Development and Performance Assessment of a FRP Wrapped Balsa Wood Bridge Deck in Louisiana
|
|
- Theresa Higgins
- 5 years ago
- Views:
Transcription
1 Development and Performance Assessment of a FRP Wrapped Balsa Wood Bridge Deck in Louisiana Steve C.S. Cai, Ph.D., P.E. Professor, Edwin B. Norma S. McNeil Distinguished Professor Dept. of Civil and Environmental Engineering Louisiana State University, Baton Rouge, LA Archana Nair, Miao Xia and Shuang Hou 1
2 Acknowledgments Federal Highway Administration IBRD Program and Louisiana Transportation Research Center (LTRC), LA DOTD for funding this project. Mr. Walid Alaywan for acting as project manager and Mr. Gill Gautreau, Mr. Nicholas Fagerburg, and other team members at LA DOTD for facilitating the project. The bridge deck was manufactured by Alcan Baltek Corporation and Dr. Kurt Feichtinger s effort for this project is greatly appreciated. The contents of this report reflect only the views of the writers who are responsible for the facts and the accuracy of the data presented herein. 2
3 Outline Introduction to Project OTDR-based slip monitoring FBG based moisture monitoring Field Instrumentation Plan Conclusions
4 Project Background CORIBM Bridge on route LA 70 in District 61, Assumption Parish Damaged bridge deck National Coast Guard requires a movable bridge. A light deck such as FRP deck is one of the options. 4
5 Final Selection: FRP-wrapped Balsa Wood Bridge Deck FRP Balsa wood bridge deck Damaged bridge deck 5
6 Bridge Deck Fabrication Balsa wood Fiber optic cable Hardwire Epoxy infusion
7 Concerns about the Bridge Integrity Debonding Proposing Fiber optic sensors for performance monitoring Moisture ingress 7
8 Issues of Traditional Sensors Model 4000 Vibrating Wire Strain Gage STS II Data Acquisition System and Intelliducer Foil strain gauges Fiber Optic Sensors 8
9 Fiber optic sensors have been used in structural health monitoring Advantages: Immunity to electromagnetic/radio frequency interference (EMI/RFI) Small size and light weight Long-term stability, no corrosion Distributed sensing capability Relatively safe in flammable environments 9
10 Fundamental structure of optic fiber Cladding: 125 m Core: Single mode: 9 m Multimode: 50/62.5 m Coating or buffer: 245 m The small size allows the optic fiber able to be easily coupled in FRP materials 10
11 Application of fiber optic sensors Transduction Mechanism Intensity OTDR ROTDR BOTDR Interferometer Fabry Perot(FP) Spectrometric Fiber Bragg Grating (FBG) Application Local FBG, FP Distributed OTDR, ROTDR, BOTDR Multiplexed FBG 11
12 Optic time-domain reflectometry (OTDR)- based fiber optic monitoring of slip 12
13 Principle of OTDR based monitoring AQ7250 mini-otdr Optic fiber Pulse Bending Connection Fiber end OTDR Back scatter Back scatter intensity Distance L=t v/2 t: time taken in the round trip V: light velocity in the waveguide 13
14 Optic fiber bending effect Optic power loss R: Curvature 1/ 2 AR exp( UR) It has been used for concrete crack detection Power loss(db) Crack width(mm) Concrete crack measurement 14
15 OTDR based slip monitoring method 15
16 Instrumentation plan of the project 16
17 Lab test setup Specimen Steel Two parts Interface 17
18 Sensor configuration 18
19 Lab tension test MTS machine Monotonic ramp load profile Resolution of displacement transducer: 0.5 m 19
20 OTDR traces Before the interface debonding the OTDR traces barely change 18.3 Power loss(db) Due to original bent of optical fiber Induced by the debonding of the interface Location(m) 20
21 OTDR traces At the final stage the fiber broke and there is a peak at the OTDR traces Peak due to optical fiber breaking Power loss(db) Location(m) 21
22 Interface slip vs. OTDR power loss 5 4 Power loss(db) 3 2 Interface failed Slip(mm) 22
23 Fiber Bragg Grating(FBG)-based fiber optic monitoring of moisture 23
24 Principle of Fiber Bragg Grating sensor Strain & temperature S1 S2 S3 Sn 24
25 Gage factor calibration (constraint free) Adjustable temperature chamber b b G G ε T T G : train gage factor, G T : temperature gage factor, FBG interrogator Wavelength shift(nm) FBG y = x Temperature( ) FBG1 FBG2 FBG3 FBG4 FBG5 Wavelength(nm) Cage factor(pm/ C) Theoretical value Averaged gage factor =9.92pm/ C 25
26 Balsa wood moisture monitoring FBG sensor Swelling occurs as wood gains moisture FBG sensors are used to monitor the hook expansion induced from moisture First loop: Measure hook expansion Second loop: External force free to measure temperature only
27 Balsa wood moisture monitoring FBG sensor lab test 0-5 FBG moisture sensor Refercece FBG sensor Optic fiber Specimen Wavelength change(pm) Temperature sensor Moisture content is close to saturated state Time(hour) Moisture ingress direction Moisture reaches the cross section of the sensor
28 Temperature gage factor calibration temperature gage factor 38pm/ C
29 Hoop moisture expansion of the specimen Moisture content is 70 close to saturated state Strain( ) Moisture reaches the cross section of the sensor Time(hour) The moisture expansion can be easily indentified by subtracting temperature induced strain
30 Manufacturing and Field Installation 30
31 Slip Monitoring Scheme By a single optic fiber, multiple places can be measured simultaneously
32 FBG Sensor Instrumentation Traffic response monitoring Integrity between the bridge deck and girder Moisture monitoring
33 Imbedded FBG Sensors
34 Protection of Connector
35 FRP Balsawood Slab in LaDOTD Yard
36 OTDR Slip Sensor on Top of Girder Flange Slip sensor Top flange with epoxy
37 Bonding of FRP Slab and Steel Girder
38 Complete FRP balsa wood steel girder deck panel Ready to go
39 Installation of Slab -Steel Girder Panel 39
40 Field Instrumentation and Wiring 40
41 Field testing trucks 41
42 LADOTD Engineers 42
43 Typical comparison between BDI strain gages and FBG sensors (c) Deck 3 (north end) for load case N_SR1 (d) Deck 3 (north end) for load case N_D1_30 43
44 Finite element modeling 1 ELEMENTS U F 1 ELEMENTS U F Y Z X 1 NODAL SOLUTION STEP=1 SUB =1 TIME=1 EPELX (AVG) RSYS=0 DMX = SMN =-.354E-03 SMX =.506E-03 MN 1 ELEMENTS MAT NUM U CP MX Y Z X -.354E E E E E E E E E E-03 44
45 Table 4 Strain comparisons Girder Deck SG9 SG 10 SG11 SG 12 SG3 SG4 SG15 SG16 S_SS1_a G1_Top G1_Bott G2_Top G2_Bott D_1(S) D_2(S) D_1(N) D_2(N) BDI FEM (C)* FEM(N_C)** S_SS1_b BDI FEM (C) FEM N_C) S_SS1_c BDI FEM (C) FEM(N_C)
46 Acceleration measurement Acceleration from sensors A1-A6 for N_D1_55 load case (north bound) 46
47 Typical monitored strain data 47
48 Conclusions A distributed fiber-optic monitoring method based on optic time domain reflectormetry(otdr) has been proposed to monitor the interface slip between bridge deck and girder which are bonded together. From the preliminary work, it can be concluded that the occurrence of interface failure at the critical slip value can be identified by the proposed sensing system and the extent of slip can be estimated by the induced optic power loss. A moisture monitoring techniques using FBG sensors is put forward, by which volume change is measured to indicate the moisture. The expansion of the FRP wrapped Balsa wood due to moisture action is evident and can be used to indicate the moisture change. 48
49 49
Long-Range Displacement Sensor Based on SMS Fiber Structure and OTDR
PHOTONIC SENSORS / Vol. 5, No. 2, 2015: 166 171 Long-Range Displacement Sensor Based on SMS Fiber Structure and OTDR A. ARIFIN 1,3*, A. M. HATTA 2,4, SEKARTEDJO 2, M. S. MUNTINI 1, and A. RUBIYANTO 1 1
More informationHealth Monitoring System Using FBG-Based Sensors for a 12-Story Building with Column Dampers.
8 th SPIE International Symposium of Smart Structures and Materials, Newport Beach, USA, 4-8/Mar., 001 Health Monitoring System Using FBG-Based Sensors for a 1-Story Building with Column Dampers. Hideaki
More informationOverview of fiber optic sensing system: BOTDR and its applications
1 Overview of fiber optic sensing system: BOTDR and its applications Hiroshi Naruse Mie University June 12, 2008 in Santiago, Chile Introduction of Mie University 2 There are about 70 national universities
More informationLuna Technologies Webinar Series. New Rayleigh-Based Technique for Very High Resolution Distributed Temperature and Strain Sensing
Luna Technologies Webinar Series New Rayleigh-Based Technique for Very High Resolution Distributed Temperature and Strain Sensing Dr. Dawn Gifford Senior Optical Engineer Mr. Ed Valigursky VP of Sales
More informationDevelopment of optical fiber sensors for selected chemical and physical sensing applications
Preface The modern age of fiber optic sensors is enabled by the development of extremely low-loss optical fibers in late 1970s. In recent years Fiber optic sensors have developed from the research laboratory
More informationOPTICAL TIME DOMAIN REFLECTOMETRY (OTDR) Dr. BC Choudhary Professor, NITTTR, Chandigarh
OPTICAL TIME DOMAIN REFLECTOMETRY (OTDR) Dr. BC Choudhary Professor, NITTTR, Chandigarh WHAT IS AN OTDR? A measurement technique which provides the loss characteristics of an optical link down its entire
More informationSTRUCTURAL HEALTH MONITORING OF UNDERGROUND INFRASTRUCTURE
STRUCTURAL HEALTH MONITORING OF UNDERGROUND INFRASTRUCTURE SUSOM DUTTA Graduate Student UMass Lowell Co-Authors: Dr. Pradeep Kurup, Dr. Raj Gondle, Mr. Dennis Doherty, Dr. Tzuyang Yu, Dr. Xingwei Wang
More informationTransport research opportunities and needs: What can fibre optics do for us? Stephen James Engineering Photonics
Transport research opportunities and needs: What can fibre optics do for us? Stephen James Engineering Photonics My research interests Development and practical application of optical fibre sensors Multiplexed
More informationCase Study - Trains. Hong Kong, 2007
Case Study - Trains Hong Kong, 2007 FBG Sensing System for Health Monitoring of Trains 2 Aim Location System Integrator End Customer To provide real-time and continuous monitoring of the structural condition
More informationHigh-resolution Photon Counting-OTDR Based Interrogation of Multiplexing Broadband FBG Sensors
High-resolution Photon Counting-OTDR Based Interrogation of Multiplexing Broadband FBG Sensors Po Zhang Dissertation submitted to the Faculty of the Virginia Polytechnic Institute and State University
More informationIntroduction to Fiber Optic Sensing
Introduction to Fiber Optic Sensing A guide to understanding the fiber optic sensing landscape Introduction to Fiber Optic Sensing - 1 - Table of Contents Understanding the Fiber Optic Sensing Landscape...
More informationReinforced FBG Sensors Serve Demanding Applications
Reinforced FBG Sensors Serve Demanding Applications Kevin Hsu, Andrei Csipkes, and Tommy Jin Technica Optical Components / 3657 Peachtree Rd, Suite 10A, Atlanta, 30319, USA, info@technicasa.com, www.technicasa.com
More informationA Fresnel Reflection-Based Optical Fiber Sensor System for Remote Refractive Index Measurement Using an OTDR
PHOTONIC SENSORS / Vol. 4, No. 1, 2014: 48 52 A Fresnel Reflection-Based Optical Fiber Sensor System for Remote Refractive Index Measurement Using an OTDR Jianying YUAN, Chunliu ZHAO *, Manping YE, Juan
More informationAsset Integrity Monitoring
Asset Integrity Monitoring Cementys, Your Leader in Optical Fiber technology for AIM Our activities and services : Our activities are focused on our core knowledge and experience, we offer products and
More informationFiber Optic Sensor technology for Non-optical parameter measurement
Fiber Optic Sensor technology for Non-optical parameter measurement Swapnil R. Chilap 1, Mrs. Kadambari Sharma 2, 1 M.E.Student, 2 Assistant Professor, Department of Instrumentation Engineering, Vivekanand
More informationRecent Progress in Lightwave Sensing Technology
Recent Progress in Lightwave Sensing Technology Daiichiro Tanaka 1 Fiber-optic sensing is the important element of the lightwave sensing technology. Since the fibers also work as sensors various measurement
More informationFiber Optic Sensors:
Fiber Optic Sensors: Providing Cost-Effective Solutions To Industry Needs Jeffrey D. Muhs Oak Ridge National Laboratory November 2002 Properties That Can Be Sensed Using Fiber Optics Acceleration Chemicals/Gases
More informationOptical Time Domain Reflectometry (OTDR)
Experimental Optics Contact: Helena Kämmer (helena.kaemmer@uni-jena.de) Last edition: Helena Kämmer, January 2017 Optical Time Domain Reflectometry (OTDR) Contents 1 Overview 3 2 Safety issues 3 3 Theoretical
More informationChapter 1. Introduction
1.1 Background of the Proposed Research The measurement of temperature has been playing a critical role in various technical areas from civilian to military applications. According to all recent major
More informationCase Study Bridges Arsenal Bridge Rock Island, IL,
Case Study Bridges Arsenal Bridge Rock Island, IL, 2009-2010 Arsenal Bridge - General Characteristics 2 Constructed 1896, Steel Through Pratt Truss, 8 Spans Combined Two Lane Highway-Railway Structure
More informationWHITE PAPER FIBER OPTIC SENSING. Summary. Index. Introduction. About Fischer Connectors
Summary This white paper presents the technical basics behind sensing over fiber technologies, its main applications and the cabling solutions involved. Index By: Jacques Miéville, Project Manager, Fischer
More informationTemperature characterisation of LPG sensors for monitoring deterioration in reinforced concrete
Temperature characterisation of LPG sensors for monitoring deterioration in reinforced concrete O'FLAHERTY, Fin , GHASSEMLOOY, Zabih, MANGAT, Pal
More informationOptical Return Loss Measurement by Gregory Lietaert, Product Manager
White Paper Optical Return Loss Measurement by Gregory Lietaert, Product Manager Introduction With the increasing frequency of high-speed transmission systems and DWDM deployment, optical return loss (ORL)
More informationIntegrated optical fiber shape senor modules based on twisted multicore fiber grating arrays
Integrated optical fiber shape senor modules based on twisted multicore fiber grating arrays P. S. Westbrook, K.S. Feder, T. Kremp, T. F. Taunay, E. Monberg, J. Kelliher*, R. Ortiz, K. Bradley +, K. S.
More informationCase Study. Wind Turbine Blade Monitoring February 2008
Case Study Wind Turbine Blade Monitoring February 2008 SBlade Project Overview 2 Project Scope To assess the performance of the sensing systems throughout the life of the 9m long, conventional fiberglass,
More informationTechnology to Application
Technology to Application An Introduction to Limited Limited is an engineering consultancy specialising in the provision of bespoke sensing and measurement solutions and the integration and deployment
More informationJul07 Rev C
Product Specification 108-2167 11Jul07 Rev C MPO and MPO SECURE Multimode Fiber Optic Connector and Adapter 1. SCOPE 1.1. Content This specification, which is based on GR-1435-CORE, covers the performance,
More informationExperiment Study in Optical Fiber Temperature Monitoring
Experiment Study in Optical Fiber Temperature Monitoring HE Jun, DONG Hui-juan, YANG Kan, ZHANG Guang-yu (School of Mechatronics Engineering, Harbin Institute of Technology, Harbin150001, China) Abstract:
More informationOil and Gas Pipeline Monitoring. Oil and Gas Well Monitoring. Power Line Monitoring. Highway Safety Monitoring
Features: 219 Westbrook Rd, Ottawa, ON, Canada, K0A 1L0 Toll Free: 1-800-361-5415 Tel:(613) 831-0981 Fax:(613) 836-5089 E-mail: sales@ozoptics.com FIBER OPTIC DISTRIBUTED STRAIN AND TEMPERATURE SENSORS
More informationIMPLEMENTATION OF A NOVEL STRUCTURAL HEALTH MANAGEMENT SYSTEM FOR STEEL BRIDGES
IMPLEMENTATION OF A NOVEL STRUCTURAL HEALTH MANAGEMENT SYSTEM FOR STEEL BRIDGES Robert Mason, Michael Miller, and Lawrence Gintert Concurrent Technologies Corporation (CTC) Vincent Hock, Richard Lampo,
More informationPlanning and Operational Applications of TRANSIMS
Planning and Operational Applications of TRANSIMS Brian Wolshon, Ph.D., P.E. Louisiana State University Gulf Coast Center for Evacuation and Transportation Resiliency 2011 DOTD Congestion Management Seminar
More informationFIBER OPTIC TESTING 1
FIBER OPTIC TESTING 1 FIBER OPTIC TEST AND MEASUREMENT SOLUTIONS We provide diagnostic and test instrumentation for the telecommunications industry, enabling complete characterization of optical components,
More informationOptical Measurement Solutions. Fiber Bragg Grating Technology
Optical Measurement Solutions Fiber Bragg Grating Technology Bringing Light to Measurement Take advantage of the many new possibilities offered by optical sensors based on Fiber Bragg Grating (FBG) technology:
More informationThis document is a preview generated by EVS
INTERNATIONAL STANDARD IEC 61757-1-1 Edition 1.0 2016-02 colour inside Fibre optic sensors Part 1-1: Strain measurement Strain sensors based on fibre Bragg gratings IEC 61757-1-1:2016-02(en) THIS PUBLICATION
More informationThe Optical Time Domain Reflectometry and the Fusion Splicer Laboratory exercise
The Optical Time Domain Reflectometry and the Fusion Splicer Laboratory exercise 1 The purpose of the exercise...2 2 Background...2 2.1 Introduction to scattering and attenuation...2 2.2 Introduction to
More informationOPTICAL TIME DOMAIN REFELECTOMETER (OTDR): PRINCIPLES
OPTICAL TIME DOMAIN REFELECTOMETER (OTDR): PRINCIPLES Why Test Fiber with an OTDR? Single ended test that......characterizes fiber from end-to-end...locate and measure each event...provides a detailed
More informationDETECTION AND LOCALIZATION OF MICRO AND MULTIPHASE LEAKAGES USING DISTRIBUTED FIBER OPTIC SENSING
DETECTION AND LOCALIZATION OF MICRO AND MULTIPHASE LEAKAGES USING DISTRIBUTED FIBER OPTIC SENSING ABSTRACT Distributed fiber optic sensing offers the ability to measure temperatures and strain at thousands
More informationDetection of Solvents using a Distributed Fibre Optic Sensor
Detection of Solvents using a Distributed Fibre Optic Sensor Alistair MacLean, Chris Moran, Walter Johnstone, Brian Culshaw, Dan Marsh, Paul Parker. A fibre optic sensor that is capable of distributed
More informationHigh Spatial Resolution Distributed Fiber Optic Technique for Strain and Temperature Measurements in Concrete Structures
International Workshop on SMART MATERIALS, STRUCTURES NDT in Canada 2013Conference & NDT for the Energy Industry October 7-10, 2013 Calgary, Alberta, CANADA High Spatial Resolution Distributed Fiber Optic
More informationFiber Optics for Todays Industry Applications
Hands-On Fiber Optics for Todays Industry Applications (A Non-Telephone Company Course) Course Description This Hands-On course is designed to provide technicians with a practical understanding and Hands-On
More informationEnsuring the Health of Tomorrow s Fiber LANs Part II OTDR Trace Analysis Become an Expert Troubleshooter with Advanced OTDR Trace Analysis
Ensuring the Health of Tomorrow s Fiber LANs Part II OTDR Trace Analysis Become an Expert Troubleshooter with Advanced OTDR Trace Analysis Experience designing cable and network testers has enabled a breakthrough
More informationI-90 Mississippi River Bridge & Interchange Project
I-90 Mississippi River Bridge & Interchange Project Presentation Outline I. Background: Context & Need for Project II. Preferred Alternative Overview III. Project Development IV. Project Management Tools
More informationLong-distance remote simultaneous measurement of strain and temperature based on a Raman fiber laser with a single FBG embedded in a quartz plate
Long-distance remote simultaneous measurement of strain and temperature based on a Raman fiber laser with a single FBG embedded in a quartz plate Young-Geun Han, Thi Van Anh Tran, Ju Han Lee, and Sang
More informationOSEN - Optical Fiber Sensor Technologies
Coordinating unit: Teaching unit: Academic year: Degree: ECTS credits: 2018 230 - ETSETB - Barcelona School of Telecommunications Engineering 739 - TSC - Department of Signal Theory and Communications
More informationDistributed Sensing Over Meter Lengths Using Twisted Multicore Optical Fiber with Continuous Bragg Gratings
Special Issue R&D Group and Global Expansion Distributed Sensing Over Meter Lengths Using Twisted Multicore Optical Fiber with Continuous Bragg Gratings P. S. Westbrook *1, K.S. Feder *1, T. Kremp *1,
More informationAn FT-NIR Primer. NR800-A-006
Industry: Product: Oils and Gas NR800 Near Infra-red Spectroscopy Like other forms of spectroscopy, light from a lamp (usually called the source ) is passed through a sample and measured by a detector.
More informationDEGRADATION OF OPTICAL FillERS AT CARBON-CARBON PYROLYSIS. Rockwell International Science Center P.O. Box 1085 Thousand Oaks, CA 91358
DEGRADATION OF OPTICAL FillERS AT CARBON-CARBON PYROLYSIS TEMPERATURES Jeffrey S. Schoenwald Rockwell International Science Center P.O. Box 1085 Thousand Oaks, CA 91358 INTRODUCTION The value of having
More informationFibre Optic Sensors: basic principles and most common applications
SMR 1829-20 Winter College on Fibre Optics, Fibre Lasers and Sensors 12-23 February 2007 Fibre Optic Sensors: basic principles and most common applications (PART 1) Hypolito José Kalinowski Federal University
More informationThe maturing of optical sensing technology for commercial applications
The maturing of optical sensing technology for commercial applications A. Csipkes, S. Ferguson, T.W. Graver, T. C. Haber, A. Méndez, J. W. Miller Micron Optics Inc., 1852 Century Place, Atlanta, Georgia
More informationAV6419 BOTDR. Product Overview. Main Features
AV6419 BOTDR Product Overview AV6419 BOTDR can simultaneously measure strain distribution, loss distribution and Brillouin scattering spectrum at different location of optical fiber, and can display 3D
More informationCarlos Borda Omnisens S.A. Subsea Asia Conference June 2014
Carlos Borda Omnisens S.A. Subsea Asia Conference June 2014 Agenda Who is Omnisens? Distributed Fiber Optic Monitoring Power Umbilicals Flow Assurance (Heated Flowlines) Direct Electrical Heating (DEH)
More informationDistributed sensing based on reflections and Rayleigh backscatter. Brian Culshaw University of Strathclyde Glasgow Scotland
SMR 1829-27 Winter College on Fibre Optics, Fibre Lasers and Sensors 12-23 February 2007 Distributed sensing based on reflections and Rayleigh backscatter Brian Culshaw University of Strathclyde Glasgow
More informationSOLUTION MINING RESEARCH INSTITUTE
SOLUTION MINING RESEARCH INSTITUTE 105 Apple Valley Circle Clarks Summit, PA 18411, USA Technical Conference Paper Telephone: +1 570-585-8092 Fax: +1 570-585-8091 www.solutionmining.org Permanent Blanket-Brine
More informationOmnisens DITEST TM FIBER OPTIC DISTRIBUTED TEMPERATURE & STRAIN SENSING TECHNIQUE
1 Omnisens DITEST TM FIBER OPTIC DISTRIBUTED TEMPERATURE & STRAIN SENSING TECHNIQUE Introduction Omnisens DITEST (Distributed Temperature and Strain sensing) is a distributed temperature and/or strain
More informationSmart design for temperature-strain measurement using distributed fiber-optic embedded in laminated composites
Smart design for temperature-strain measurement using distributed fiber-optic embedded in laminated composites More info about this article: http://www.ndt.net/?id=00 Pingyu ZHU 1, Xiaopeng SUN 1, Xiaobo
More informationCase Study Canton Tower at Guangzhou. Guangzhou, China 2010
Case Study Canton Tower at Guangzhou Guangzhou, China 2010 Canton Tower Background 2 Worlds tallest broadcasting tower at 610 meters Unique design Integrated Structural Health Monitoring Optical and Electrical
More informationProduct Specification EMI Shielded Duplex LC Sealed Receptacle (ODVA Conforming)
Product Specification EMI Shielded Duplex LC Sealed Receptacle (ODVA Conforming) 02Oct08 Rev A 1. SCOPE 1.1. Content This specification, based on IEC 61753-1 Edition 1.0 tests for Category E (Extreme Environment),
More informationUse of fiber optic technology for relative humidity monitoring in RPC detectors
Use of fiber optic technology for relative humidity monitoring in RPC detectors 1 Centro Ricerche ENEA Frascati via E. Fermi 45, 00044 Frascati, Rome, Italy E-mail: michele.caponero@enea.it and Istituto
More informationLAB REPORT SUBMISSION COVER PAGE ETN4106 OPTOELECTRONICS AND OPTICAL COMMUNICATIONS
1/10 FACULTY OF ENGINEERING LAB REPORT SUBMISSION COVER PAGE ETN4106 OPTOELECTRONICS AND OPTICAL COMMUNICATIONS TRIMESTER 3, SESSION 2016/2017 Student Name: Student ID: Degree Major (please circle): EE
More informationContents Fibre Laser (and Sensor) Technologies
Contents Fibre Laser (and Sensor) Technologies Lorinda Wu CSIR National Laser Centre NLC: Novel Laser Sources Group Conducts R&D into novel laser sources, with a focus on mid-ir. Developed a number of
More informationFACULTY OF ENGINEERING LAB SHEET OPTICAL COMMUNICATION SYSTEMS EOP4066 TRIMESTER 1 (2013/2014)
FACULTY OF ENGINEERING LAB SHEET OPTICAL COMMUNICATION SYSTEMS EOP4066 TRIMESTER 1 (2013/2014) OC1 FIBER LINK CHARACTERIZATION WITH OTDR *Note: On-the-spot evaluation may be carried out during or at the
More informationApplication and Use of Distributed Temperature Sensing (DTS) Technology in Transmission Cables
Application and Use of Distributed Temperature Sensing (DTS) Technology in Transmission Cables Dr. Sudhakar Cherukupalli Principal Engineer, Team Lead, Transmission Cables Transmission Engineering, BC
More informationPrinciple and Application of Fiber Optic Scattering Sensors Il-Bum Kwon
Principle and Application of Fiber Optic Scattering Sensors 2018 Il-Bum Kwon Center for Safety Measurements Korea Research Institute of Standards and Science Contents 1 I. Introduction II. Phi-OTDR III.
More informationSpecial Provision No. 683S28 December 2017
FIBRE OPTIC COMMUNICATION CABLES, AERIAL ON MESSENGER CABLE - Item No. FIBRE OPTIC COMMUNICATION CABLES, AERIAL ON MESSENGER CABLE (TEMPORARY) - Item No. Special Provision No. 683S28 December 2017 1. SCOPE
More informationHands-On Fiber Optics ISP/OSP - Advanced Combo- Tech
Hands-On Fiber Optics ISP/OSP - Advanced Combo- Tech Course Description This Hands-On 3-day course has been customized to provide technicians with a practical understanding of fiber optic theory and fiber
More information2016 CDM Smith All Rights Reserved July 2016 SECTION FIBER OPTIC DATA NETWORK
PART 1 GENERAL 1.01 SCOPE OF WORK SECTION 27 12 23 FIBER OPTIC DATA NETWORK A. Furnish, install, terminate, and test all fiber optic equipment and cabling necessary for a complete and functional data highway
More informationSensing Technology. A company of the BRUGG Group
Sensing Technology. Applications. 2 Basic_Sensing_e.ppt / ad Laser. LASER λ 0 [nm] Intensity λ [nm] λ 0 3 Basic_Sensing_e.ppt / ad Rayleigh, Brillouin, Raman Scattering. LASER λ 0 [nm] Rayleigh Intensity
More informationBased Fiber Optic Sensors
Sensing with Light Intensity-Based Intensity Based Fiber Optic Sensors Sensing with Fibers Fiber optic sensors are based on monitoring the change of optical signals propagating along the sensitive area.
More informationIn-line Oil in Water Analyser - Model OIW-EX100P and OIW-EX1000P
brochure In-line Oil in Water Analyser - Model OIW-EX100P and OIW-EX1000P Advanced Sensors Ltd Oil in Water Analyser System known as the OIW-EX100P or OIW-EX 1000P. The system is designed to monitor the
More informationAnalysis of Pullout Resistance of Soil-Nailing in Lateritic Soil
Analysis of Pullout Resistance of Soil-Nailing in Lateritic Soil B,L.A. Isaka 1, B.C. Madushanka 1 and N.H. Priyankara 1 1 Department of Civil and Environmental Engineering Faculty of Engineering University
More informationDynamic Performance of the Guarda Footbridge
Dynamic Performance of the Guarda Footbridge Carlos Rebelo PhD, Assistant Professor, crebelo@dec.uc.pt Hugo Pimenta MSc student, hugo.pimenta@netvisao.pt Luís Simões da Silva Full Professor, lssilva@dec.uc.pt
More informationSoil-embedded distributed fiber-optic sensors for monitoring pipelines, dams, embankments, railways and roads endangered by soil movements
GeoScan Soil-embedded distributed fiber-optic sensors for monitoring pipelines, dams, embankments, railways and roads endangered by s Technical Documentation & Application Examples Content System, solutions
More informationBuilding and Characterizing 14GHz InGaAs Fiber Coupled Photodiodes
Building and Characterizing 14GHz InGaAs Fiber Coupled Photodiodes Gabrielle Inglis Advisor: Robert Boni Laboratory for Laser Energetics University of Rochester Summer High School Research Program 200
More informationCertified Fibre Optic Specialist - Testing
Certified Fibre Optic Specialist - Testing COURSE DESCRIPTION: This training program is designed to introduce the student to the process of fibre optic network testing. It is intended for those looking
More informationPerformance of a Distributed Simultaneous Strain and Temperature Sensor Based on a Fabry-Perot Laser Diode and a Dual-Stage FBG Optical Demultiplexer
Sensors 2013, 13, 15452-15464; doi:10.3390/s131115452 Article OPEN ACCESS sensors ISSN 1424-8220 www.mdpi.com/journal/sensors Performance of a Distributed Simultaneous Strain and Temperature Sensor Based
More informationOptical Fiber Sensing Technology: Basics, Classifications and Applications
American Journal of Remote Sensing 2018; 6(1): 1-5 http://www.sciencepublishinggroup.com/j/ajrs doi: 10.11648/j.ajrs.20180601.11 ISSN: 2328-5788 (Print); ISSN: 2328-580X (Online) Review Article Optical
More informationCasing Pipe Damage Detection with Optical Fiber Sensors: A Case Study in Oil Well Constructions
Missouri University of Science and Technology Scholars' Mine Civil, Architectural and Environmental Engineering Faculty Research & Creative Works Civil, Architectural and Environmental Engineering 21 Casing
More informationField Test Procedure for Optical Fibre Link Measurements
Application Notes Field Test Procedure for Optical Fibre Link Measurements Issued April 2014 Abstract After fiber optic cables are installed, spliced and terminated, they must be tested. For every fiber
More informationNew Concepts and Applications for geodetical Monitoring with Fibreoptic Sensing (FOS)
New Concepts and Applications for geodetical Monitoring with Fibreoptic Sensing (FOS) H. Döller, G. Neunteufel Dr. Döller Vermessung ZT GmbH, Raiffeisenpromenade 2/1/8, A-3830 Waidhofen/Thaya NBG Fosa
More informationDistributed Condition Monitoring of Power Cables a Brief Update
Distributed Condition Monitoring of Power Cables a Brief Update HENRIK HOFF, AP SENSING GMBH ABSTRACT Distributed temperature sensing (DTS) is an established and widely accepted method to monitor the condition
More informationFiber optic distributed pressure sensor for structural monitoring applications
Fiber optic distributed pressure sensor for structural monitoring applications S. Binu *a, V.P. Mahadevan Pillai a, N. Chandrasekaran b a Department of Optoelectronics, University of Kerala, Thiruvananthapuram-695581,
More informationCase Study - Buildings. Structural Health Monitoring of Critical Public Buildings in Municipality of Hellinikon Hellinikon, Athens, Greece 2008
Case Study - Buildings Structural Health Monitoring of Critical Public Buildings in Municipality of Hellinikon Hellinikon, Athens, Greece 2008 Structural Health Monitoring of Critical Public Bldgs. in
More informationDISTRIBUTION STATEMENT
NSRP National Shipbuilding Research Program Distributed Temperature Sensing for Inspection of Electrical Panels on Navy Ships Jeff Callen Penn State Electro-Optics Center March 7-9, 2017 Charleston, SC
More informationFiber Optic and CAT 5, 6, 7 and 8 Installer Premise Cabling
Hands-On Fiber Optic and CAT 5, 6, 7 and 8 Installer Premise Cabling Certification Course Description This Hands-On course is customized to give Technicians the confidence and skills to maintain Fiber
More informationCM97-xxx-7x. Cooled 980nm Pump Laser Module. Product Datasheet. Features. Applications
Cooled 980nm Pump Laser Module Features High output power, >1.0W kink free Fiber Bragg grating stabilization for wavelength locking over the entire operating conditions Hermetically sealed 10pin mini-butterfly
More informationOptical Fiber Sensors for Permanent Downwell Monitoring Applications in the Oil and Gas Industry
400 INVITED PAPER Special Issue on Optical Fiber Sensors Optical Fiber Sensors for Permanent Downwell Monitoring Applications in the Oil and Gas Industry Alan D. KERSEY a), Nonmember SUMMARY This paper
More informationFibre Optic Connector and Component Standards Developments & Key Issues in IEC & CENELEC. Philip C Longhurst Corporate Fibre Optic R & D Manager
Fibre Optic Connector and Component Standards Developments & Key Issues in IEC & CENELEC Philip C Longhurst Corporate Fibre Optic R & D Manager Outline CENELEC TC86BXA work programme IEC SC86B WG 6 and
More informationWHAT IS LASER ULTRASONIC TESTING?
WHAT IS LASER ULTRASONIC TESTING? Laser ultrasonic testing (LUT) is a remote, noncontact extension of conventional, contact or near-contact ultrasonic testing (UT). A schematic layout of a laser ultrasonic
More informationLink loss measurement uncertainties: OTDR vs. light source power meter By EXFO s Systems Engineering and Research Team
Link loss measurement uncertainties: OTDR vs. light source power meter By EXFO s Systems Engineering and Research Team INTRODUCTION The OTDR is a very efficient tool for characterizing the elements on
More informationFli'l HEWLETT. Measurement of Raylelgh Backscattering at 1.55 urn with a 32 um Spatial Resolution
Fli'l HEWLETT a:~ PACKARD Measurement of Raylelgh Backscattering at 1.55 urn with a 32 um Spatial Resolution W. V. Sorin, D. M. Baney Instruments and Photonics Laboratory HPL-91-180 December, 1991 Rayleigh
More informationWorld Academy of Science, Engineering and Technology International Journal of Electronics and Communication Engineering Vol:2, No:6, 2008
Fiber Optic Sensors Bahareh Gholamzadeh, and Hooman Nabovati Abstract Fiber optic sensor technology offers the possibility of sensing different parameters like strain, temperature, pressure in harsh environment
More informationFibre Optic Basics FIA Summer Seminar 2014
Fibre Optic Basics FIA Summer Seminar 2014 Andrew Cole Theory Basics Characteristics of Light What is Light? An electromagnetic wave, which like other waves, has a frequency (f), velocity (v) and a wavelength
More informationFTTH NETWORK TESTING: REAL APPLICATIONS USING THE OLTS METHOD
FTTH NETWORK TESTING: REAL APPLICATIONS USING THE OLTS METHOD 157 APPLICATION NOTE Mario Simard, Product Manager, Optical Business Unit The purpose of any fiber-optic network is to perform high-speed,
More informationRoles, Responsibilities, and Plans for Transportation Systems in Mass Evacuations
Roles, Responsibilities, and Plans for Transportation Systems in Mass Evacuations Brian Wolshon, Ph.D., P.E. Dept. of Civil and Env.. Engineering Gulf Coast Research Center for Evacuation and Transportation
More informationOPTICAL TIME-DOMAIN REFLECTOMETER
Tallinn University of Technology Laboratory exercise 1 of Fiber Optical Communication course OPTICAL TIME-DOMAIN REFLECTOMETER Tallinn 2016 Aim of the laboratory exercise: The aim of this laboratory exercise
More informationOptical fiber Bragg grating based intrusion detection systems for homeland security
Edith Cowan University Research Online ECU Publications 2013 2013 Optical fiber Bragg grating based intrusion detection systems for homeland security Gary Allwood Edith Cowan University Steven Hinckley
More informationTatsuya Yamaguchi, Hiroshi Ohno, Yu Matsumoto, Taiyo Matsumura, Yukitaka Shinoda, Takashi Ono Nihon University, Tokyo, Japan
Basic Study on Position Estimation of Fire Source using Fiber Bragg Gratings Tatsuya Yamaguchi, Hiroshi Ohno, Yu Matsumoto, Taiyo Matsumura, Yukitaka Shinoda, Takashi Ono Nihon University, Tokyo, Japan
More informationWe are IntechOpen, the world s leading publisher of Open Access books Built by scientists, for scientists. International authors and editors
We are IntechOpen, the world s leading publisher of Open Access books Built by scientists, for scientists 3,900 116,000 120M Open access books available International authors and editors Downloads Our
More informationVTI Services Technical Bulletin (TB) OTDR Measurement of Installed Optical Fibre Cabling Permanent Links and Links
VTI Services Technical Bulletin (TB) OTDR Measurement of Installed Optical Fibre Cabling Permanent Links and Links TB Number 004 This bulletin is supplied for information only and is intended to provide
More informationBenefits of Enhanced Event Analysis in. Mark Miller
Benefits of Enhanced Event Analysis in Data Center OTDR Testing Mark Miller Dr. Fang Xu AFL/Noyes Test & Inspection Overview Challenges Topics Techniques and Improvements Benefits of enhanced event analysis
More information