公开(公告)号：US10429255B2

公开(公告)日：2019-10-01

申请号：US15433158

申请日：2017-02-15

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yuya Genmei ,  Jiro Inoue ,  Masayuki Ichimaru

IPC: G01L1/00 ,  G01L1/16 ,  G01B7/16 ,  H01L41/047 ,  H01L41/04 ,  H01L41/053 ,  H01L41/113

Abstract: A piezoelectric sensor is fixed to a detection object and detects distortion of the detection object includes first and second principal surfaces, and extends in the lengthwise direction. The piezoelectric sensor includes a piezoelectric body whose polarization axis extends in a direction parallel or substantially parallel to the lengthwise direction, and first and second detecting electrodes that are provided on a surface of the piezoelectric body and that extend in a direction parallel or substantially parallel to the lengthwise direction. Distortion of the detection object is detected based on electric output corresponding to shear stress of the piezoelectric body.

公开(公告)号：US20130307373A1

公开(公告)日：2013-11-21

申请号：US13948510

申请日：2013-07-23

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Jiro Inoue

IPC: H01L41/04 ,  H02N2/00

CPC classification number: H01L41/042 ,  H02N2/001 ,  H02N2/025 ,  H02N2/043

Abstract: A displacement member with a driving element that includes first and second side surfaces that extend in a first direction and top and bottom surfaces that extend in a second direction perpendicular to the first direction. The driving element is a piezoelectric element that expands and contracts in the second direction when a pulsed voltage is applied. Further, an elastic conversion element is provided that contains the driving element and includes a first portion that is disposed adjacent the top surface of the driving element and that includes a displacement portion that is displaced downwardly and upwardly in the first direction when the driving element expands and contracts in the second direction, respectively.

Abstract translation: 具有驱动元件的位移构件，其包括在第一方向上延伸的第一和第二侧表面以及在垂直于第一方向的第二方向上延伸的顶表面和底表面。 驱动元件是当施加脉冲电压时在第二方向上膨胀和收缩的压电元件。 此外，提供了一种弹性转换元件，其包含驱动元件，并且包括邻近驱动元件的顶表面设置的第一部分，并且包括当驱动元件膨胀时沿第一方向向下和向上移位的位移部分 并分别在第二个方向收缩。

公开(公告)号：US09455394B2

公开(公告)日：2016-09-27

申请号：US13948510

申请日：2013-07-23

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Jiro Inoue

IPC: H01L41/04 ,  H02N2/02 ,  H02N2/00

CPC classification number: H01L41/042 ,  H02N2/001 ,  H02N2/025 ,  H02N2/043

Abstract: A displacement member with a driving element that includes first and second side surfaces that extend in a first direction and top and bottom surfaces that extend in a second direction perpendicular to the first direction. The driving element is a piezoelectric element that expands and contracts in the second direction when a pulsed voltage is applied. Further, an elastic conversion element is provided that contains the driving element and includes a first portion that is disposed adjacent the top surface of the driving element and that includes a displacement portion that is displaced downwardly and upwardly in the first direction when the driving element expands and contracts in the second direction, respectively.

Abstract translation: 具有驱动元件的位移构件，其包括在第一方向上延伸的第一和第二侧表面以及在垂直于第一方向的第二方向上延伸的顶表面和底表面。 驱动元件是当施加脉冲电压时在第二方向上膨胀和收缩的压电元件。 此外，提供了一种弹性转换元件，其包含驱动元件，并且包括邻近驱动元件的顶表面设置的第一部分，并且包括当驱动元件膨胀时沿第一方向向下和向上移位的位移部分 并分别在第二个方向收缩。