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    Coaxial flexible piezoelectric cable polarizer, polarizing method, defect detector, and defect detecting method
    4.
    发明授权
    Coaxial flexible piezoelectric cable polarizer, polarizing method, defect detector, and defect detecting method 失效
    同轴柔性压电电缆偏振器，偏振方法，缺陷检测器和缺陷检测方法

    公开(公告)号：US07199508B2

    公开(公告)日：2007-04-03

    申请号：US10485491

    申请日：2002-08-01

    申请人： Mitsuo Ebisawa ,  Takeshi Nagai ,  Tooru Sugimori

    发明人： Mitsuo Ebisawa ,  Takeshi Nagai ,  Tooru Sugimori

    IPC分类号： H01L41/08

    CPC分类号： H01L41/45 ,  G01R31/021 ,  G01R31/083 ,  H01L41/087 ,  H01L41/257 ,  Y10S310/80 ,  Y10T29/42

    摘要： The invention provides a defect inspecting apparatus and a defect detecting method for specifying a position of a defect before polarization when the defect is included in a coaxial flexible piezoelectric member. Further, when a piezoelectric tube is moved in polarization, a friction force is produced between the coaxial flexible piezoelectric member and a block-like conductor and therefore, a large force is needed in moving the piezoelectric tube. The invention provides a polarizing apparatus and a polarizing method capable of moving the piezoelectric tube even by a small force.There are provided a defect detecting apparatus of a coaxial flexible piezoelectric member having a constitution of applying a direct current to a coaxial flexible piezoelectric member while moving a piezoelectric tube arranged at a hole of inspecting electrode means and a marking apparatus for marking a defect portion. Thereby, when a defect is present at a portion thereof arranged at the hole of the inspecting electrode means, electricity is discharged at the defect portion and therefore, the defect portion can be specified and the mark can be attached to the defect portion. Further, a conductive block provided with a path portion of the piezoelectric tube is divided. By dividing the block-like conductor by a plural number, a friction force between the block-like conductor per divided one and the piezoelectric tube is reduced. Further, the piezoelectric tube can be moved by a small force by a pulley arranged at a fold back portion of the piezoelectric tube.

    摘要翻译： 本发明提供了一种缺陷检查装置和缺陷检测方法，用于在缺陷包含在同轴柔性压电元件中时指定极化之前的缺陷的位置。 此外，当压电管偏振移动时，在同轴的柔性压电元件和块状导体之间产生摩擦力，因此在移动压电管时需要较大的力。 本发明提供一种能够通过小的力移动压电管的偏振装置和偏振方法。

    Vehicle tire and system for generating electrical energy in the tire
    5.
    发明授权
    Vehicle tire and system for generating electrical energy in the tire 失效
    用于在轮胎中产生电能的车辆轮胎和系统

    公开(公告)号：US06992423B2

    公开(公告)日：2006-01-31

    申请号：US10257215

    申请日：2001-04-12

    申请人： Federico Mancosu ,  Giuseppe Matrascia ,  Diego Villa

    发明人： Federico Mancosu ,  Giuseppe Matrascia ,  Diego Villa

    IPC分类号： H01L41/113

    CPC分类号： B60C23/0411 ,  H01L41/087 ,  H02N2/18

    摘要： A system for generating electrical energy in a tire for a vehicle includes at least one piezoelectric element that generates electrical energy when deformed. The at least one piezoelectric element is associated with the tire and is elongate. The at least one piezoelectric element extends along at least a portion of the tire and is electrically connected to an electrical circuit. The electrical circuit is not in electrical communication with the vehicle. The tire is mounted on a rim of the vehicle. An associated tire is also disclosed.

    摘要翻译： 用于在车辆用轮胎中产生电能的系统包括至少一个在变形时产生电能的压电元件。 至少一个压电元件与轮胎相关联并且是细长的。 至少一个压电元件沿着轮胎的至少一部分延伸并且电连接到电路。 电路不与车辆电连通。 轮胎安装在车辆的轮辋上。 还公开了一种相关的轮胎。

    Generation of electrical energy by weighted, resilient piezoelectric elements
    7.
    发明授权
    Generation of electrical energy by weighted, resilient piezoelectric elements 失效
    通过加权弹性压电元件产生电能

    公开(公告)号：US5552657A

    公开(公告)日：1996-09-03

    申请号：US388557

    申请日：1995-02-14

    申请人： Michael Y. Epstein ,  George W. Taylor

    发明人： Michael Y. Epstein ,  George W. Taylor

    IPC分类号： F03B13/20 ,  H01L41/087 ,  H01L41/113 ,  H02N2/18 ,  H01L41/08

    CPC分类号： H02N2/18 ,  F03B13/20 ,  H01L41/087 ,  Y02E10/38 ,  Y10S310/80

    摘要： Disposed within a float on the surface of a body of water is a vertically suspended, resilient piezoelectric element provided with a preselected strain by a hanging weight. The piezoelectric system functions as a weighted coiled spring which is driven into oscillation in response to movements of the float in response to passing surface waves. Preferably, the natural frequency of the system is selected in correspondence with the frequency of the passing waves for causing the system to oscillate in resonance with the passing waves. Additionally, a mechanism is provided for automatically adjusting the natural frequency of the system in response to changing wave conditions for maintaining the system in resonance with the waves.

    摘要翻译： 在水体表面上的浮子内设置有垂直悬挂的弹性压电元件，其通过悬挂重量设置有预选的应变。 压电系统用作加权螺旋弹簧，其响应于通过的表面波响应于浮子的运动而被驱动成振荡。 优选地，根据通过波的频率来选择系统的固有频率，以使系统与通过波共振地振荡。 此外，提供了一种机制，用于响应于改变的波浪条件自动调整系统的固有频率，以保持系统与波的共振。

    Poling process for linear piezoelectric strain transducers
    8.
    发明授权
    Poling process for linear piezoelectric strain transducers 失效
    线性压电应变传感器的抛光过程

    公开(公告)号：US3862477A

    公开(公告)日：1975-01-28

    申请号：US38909873

    申请日：1973-08-16

    申请人： GEN DYNAMICS CORP

    发明人： AYERS WESTON D ,  HIRSCH JOSEPH G

    IPC分类号： G08B13/20 ,  G08G1/01 ,  H01B13/016 ,  H01L41/087 ,  B01J17/00

    CPC分类号： G08G1/01 ,  G08B13/20 ,  H01B13/0167 ,  H01L41/087 ,  Y10S310/80 ,  Y10T29/42

    摘要： A process for producing sufficient piezoelectric effect in plastic dielectric coaxial cable to obtain a highly sensitive linear strain transducer. The process combines a selected soak temperature profile with the application of high voltage DC to maximize sensitivity and uniformity. The plastic dielectric material exhibits a high level of piezoelectric activity when processed according to the invention so that, for example, the cable is sensitive to the passage of humans or vehicles when buried in the ground.

    摘要翻译： 在塑料电介质同轴电缆中产生足够的压电效应以获得高灵敏度的线性应变传感器的方法。 该过程将所选择的浸泡温度曲线与高压DC的应用相结合，以最大化灵敏度和均匀性。 当根据本发明进行处理时，塑料介电材料表现出高水平的压电活性，使得例如当电缆埋入地下时，电缆对人或车辆的通过敏感。

    Piezoelectric Member
    10.
    发明申请
    Piezoelectric Member 审中-公开

    公开(公告)号：US20190252596A1

    公开(公告)日：2019-08-15

    申请号：US16209190

    申请日：2018-12-04

    申请人： Hitachi Metals, Ltd.

    发明人： Katsuya AKIMOTO ,  Yukio IKEDA

    IPC分类号： H01L41/047 ,  H01L41/113 ,  H01L41/087

    CPC分类号： H01L41/0477 ,  H01L41/087 ,  H01L41/1132

    摘要： A piezoelectric body that is excellent in endurance, flexibility and bendability is achieved. A piezoelectric member includes: belt type first and second conductive rubber sheets that face each other; and a piezoelectric layer formed between an upper surface of the first conductive rubber sheet and a lower surface of the second conductive rubber sheet. The piezoelectric layer is made of a piezoelectric coating material with which at least either one of the upper surface of the first conductive rubber sheet and the lower surface of the second conductive rubber sheet is coated. When a pressure is applied to the piezoelectric layer through at least either one of the first conductive rubber sheet and the second conductive rubber sheet, a potential difference is generated between the first conductive rubber sheet and the second conductive rubber sheet.