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    Wave-receiving piezoelectric device
    2.
    发明公开
    Wave-receiving piezoelectric device 失效
    波接收的压电装置。

    公开(公告)号：EP0669169A3

    公开(公告)日：1996-08-07

    申请号：EP95300269.8

    申请日：1995-01-17

    申请人： KUREHA KAGAKU KOGYO KABUSHIKI KAISHA

    发明人： Sato, Takashi, c/o Kureha Kagaku Kogyo K. K. ,  Moriyama, Nobuhiro, c/o Kureha Kagaku Kogyo K. K. ,  Suzuki, Kazuyuki, c/o Kureha Kagaku Kogyo K. K. ,  Nakamura, Kenichi, c/o Kureha Kagaku Kogyo K. K.

    IPC分类号： B06B1/06

    CPC分类号： B06B1/0655 ,  H04R17/00

    摘要： A wave-receiving piezoelectric device (10) is constituted by providing a tubular piezoelectric element (1) including a piezoelectric body (2) which has an outer surface (2a) and an inner surface (2b) constituting principal two surfaces, two opposite sides (2c,2d) almost perpendicular to the two surfaces, a sectional shape corresponding to the thickness of a closed loop or a vortex, and an overall shape of roughly a tube, the piezoelectric body being polarized thicknesswise; and electrodes (3a,3b) respectively disposed on the two surfaces; and by sandwiching the piezoelectric body at the two opposite sides with a pair of rigid members (4,5); so that an acoustic pressure received by outer surfaces of the rigid members (4,5) is concentratively applied as a stress for changing a distance between the two opposite sides (2c,2d) of the piezoelectric body (1). As a result, the piezoelectric device (10) is provided with a remarkably increased hydrostatic piezoelectric constant (d h ) through selective enhancement of the contribution of axial deformation stress (d 31 or d 32 stress) than the piezoelectric body is used in an ordinary manner.

    Wave-receiving piezoelectric device
    3.
    发明公开
    Wave-receiving piezoelectric device 失效
    。。。。。。。。。。。

    公开(公告)号：EP0669169A2

    公开(公告)日：1995-08-30

    申请号：EP95300269.8

    申请日：1995-01-17

    申请人： KUREHA KAGAKU KOGYO KABUSHIKI KAISHA

    发明人： Sato, Takashi, c/o Kureha Kagaku Kogyo K. K. ,  Moriyama, Nobuhiro, c/o Kureha Kagaku Kogyo K. K. ,  Suzuki, Kazuyuki, c/o Kureha Kagaku Kogyo K. K. ,  Nakamura, Kenichi, c/o Kureha Kagaku Kogyo K. K.

    IPC分类号： B06B1/06

    CPC分类号： B06B1/0655 ,  H04R17/00

    摘要： A wave-receiving piezoelectric device (10) is constituted by providing a tubular piezoelectric element (1) including a piezoelectric body (2) which has an outer surface (2a) and an inner surface (2b) constituting principal two surfaces, two opposite sides (2c,2d) almost perpendicular to the two surfaces, a sectional shape corresponding to the thickness of a closed loop or a vortex, and an overall shape of roughly a tube, the piezoelectric body being polarized thicknesswise; and electrodes (3a,3b) respectively disposed on the two surfaces; and by sandwiching the piezoelectric body at the two opposite sides with a pair of rigid members (4,5); so that an acoustic pressure received by outer surfaces of the rigid members (4,5) is concentratively applied as a stress for changing a distance between the two opposite sides (2c,2d) of the piezoelectric body (1). As a result, the piezoelectric device (10) is provided with a remarkably increased hydrostatic piezoelectric constant (d h ) through selective enhancement of the contribution of axial deformation stress (d 31 or d 32 stress) than the piezoelectric body is used in an ordinary manner.

    摘要翻译： 波导接收压电元件是通过提供一种管状压电元件构成的，该管状压电元件包括​​具有外表面和构成主要两个表面的内表面的压电体，两个相对的两个表面几乎垂直于两个表面，其截面形状对应于 闭环或涡流，以及大致为管的整体形状，所述压电体的厚度方向偏振; 和分别设置在两个表面上的电极; 并且通过在两个相对侧将压电体夹在一对刚性构件上; 使得由刚性构件的外表面接收的声压被集中施加作为用于改变压电体的两个相对侧之间的距离的应力。 结果，通过选择性地提高轴向变形应力（d31或d32应力）的贡献，压电装置通常以普通的方式使用压电体，从而提供了显着提高的静水压电常数（dh）。

    Piezoelectric device and process for production thereof
    4.
    发明公开
    Piezoelectric device and process for production thereof 失效
    Piezoelektrische Anordnung und Verfahren zur Herstellung。

    公开(公告)号：EP0655790A1

    公开(公告)日：1995-05-31

    申请号：EP93309399.9

    申请日：1993-11-25

    申请人： KUREHA KAGAKU KOGYO KABUSHIKI KAISHA

    发明人： Sato, Takashi, c/o Kureha Kagaku Kogyo K. K. ,  Suzuki, Kazuyuki, c/o Kureha Kagaku Kogyo K. K. ,  Moriyama, Nobuhiro, c/o Kureha Kagaku Kogyo K. K. ,  Nakamura, Kenichi, c/o Kureha Kagaku Kogyo K. K.

    IPC分类号： H01L41/22

    CPC分类号： H01L41/113 ,  H01L41/047 ,  H01L41/45 ,  H04R17/00 ,  Y10S310/80

    摘要： A sheet-form piezoelectric device having improved mechanical strengths as represented by an electrode peel strength while retaining flexibility and piezoelectric performances of a polymer-type piezoelectric device, is obtained by embedding a perforated sheet electrode into at least one surface layer of a polymer piezoelectric film treated with a solvent in advance. The sheet-form piezoelectric device may be wound or curved about a certain central axis to provide a tubular or curved piezoelectric device having wave-transmitting and/or -receiving characteristics suitable for wave-transmitting and/or -receiving devices, such as a hydrophone and microphone.

    摘要翻译： 通过将多孔片电极嵌入到聚合物压电膜的至少一个表面层中，获得具有改善的机械强度的片状压电装置，其通过电极剥离强度表示，同时保持了聚合物型压电装置的柔性和压电性能 预先用溶剂处理。 片状压电装置可以围绕某一中心轴线缠绕或弯曲以提供具有适于波发射和/或接收装置的波发射和/或接收特性的管状或弯曲的压电装置，例如水听器 和麦克风。