公开(公告)号：US10232674B2

公开(公告)日：2019-03-19

申请号：US15386148

申请日：2016-12-21

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yuya Genmei

IPC: B60C23/06 ,  G01L9/08 ,  G01L17/00 ,  G01L9/00 ,  H01L41/047 ,  H01L41/113 ,  B60C19/00

Abstract: A piezoelectric sensor includes a substrate and a piezoelectric element, and at least a pair of mounting electrodes on one main surface of the substrate. The piezoelectric element includes a laminate including a first terminal electrode and a second terminal electrode respectively bonded to the mounting electrodes by bonding materials.

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.