METHOD OF MEASURING AND EVALUATING MECHANICAL OUTPUTS OF PIEZOELECTRIC ACTUATORS, CONTROLLING METHOD OF THE SAME, AND APPARATUS USING THOSE METHODS
    11.
    发明申请
    METHOD OF MEASURING AND EVALUATING MECHANICAL OUTPUTS OF PIEZOELECTRIC ACTUATORS, CONTROLLING METHOD OF THE SAME, AND APPARATUS USING THOSE METHODS 有权
    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

    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。

    Printing head of wire-dot impact printer
    15.
    发明授权
    Printing head of wire-dot impact printer 失效
    打点头打点机

    公开(公告)号:US5005994A

    公开(公告)日:1991-04-09

    申请号:US323833

    申请日:1989-03-15

    申请人: Akio Yano

    发明人: Akio Yano

    IPC分类号: B41J2/295

    CPC分类号: B41J2/295

    摘要: A printing head includes a plurality of impact printing wires constituting a dot matrix and a plurality of actuators respectively corresponding to, and for selectively driving the printing members. Each actuator comprises a movable member to which a printing wire is connected, an electro-distortion device, first and second parallel resilient members and an electro-distortion device. The first resilient member is connected with the electro-distortion device between the frame and the movable member and the second resilient member is connected directly between the frame and the movable member so that the extent of longitudinal expansion and contraction of the electro-distortion device, produced by application of an electrical voltage thereto, is enlarged by the movable member and transmitted thereby to the printing wire. A third resilient member is arranged substantially perpendicularly to the first and second resilient members and connects the movable member to the frame.

    Method of measuring and evaluating mechanical outputs of piezoelectric actuators, controlling method of the same, and apparatus using those methods
    16.
    发明授权
    Method of measuring and evaluating mechanical outputs of piezoelectric actuators, controlling method of the same, and apparatus using those methods 有权
    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

    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。

    Ink jet head providing improved printing resolution and printing speed
    19.
    发明授权
    Ink jet head providing improved printing resolution and printing speed 失效
    喷墨头提供更高的打印分辨率和打印速度

    公开(公告)号:US06243114B1

    公开(公告)日:2001-06-05

    申请号:US09170263

    申请日:1998-10-13

    IPC分类号: H04R1700

    CPC分类号: H04R17/00 B41J2002/14491

    摘要: Each of common electrode teeth 76-1, 76-2 and 76-3, and each of individual electrode teeth 77-1 and 77-2 are alternately arranged in the X1-X2 direction at predetermined intervals g. When a positive voltage is applied to the individual electrode teeth 77-1 and 77-2, an electric field 83-1 indicated by a line of electric force 82-1 is produced in a piezoelectric plate member 65 between the individual electrode tooth 77-1 and the common electrode tooth 76-1 and an electric field 83-2 indicated by a line of electric force 82-2 is produced between the individual electrode tooth 77-1 and the common electrode tooth 76-2. Likewise, an electric field 83-3 indicated by a line of electric force 82-3 is produced between the individual electrode tooth 77-2 and the common electrode tooth 76-2 and an electric field 83-4 indicated by a line of electric force 82-4 is produced between the individual electrode tooth 77-2 and the common electrode tooth 76-3. Depending on the piezoelectric constant d33, X1-X2 direction components of the electric fields causes the piezoelectric plate member 65 to expand efficiently, as indicated by numerals 83-1-83-4. An expanding action of the piezoelectric plate member 65 causes a bimorph element 69 to bulge into a dome configuration.

    摘要翻译: 公共电极齿76-1,76-2和76-3以及各个电极齿77-1和77-2中的每一个以预定间隔g在X1-X2方向交替布置。 当对各个电极齿77-1和77-2施加正电压时,在单个电极齿77-1和77-2之间的压电板构件65中产生由电力线82-1表示的电场83-1, 在单个电极齿77-1和公共电极齿76-2之间产生由电力线82-2表示的公共电极齿76-1和电场83-2。 类似地,在单独电极齿77-2和公共电极齿76-2之间产生由电力线82-3表示的电场83-3和由电力线表示的电场83-4 82-4在单个电极齿77-2和公共电极齿76-3之间产生。 根据压电常数d33,电场的X1-X2方向分量使得压电板构件65有效地膨胀,如数字83-1-83-4所示。 压电板构件65的膨胀动作使双压电晶片元件69凸出成圆顶形状。

    Piezoelectric type ink-jet printing head having a pressure chamber plate
which is less flexible than piezoelectric elements
    20.
    发明授权
    Piezoelectric type ink-jet printing head having a pressure chamber plate which is less flexible than piezoelectric elements 失效
    压电式喷墨打印头具有压电腔板,该压力室板不如压电元件柔性好

    公开(公告)号:US6007189A

    公开(公告)日:1999-12-28

    申请号:US517209

    申请日:1995-08-21

    CPC分类号: B41J2/14201

    摘要: A piezoelectric type ink-jet printing head including a pressure chamber plate having a plurality of pressure chambers and a plurality of ink supply ports for supplying ink into the respective pressure chambers, a nozzle plate having a plurality of nozzles and a piezoelectric element having a surface, at least parts thereof defining a plurality of displacement portion. The nozzle plate is attached to one of the surfaces of the pressure chamber plate, in such a manner that the respective nozzles are connected to the respective pressure chambers. The other surface of the pressure chamber plate is attached to the piezoelectric element, in such a manner that each of the displacement portions of the piezoelectric element defines at least one of walls of each of the pressure chambers.

    摘要翻译: 一种压电式喷墨打印头,包括具有多个压力室的压力室板板和用于将油墨供应到各个压力室的多个供墨口,具有多个喷嘴的喷嘴板和具有多个喷嘴的压电元件 ,其至少部分限定多个位移部分。 喷嘴板以这样的方式附接到压力室板的一个表面,使得各个喷嘴连接到相应的压力室。 压力室板的另一个表面以压电元件的每个位移部分限定每个压力室的壁中的至少一个的方式附接到压电元件。