Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Instrumentation design for bridge scour monitoring using fiber Bragg grating sensors

Not Accessible

Your library or personal account may give you access

Abstract

Scour is one of the main causes of bridge failures. In order to measure and monitor scour depth variations including deposition (refilling) process, three designs for a scour monitoring system using fiber Bragg grating (FBG) sensors are discussed in the present study. By a comparative study, one of them is recommended in the present study and its instrumentation manufacture process is also introduced in detail. Using this recommended design, the advantages of FBG sensors for monitoring, such as immunity from electromagnetic interference and multiplexing capability, can be fully utilized. Both scour depth variations and entire scour development process including deposition process can be correctly monitored in real-time by continuously identifying the locations of emerging FBG sensors from the riverbed. A reliable sensor protection measure is also designed for FBG sensors in harsh environments, especially in floods. Finally, a verification test using a flume is carried out in the laboratory and three experimental cases are conducted to demonstrate the capability of FBG sensors and applicability of the recommended scour monitoring system. It can be concluded that the recommended scour monitoring system using FBG sensors is capable of measuring the water level, (maximum) scour depth, entire process of scour development, and deposition height due to refilling process. The advantages over other conventional scour monitoring systems are clearly demonstrated.

©2012 Optical Society of America

Full Article  |  PDF Article
More Like This
Optical system for monitoring groundwater pressure and temperature using fiber Bragg gratings

Yen-Te Ho, Yu-Li Wang, Liang-Cheng Chang, Tzu-Pin Wang, and Jui-Pin Tsai
Opt. Express 29(11) 16032-16045 (2021)

Railroad bridge instrumentation with fiber-optic sensors

Wanku Lee, Jongseo Lee, Craig Henderson, Henry F. Taylor, Ray James, Chung E. Lee, Victor Swenson, Robert A. Atkins, and William G. Gemeiner
Appl. Opt. 38(7) 1110-1114 (1999)

Design and experimental study of a fiber Bragg grating strain sensor with enhanced sensitivity

Jianjun Pan, Wei Hou, Liangying Wang, Zisong Zou, and Fan Xiao
Appl. Opt. 61(28) 8172-8179 (2022)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (15)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved