利用分布式光纤传感器（DFOS）对大型污水收集器进行玻璃纤维增强塑料（GRP）面板的加强监测。

Monitoring of Large Diameter Sewage Collector Strengthened with Glass-Fiber Reinforced Plastic (GRP) Panels by Means of Distributed Fiber Optic Sensors (DFOS).

机构信息

Faculty of Building Services, Hydro and Environmental Engineering, Warsaw University of Technology, Nowowiejska Street 20, 00-653 Warsaw, Poland.

Reinforced Concrete Structures Division, Faculty of Civil Engineering, Cracow University of Technology, Warszawska Street 24, 31-155 Cracow, Poland.

出版信息

Sensors (Basel). 2021 Oct 3;21(19):6607. doi: 10.3390/s21196607.

DOI:10.3390/s21196607

PMID:34640927

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8512076/

Abstract

Diagnostics and assessment of the structural performance of collectors and tunnels require multi-criteria as well as comprehensive analyses for improving the safety based on acquired measurement data. This paper presents the basic goals for a structural health monitoring system designed based on distributed fiber optic sensors (DFOS). The issue of selecting appropriate sensors enabling correct strain transfer is discussed hereafter, indicating both limitations of layered cables and advantages of sensors with monolithic cross-section design in terms of reliable measurements. The sensor's design determines the operation of the entire monitoring system and the usefulness of the acquired data for the engineering interpretation. The measurements and results obtained due to monolithic DFOS sensors are described hereafter on the example of real engineering structure-the Burakowski concrete collector in Warsaw during its strengthening with glass-fiber reinforced plastic (GRP) panels.

摘要

诊断和评估集热器和隧道的结构性能需要多标准以及全面的分析，以便根据所获得的测量数据提高安全性。本文介绍了基于分布式光纤传感器 (DFOS) 设计的结构健康监测系统的基本目标。此后，讨论了选择能够正确传递应变的合适传感器的问题，指出了分层电缆的局限性以及具有整体横截面设计的传感器在可靠测量方面的优势。传感器的设计决定了整个监测系统的运行以及所获得的数据对于工程解释的有用性。此后，将根据实际工程结构-华沙的 Burakowski 混凝土集热器在使用玻璃纤维增强塑料 (GRP) 板进行加固期间的例子，描述由于整体 DFOS 传感器而获得的测量和结果。