公开(公告)号：US20160216166A1

公开(公告)日：2016-07-28

申请号：US15025334

申请日：2014-09-30

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： IL-BUM KWON ,  JOO EUN IM ,  MI HYUN KIM ,  KI SUN CHOI

IPC: G01L1/24 ,  G01B11/16

CPC classification number: G01L1/246 ,  G01B1/00 ,  G01B11/16 ,  G01B11/165 ,  G01B11/18 ,  G01D5/353 ,  G01D5/35316 ,  G01D5/3537

Abstract: The present invention relates to an FBG sensor for measuring a maximum strain of an object being measured, a method for manufacturing the sensor, and a method of using the sensor. To this end, provided is the FBG sensor for measuring a maximum strain, comprising: an optical fiber (130) having an FBG sensor (150) therein; a first metallic foil (120) contacting the optical fiber (130) on one surface thereof; a second metallic foil (120) which comes into surface-contact with the one surface; an adhesive layer (140) provided between the first and second metallic foils (100, 120); a means for measuring a residual strain of the first and second metallic foils (100, 120) through the FBG sensor (150); and a means for calculating a maximum strain on the basis of the measured residual strain and a sensitivity coefficient (Csen) obtained through experimentation.

Abstract translation: 本发明涉及一种用于测量待测物体的最大应变的FBG传感器，一种用于制造传感器的方法，以及使用该传感器的方法。 为此，提供了用于测量最大应变的FBG传感器，包括：其中具有FBG传感器（150）的光纤（130）; 在其一个表面上接触光纤（130）的第一金属箔（120）; 与所述一个表面进行表面接触的第二金属箔（120）; 设置在第一和第二金属箔（100,120）之间的粘合层（140）; 用于测量通过FBG传感器（150）的第一和第二金属箔（100,120）的残余应变的装置; 以及基于通过实验获得的测量的残余应变和灵敏度系数（Csen）来计算最大应变的方法。