Distributed fiber optic sensing system for vibration monitoring of 3D printed bridges  

作　　者：ZHAO Shuai ZHOU Ran LUO Mingming LIU Jianfei LIU Xiongfei ZHOU Tao 

机构地区：[1]School of Electronic Information Engineering,Hebei University of Technology,Tianjin 300401,China [2]Tianjin Key Laboratory of Electronic Materials and Devices,Tianjin 300401,China [3]School of Civil Engineering and Transportation,Hebei University of Technology,Tianjin 300401,China [4]Tianjin Jinhang Institute of Technical Physics,Tianjin 300308,China

出　　处：《Optoelectronics Letters》2025年第1期28-34,共7页光电子快报(英文版)

基　　金：supported by the National Natural Science Foundation of China (No.6210031560);the Natural Science Foundation of Hebei Province (No.A2020202013);the Natural Science Foundation of Tianjin City (No.21JCQNJC00780)。

摘　　要：The fiber optic sensing technology provides data support in structural health monitoring of the macro facilities,including design,construction,and maintenance of bridges,tunnels,ports and other infrastructures.In this paper,a distributed vibration sensing system is proved to be responsive to a single touch over a 1.8-m-long equivalent fiber segment,covering a vibration frequency from 5 Hz to 25 kHz.The sensing fiber was arranged as an S type layout on the bridge to recognize the standing state,windblown disturbance,and walking vibration.Moreover,the knocking and climbing events are recognized fiber laying spinning lines and hanging on the fences,respectively.The demonstration shows an accurate positioning and sensitive vibration monitoring applied on the automated three-dimensional(3D) printed bridge,which is applicable to all kinds of 3D printed facilities as intelligent sensory neuro-networks.

关 键 词：FIBER BRIDGES SPINNING 

分 类 号：TP391.73[自动化与计算机技术—计算机应用技术] TP212[自动化与计算机技术—计算机科学与技术] U446[建筑科学—桥梁与隧道工程]