An Optical Interferometric Triaxial Displacement Sensor for Structural Health Monitoring: Characterization of Sliding and Debonding for a Delamination Process

This paper presents an extrinsic Fabry–Perot interferometer-based optical fiber sensor (EFPI) for measuring three-dimensional (3D) displacements, including interfacial sliding and debonding during delamination. The idea employs three spatially arranged EFPIs as the sensing elements. In our sensor, t...

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Main Authors: Chen Zhu, Yizheng Chen, Yiyang Zhuang, Yang Du, Rex E. Gerald, Yan Tang, Jie Huang
Format: Article
Language:English
Published: MDPI AG 2017-11-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/17/11/2696
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spelling doaj-385af2db86c648479f0a3e1500ff8e6e2020-11-25T00:53:32ZengMDPI AGSensors1424-82202017-11-011711269610.3390/s17112696s17112696An Optical Interferometric Triaxial Displacement Sensor for Structural Health Monitoring: Characterization of Sliding and Debonding for a Delamination ProcessChen Zhu0Yizheng Chen1Yiyang Zhuang2Yang Du3Rex E. Gerald4Yan Tang5Jie Huang6Department of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USADepartment of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USADepartment of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USADepartment of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USAAmerican Inventor Institute, Willow Spring, IL 60480, USADepartment of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USADepartment of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USAThis paper presents an extrinsic Fabry–Perot interferometer-based optical fiber sensor (EFPI) for measuring three-dimensional (3D) displacements, including interfacial sliding and debonding during delamination. The idea employs three spatially arranged EFPIs as the sensing elements. In our sensor, the three EFPIs are formed by three endfaces of three optical fibers and their corresponding inclined mirrors. Two coincident roof-like metallic structures are used to support the three fibers and the three mirrors, respectively. Our sensor was calibrated and then used to monitor interfacial sliding and debonding between a long square brick of mortar and its support structure (i.e., a steel base plate) during the drying/curing process. This robust and easy-to-manufacture triaxial EFPI-based 3D displacement sensor has great potential in structural health monitoring, the construction industry, oil well monitoring, and geotechnology.https://www.mdpi.com/1424-8220/17/11/2696three-dimensional displacementextrinsic Fabry–Perot interferometerinterfacial slidingdebondingstructural health monitoring
collection DOAJ
language English
format Article
sources DOAJ
author Chen Zhu
Yizheng Chen
Yiyang Zhuang
Yang Du
Rex E. Gerald
Yan Tang
Jie Huang
spellingShingle Chen Zhu
Yizheng Chen
Yiyang Zhuang
Yang Du
Rex E. Gerald
Yan Tang
Jie Huang
An Optical Interferometric Triaxial Displacement Sensor for Structural Health Monitoring: Characterization of Sliding and Debonding for a Delamination Process
Sensors
three-dimensional displacement
extrinsic Fabry–Perot interferometer
interfacial sliding
debonding
structural health monitoring
author_facet Chen Zhu
Yizheng Chen
Yiyang Zhuang
Yang Du
Rex E. Gerald
Yan Tang
Jie Huang
author_sort Chen Zhu
title An Optical Interferometric Triaxial Displacement Sensor for Structural Health Monitoring: Characterization of Sliding and Debonding for a Delamination Process
title_short An Optical Interferometric Triaxial Displacement Sensor for Structural Health Monitoring: Characterization of Sliding and Debonding for a Delamination Process
title_full An Optical Interferometric Triaxial Displacement Sensor for Structural Health Monitoring: Characterization of Sliding and Debonding for a Delamination Process
title_fullStr An Optical Interferometric Triaxial Displacement Sensor for Structural Health Monitoring: Characterization of Sliding and Debonding for a Delamination Process
title_full_unstemmed An Optical Interferometric Triaxial Displacement Sensor for Structural Health Monitoring: Characterization of Sliding and Debonding for a Delamination Process
title_sort optical interferometric triaxial displacement sensor for structural health monitoring: characterization of sliding and debonding for a delamination process
publisher MDPI AG
series Sensors
issn 1424-8220
publishDate 2017-11-01
description This paper presents an extrinsic Fabry–Perot interferometer-based optical fiber sensor (EFPI) for measuring three-dimensional (3D) displacements, including interfacial sliding and debonding during delamination. The idea employs three spatially arranged EFPIs as the sensing elements. In our sensor, the three EFPIs are formed by three endfaces of three optical fibers and their corresponding inclined mirrors. Two coincident roof-like metallic structures are used to support the three fibers and the three mirrors, respectively. Our sensor was calibrated and then used to monitor interfacial sliding and debonding between a long square brick of mortar and its support structure (i.e., a steel base plate) during the drying/curing process. This robust and easy-to-manufacture triaxial EFPI-based 3D displacement sensor has great potential in structural health monitoring, the construction industry, oil well monitoring, and geotechnology.
topic three-dimensional displacement
extrinsic Fabry–Perot interferometer
interfacial sliding
debonding
structural health monitoring
url https://www.mdpi.com/1424-8220/17/11/2696
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