Structural deformation measuring device based on optical fiber sensing

• Main Authors: BAO XUEZHI, LING LIEPENG, XIE JINMEI, WANG ZHICHAO, JIN HUA, LIU XINGPING, CAO SHENGHUI, CHAI XUESONG, FENG YIJIE, LIU YANFEN, DUAN PEIYONG, TIAN DEZHU, YU GUOCHENG, SHI JIABIN, ZHOU YOU, CAI DEGOU
• Format: Patent
• Language: Chinese; English
• Published: 06.12.2022
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The utility model provides a structural deformation measuring device based on optical fiber sensing. Structural deformation serves as a measurement index, the optical fiber sensing technology is adopted, the chord measurement device is combined, the structural deformation numerical value and position calculated according to the chord length are obtained by collecting optical fiber strain data in real time and processing the optical fiber strain data, early warning and alarming can be conducted according to a management threshold value, and online monitoring of structural deformation is achieved. The sensing optical fiber adopted in the utility model has sensing and information transmission functions, does not need power supply, and is especially suitable for being used in the fields of long-distance strip-shaped distributed railways, rail transit, mine roadways, underground pipe galleries, dams and the like. 本申请提供了一种基于光纤传感的结构变形测量装置。本申请将结构变形作为测量指标，采用光纤传感技术，结合所提出的弦测装置，通过实时采集光纤应变数据，处理得到按弦长计算的结构变形数值和位置，并可根据管理阈值进行