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Fiber Loop Ringdown Sensor for Potential Real-Time Monitoring of Cracks in Concrete Structures: An Exploratory Study

Journal Article · · Sensors
DOI:https://doi.org/10.3390/s130100039· OSTI ID:1628538
 [1];  [2];  [2]
  1. Mississippi State Univ., Starkville, MS (United States). Dept. of Physics and Astronomy; DOE/OSTI
  2. Mississippi State Univ., Starkville, MS (United States). Dept. of Physics and Astronomy

A fiber loop ringdown (FLRD) concrete crack sensor is described for the first time. A bare single mode fiber (SMF), without using other optical components or chemical coatings, etc., was utilized to construct the sensor head, which was driven by a FLRD sensor system. The performance of the sensor was evaluated on concrete bars with dimensions 20 cm × 5 cm × 5 cm, made in our laboratory. Cracks were produced manually and the responses of the sensor were recorded in terms of ringdown times. The sensor demonstrated detection of the surface crack width (SCW) of 0.5 mm, which leads to a theoretical SCW detection limit of 31 μm. The sensor’s response to a cracking event is near real-time (1.5 s). A large dynamic range of crack detection ranging from a few microns (μm) to a few millimeters is expected from this sensor. With the distinct features, such as simplicity, temperature independence, near real-time response, high SCW detection sensitivity, and a large dynamic range, this FLRD crack sensor appears promising for detections of cracks when embedded in concrete.

Research Organization:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; National Science Foundation (NSF)
Grant/Contract Number:
AC09-08SR22470
OSTI ID:
1628538
Journal Information:
Sensors, Journal Name: Sensors Journal Issue: 1 Vol. 13; ISSN SENSC9; ISSN 1424-8220
Publisher:
MDPI AGCopyright Statement
Country of Publication:
United States
Language:
English

References (53)

New method for detecting cracks in concrete using fibre optics journal November 1989
Experimental studies on fiber optic sensors embedded in concrete journal February 2010
Innovations in cavity ringdown spectroscopy journal January 2005
An alternative method to develop fibre grating temperature sensors using the fibre loop ringdown scheme journal June 2006
Health monitoring of civil infrastructures journal May 2003
Review on developments in fiber optical sensors and applications conference April 2010
Embedded Quasi-Distributed Fiber-Optic Sensors for the Long-Term Monitoring of the Grouting Area of Rock Anchors in a Large Gravity Dam journal April 1999
Fiber loop ringdown for physical sensor development: pressure sensor journal January 2004
Fiber ringdown pressure sensors journal January 2004
Cavity ringdown strain gauge journal January 2004
The history and development of acoustic emission in concrete engineering journal December 1996
Chemical Sensing Using Fiber Cavity Ring-Down Spectroscopy journal March 2010
Fiber Loop Ringdown — a Time-Domain Sensing Technique for Multi-Function Fiber Optic Sensor Platforms: Current Status and Design Perspectives journal September 2009
Multimode fiber ring-down pressure sensor journal January 2007
Temperature and strain sensor based on weak LPG and fiber ring down journal January 2007
New method for detecting cracks in concrete using fibre optics journal November 1989
A novel distributed optical crack sensor for concrete structures journal January 2000
Structural health monitoring of smart composite materials by using EFPI and FBG sensors journal February 2003
Fiber optic sensor technology: an overview journal May 2000
Fiber optic sensors in concrete: the future? journal March 2001
Application of infrared thermography to the non-destructive testing of concrete and masonry bridges journal June 2003
Review of the present status of optical fiber sensors journal April 2003
Evanescent field absorption in a passive optical fiber resonator using continuous-wave cavity ring-down spectroscopy journal January 2004
Recent applications of fiber optic sensors to health monitoring in civil engineering journal September 2004
Development of fiber Bragg grating sensors for monitoring civil infrastructure journal October 2005
Fibre Bragg gratings in structural health monitoring—Present status and applications journal September 2008
Fibre Bragg grating strain sensor and study of its packaging material for use in critical analysis on steel structure journal March 2009
Cavity ring-down long period grating pressure sensor journal March 2010
Application of optical fiber distributed sensing to health monitoring of concrete structures journal August 2013
Surface-penetrating radar journal August 1996
Kinematics of Crack Formation in Cementitious Composites by Fiber Optics journal May 1993
Cavity ring‐down optical spectrometer for absorption measurements using pulsed laser sources journal December 1988
Cavity ring-down spectroscopy: Experimental schemes and applications journal October 2000
An investigation of an optical fibre amplifier loop for intra-cavity and ring-down cavity loss measurements journal June 2001
Cavity ring-down long-period fibre grating strain sensor journal September 2007
Fabrication and characterization of fiber loop ringdown evanescent field sensors journal July 2010
Monitoring of fatigue damage of composite structures by using embedded intensity-based optical fiber sensors journal April 2001
Damage detection and assessment in fibre-reinforced composite structures with embedded fibre optic sensors-review journal October 2002
Health monitoring and rehabilitation of a concrete structure using intelligent materials journal January 2006
Concrete structural health monitoring using embedded piezoceramic transducers journal May 2007
Smart aggregates: multi-functional sensors for concrete structures—a tutorial and a review journal March 2008
Health monitoring of reinforced concrete shear walls using smart aggregates journal March 2009
Multi-functional smart aggregate-based structural health monitoring of circular reinforced concrete columns subjected to seismic excitations journal May 2010
Fiber optic sensors in concrete structures: a review journal April 1996
Strain Measurement by Fiber-Loop Ring-Down Spectroscopy and Fiber Mode Converter journal July 2008
Submillimeter crack detection with brillouin-based fiber-optic sensors journal November 2009
Temperature dependence of fiber optic Bragg gratings at low temperatures journal January 1998
Applications Of Embedded Optical Fiber Sensors In Reinforced Concrete Buildings And Structures conference February 1990
Embedded Quasi-Distributed Fiber-Optic Sensors for the Long-Term Monitoring of the Grouting Area of Rock Anchors in a Large Gravity Dam journal April 1999
Review Paper: Health Monitoring of Civil Infrastructure journal September 2003
Fiber loop ringdown for physical sensor development: pressure sensor journal January 2004
Fiber ringdown pressure sensors journal January 2004
Cavity ringdown strain gauge journal January 2004

Cited By (5)

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