Development of Temperature-compensated Fiber Optic Strain Sensors Based on Fiber Bragg Gratings PDF Download

Author: Neil J. Guillermo
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
The development of temperature compensated fiber optic strain sensors based on fiber Bragg gratings is reported. The various sensors manufactured and tested include a stainless steel capillary tube-encased Bragg grating, a partially-bonded Bragg grating, and a fully embedded Bragg grating. Strain and temperature resolution is accomplished by measuring the characteristic Bragg wavelength shift of each Bragg grating sensor relative to its initial wavelength. Another measurement technique used involves calculating the differential strain measurement between two dissimilar resistive strain gauges to determine strain and temperature. Testing is done using both a self-made convection and industrial oven to regulate the temperature, as well as applying strain to the specimen via bending or tension. The performance of the sensors in tracking the strain and temperature in variable strain and variable temperature environments is reported and evaluated. The development of an in-lab convection oven and a stress machine specifically designed for this thesis is also described. Suggestions are made for improvements to the sensors in addition to further developmental research and possible practical temperature compensated fiber optic strain sensor applications.

Author: Neil J. Guillermo
Publisher: National Library of Canada = Bibliothèque nationale du Canada
ISBN: 9780612455740
Category :
Languages : en
Pages : 77

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description

Author: Hisham K. Hisham
Publisher: CRC Press
ISBN: 1000021726
Category : Technology & Engineering
Languages : en
Pages : 117

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Book Description
This book presents the basic principles of optical sensor technology in line with the tremendous development in the concept of optical fibers. In the first four chapters, the book discusses the basic principles of optical sensor technology in a simplified manner, making it suitable for all levels of study and research. The seven remaining chapters are concerned with the practical applications of optical sensor technology in all fields such as oil and gas, civil engineering, medical and military fields and harsh environments.

Author: Luc Thevenaz
Publisher: Wiley
ISBN: 9781118331507
Category : Technology & Engineering
Languages : en
Pages : 250

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Book Description
Serving as a unique, efficient solution to modern demands for security and safety sensing, distributed optical fiber sensing are critical components in areas such as natural disaster prevention and civil engineering. The unique book provides detailed explanations on how to install early warning systems for the prevention of natural disasters, flaws in civil engineering structures (dams, bridges, tunnels), and issues in the oil industry (pipeline leakage detection, off-shore platform anchoring.) Addressing the principles and specificities of distributed fiber sensing, this resource shows different possible implementations, their potential, and their limitations.

Author: L.S. Grattan
Publisher: Springer Science & Business Media
ISBN: 9780412782909
Category : Technology & Engineering
Languages : en
Pages : 464

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Book Description
Progress in optical fiber sensors The field of optical fiber sensor technology is one that continues to expand and develop at a rate that could barely have been predicted a few years ago. The wealth of publications appearing in the technical literature and the burgeoning number of papers presented at the now well-established series of national and international conferences, which are attended by a wide selection of technically qualified optoelectronics professionals, gives a clear indication of both the range and scale of the devices and applications now seen in the subject. Such a rapid expansion makes it very difficult for the scientist and engineer, under pressure to be both informed and effective for an employer, to attend all these meetings, selectively read the appropriate literature and be able quickly to gain the knowledge in those specific areas which will give the best advantage for the work in hand. To that end, this volume has been planned and carefully designed to provide an essential overview, and detailed specific information, on those novel and exciting aspects of optical fiber sensor technology that have recently emerged, with particular focus on the devices and the exciting applications of this part of optoelectronic technology in the vast international measurement and instrumentation area.

Author: Subhas Chandra Mukhopadhyay
Publisher: Springer Science & Business Media
ISBN: 3642210996
Category : Technology & Engineering
Languages : en
Pages : 425

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Book Description
The book has focussed on the different aspects of sensing technology, i.e. high reliability, adaptability, recalibration, information processing, data fusion, validation and integration of novel and high performance sensors specifically aims to use to inspect mechanical health of structure and similar applications. This book is dedicated to Sensing systems for Structural Health Monitoring offers to variety of users, namely, Master and PhD degree students, researchers, practitioners, especially Civil and Construction engineers. The book will provide an opportunity of a dedicated and a deep approach in order to improve their knowledge in this specific field.

Author: Oleg Morozov
Publisher: MDPI
ISBN: 3036512861
Category : Technology & Engineering
Languages : en
Pages : 228

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Book Description
This book is a collection of papers that originated as a Special Issue, focused on some recent advances related to fiber Bragg grating-based sensors and systems. Conventionally, this book can be divided into three parts: intelligent systems, new types of sensors, and original interrogators. The intelligent systems presented include evaluation of strain transition properties between cast-in FBGs and cast aluminum during uniaxial straining, multi-point strain measurements on a containment vessel, damage detection methods based on long-gauge FBG for highway bridges, evaluation of a coupled sequential approach for rotorcraft landing simulation, wearable hand modules and real-time tracking algorithms for measuring finger joint angles of different hand sizes, and glaze icing detection of 110 kV composite insulators. New types of sensors are reflected in multi-addressed fiber Bragg structures for microwave–photonic sensor systems, its applications in load-sensing wheel hub bearings, and more complex influence in problems of generation of vortex optical beams based on chiral fiber-optic periodic structures. Original interrogators include research in optical designs with curved detectors for FBG interrogation monitors; demonstration of a filterless, multi-point, and temperature-independent FBG dynamical demodulator using pulse-width modulation; and dual wavelength differential detection of FBG sensors with a pulsed DFB laser.

Author: Christian Cuadrado-Laborde
Publisher: BoD – Books on Demand
ISBN: 9535111310
Category : Technology & Engineering
Languages : en
Pages : 198

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Book Description
In this book the reader will find a collection of chapters written by different experts around the world, describing the current research trends in both short- and long-period fiber grating technology. This work is mainly addressed to researchers already working in this area, but it is also accessible to anyone with a scientific background who desires to have an updated overview of the recent progress in this domain. It will also be valuable to scientist and engineers who have become newly involved in this field. Each chapter is self-contained and can be read independently of the others. This book intends to provide highlights of the current research in this area, showing the recent advances in the field of fiber gratings.

Author: Vistasp M. Karbhari
Publisher: Elsevier
ISBN: 1845696824
Category : Technology & Engineering
Languages : en
Pages : 553

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Book Description
Structural health monitoring is an extremely important methodology in evaluating the 'health' of a structure by assessing the level of deterioration and remaining service life of civil infrastructure systems. This book reviews key developments in research, technologies and applications in this area of civil engineering. It discusses ways of obtaining and analysing data, sensor technologies and methods of sensing changes in structural performance characteristics. It also discusses data transmission and the application of both individual technologies and entire systems to bridges and buildings.With its distinguished editors and international team of contributors, Structural health monitoring of civil infrastructure systems is a valuable reference for students in civil and structural engineering programs as well as those studying sensors, data analysis and transmission at universities. It will also be an important source for practicing civil engineers and designers, engineers and researchers developing sensors, network systems and methods of data transmission and analysis, policy makers, inspectors and those responsible for the safety and service life of civil infrastructure. - Reviews key developments in research, technologies and applications - Discusses systems used to obtain and analyse data and sensor technologies - Assesses methods of sensing changes in structural performance