a voltage is applied to the piezoelectric element. When the applying of voltage to the piezoelectric element is stopped, the resetting force of the piezoelectric element itself causes the gap to be closed quickly.
摘要翻译：空气阀包括用于控制打开和关闭空气压力室和空气出口之间的连通的操作的阀体，用于产生位移形式的驱动力的压电元件和用于扩大产生的小位移的位移扩大机构通过撬动的原理由压电元件施加扩大的位移到阀体。当对压电元件施加电压时，扩大的位移导致在空气压力室和空气出口之间形成大的和充分的间隙。当压电元件施加电压停止时，压电元件本身的复位力使间隙快速闭合。

5. 发明申请

US20100220405A1 DRIVING METHOD OF LENS ACTUATOR 审中-公开
标题翻译：镜头执行器的驱动方法
公开(公告)号：US20100220405A1
公开(公告)日：2010-09-02
申请号：US12670345
申请日：2008-07-28
申请人： Sze Keat Chee , Takeshi Yano , Tomoyuki Kugou
发明人： Sze Keat Chee , Takeshi Yano , Tomoyuki Kugou
IPC分类号： G02B7/04 , G02B7/02
CPC分类号： G02B7/08 , H02N2/043 , H02N2/06
摘要： (Problem) To suppress vibration generated while rising of a reciprocating lens actuator using a piezoelectric element or the like as a driving source and to shorten a rising speed.(Solving Means) By setting a time of a rising portion to a period corresponding to a natural frequency of a driving source, it is possible to prevent resonance of the driving source while rising so as to suppress vibration after rising and to increase a rising speed. In addition, by returning to an original point before driving, it is possible to improve reproducibility of movement displacement of the input signal.
摘要翻译：（问题）为了抑制使用压电元件等作为驱动源的往复式透镜致动器的上升产生的振动并缩短上升速度。（解决方案）通过将上升部分的时间设定为与驱动源的固有频率相对应的周期，可以防止驱动源在上升期间的共振，从而抑制上升之后的振动，并且增加上升速度。此外，通过在驱动前返回原点，可以提高输入信号的移动位移的再现性。

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