公开(公告)号：US20230189653A1

公开(公告)日：2023-06-15

申请号：US17910193

申请日：2021-03-03

申请人： Fujikura Ltd.

发明人： Sho Ueda ,  Yuki Tanaka ,  Masayoshi Omura

IPC分类号： H10N30/30 ,  H10N30/60 ,  G01L1/16

CPC分类号： H10N30/302 ,  H10N30/60 ,  G01L1/16

摘要： A piezoelectric coaxial sensor includes: a center conductor including a conductive wire; a polymer piezoelectric layer covering an outer peripheral surface of the center conductor; a first outer conductor surrounding an outer peripheral surface of the polymer piezoelectric layer; a first jacket layer covering an outer peripheral surface of the first outer conductor; and a second outer conductor surrounding an outer peripheral surface of the first jacket layer. A voltage is generated between the center conductor and the first outer conductor based on induced charges generated in the polymer piezoelectric layer.