相关实验视频

Updated: Jun 3, 2025

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

通过使用专门安装的光纤使用分布式光纤传感监测铁路桥的监控

Kinzo Kishida¹, Thein Lin Aung¹, Ruiyuan Lin²

¹Neubrex Co., Ltd., Sakaemachidori 1-1-24, Chuo-ku, Kobe 650-0023, Japan.

Sensors (Basel, Switzerland)

|January 11, 2025

概括

分布式光纤传感 (DFOS) 有效地监控了一座铁路桥.

科学领域:

土木工程土木工程是指土木工程.
地质技术工程地质技术工程
结构健康监测结构健康监测

背景情况:

民用基础设施需要持续监控安全和维护.
传统的监控方法在范围和实时数据采集方面可能受到限制.
光纤传感为全面的基础设施监控提供了一个有希望的替代方案.

研究的目的:

评估分布式光纤传感 (DFOS) 在民用基础设施监控中的有效性.
证明DFOS在评估结构变形和安全方面的应用.
展示DFOS在现实场景中的静态和动态测量的能力.

主要方法:

在高架铁路桥的1公里跨度上部署应变感应纤维.
集成多个纤维来计算3D桥梁变形.
利用分布式声学传感 (DAS) 进行动态列车监控.

主要成果:

通过使用DFOS成功计算了3D桥梁变形.
实现了地震 (M6.4和M6.8) 后桥梁的快速安全验证.
证明了DFOS适用于静态和动态结构监测的适用性.

结论:

对于关键基础设施的实时结构健康监测,DFOS技术非常有效.
该系统为即时的安全评估提供了关键数据,特别是在地震事件后.
光纤传感为民用结构的全面静态和动态监测提供了强大的解决方案.

关键词:

这就是DAS DAS.在DFOS中,使用DFOS.这就是SHM SHM.桥梁监控监控桥梁监控铁路监控铁路监控铁路监控

更多相关视频

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping

Published on: November 7, 2016

Optimized Sealing Process and Real-Time Monitoring of Glass-to-Metal Seal Structures

Optimized Sealing Process and Real-Time Monitoring of Glass-to-Metal Seal Structures

Published on: September 2, 2019

相关概念视频

Design Example: Strain Gauge Bridge or Wheatstone Bridge

Design Example: Strain Gauge Bridge or Wheatstone Bridge

The utilization of strain gauges as transducers for converting mechanical strain into electrical signals is a common practice in various engineering applications. These strain gauges are frequently integrated into Wheatstone bridge circuits to accurately measure parameters such as force or pressure. Within this context, each element within the circuit exhibits a resistance that undergoes subtle variations when subjected to mechanical strain. The primary objective is to convert minuscule...