公开(公告)号：US20170082508A1

公开(公告)日：2017-03-23

申请号：US15126275

申请日：2015-03-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKAAKI OGAWA ,  KAZUHIRO NOMURA ,  MASAHIKO OBAYASHI ,  ATSUO TAKEKAWA ,  KOUICHI ABURATA ,  KOUJI NABETANI ,  KOICHIRO NAKASHIMA ,  TOSHIHARU MOTOFUSA ,  SHINPEI ODA

IPC: G01L1/22

CPC classification number: G01L1/2287 ,  G01L1/2218 ,  G01L1/2231 ,  G01L1/2262

Abstract: A strain sensor includes a cylindrical strain body extending in an axial direction, a first fixed part, a second fixed part, and a strain detection element. The first fixed part is connected to the strain body at a first connection part and extends from an opening of a first end of the strain body in the axial direction. The second fixed part is connected to the strain body at a second connection part and extends from an opening of a second end of the strain body in a direction opposite to the first fixed part with a gap interposed between the strain body and the second fixed part. The strain detection element is disposed such that a center of the strain detection element is closer to the second fixed part than a center of the gap in the axial direction.