Strain and Temperature Measurement with Fiber Optic Sensors

Strain and Temperature Measurement with Fiber Optic Sensors PDF Author: Regis J. Van Steenkiste
Publisher: CRC Press
ISBN: 9781566764803
Category : Technology & Engineering
Languages : en
Pages : 336

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Book Description
FROM THE AUTHORS' PREFACE Sensors operating on interferometric principles and mounted inside optical fibers have recently been considered for measuring strain and temperature. Indeed, such sensors have successfully been employed for measuring pressure or temperature in fluids. Fiber optics sensors are especially adept for such measurements because sensors immersed in fluids can easily be calibrated by tests. Unfortunately, the use of fiber optic sensors inside solids is not as straightforward. Owing to the complex interactions between the sensor and the surrounding material, the relationship between the sensor output and the parameters of interest, namely the strain and temperature inside the material, cannot be determined by simple tests. And without the appropriate relationships, fiber optic sensors do not provide meaningful information. In general, the relationship providing the bridge between the sensor output and the engineering values of strain and temperature must be established via analytical models. The major aim of this book is to present such models for extrinsic and intrinsic Fabry-Perot sensors and for Bragg grating sensors embedded in or mounted on the surface of isotropic or anisotropic solids or immersed in fluids. The scope of the book is limited to the theory of fiber optic strain and temperature sensors. Accordingly, we have taken as our starting point the demodulated sensor signals. The hardware needed to produce these signals is not discussed. It is presumed that the reader is familiar with and has access to the sensor, light source, light detector and demodulator required for generating signals which can then be analyzed and interpreted by the methods presented in the book. The problem necessitates complex analytical developments. To assist the reader, the significant results are summarized in tables, and numerical examples are given illustrating the calculation procedures.

Strain and Temperature Measurement with Fiber Optic Sensors

Strain and Temperature Measurement with Fiber Optic Sensors PDF Author: Regis J. Van Steenkiste
Publisher: CRC Press
ISBN: 9781566764803
Category : Technology & Engineering
Languages : en
Pages : 336

Get Book Here

Book Description
FROM THE AUTHORS' PREFACE Sensors operating on interferometric principles and mounted inside optical fibers have recently been considered for measuring strain and temperature. Indeed, such sensors have successfully been employed for measuring pressure or temperature in fluids. Fiber optics sensors are especially adept for such measurements because sensors immersed in fluids can easily be calibrated by tests. Unfortunately, the use of fiber optic sensors inside solids is not as straightforward. Owing to the complex interactions between the sensor and the surrounding material, the relationship between the sensor output and the parameters of interest, namely the strain and temperature inside the material, cannot be determined by simple tests. And without the appropriate relationships, fiber optic sensors do not provide meaningful information. In general, the relationship providing the bridge between the sensor output and the engineering values of strain and temperature must be established via analytical models. The major aim of this book is to present such models for extrinsic and intrinsic Fabry-Perot sensors and for Bragg grating sensors embedded in or mounted on the surface of isotropic or anisotropic solids or immersed in fluids. The scope of the book is limited to the theory of fiber optic strain and temperature sensors. Accordingly, we have taken as our starting point the demodulated sensor signals. The hardware needed to produce these signals is not discussed. It is presumed that the reader is familiar with and has access to the sensor, light source, light detector and demodulator required for generating signals which can then be analyzed and interpreted by the methods presented in the book. The problem necessitates complex analytical developments. To assist the reader, the significant results are summarized in tables, and numerical examples are given illustrating the calculation procedures.

Distributed Optical Fiber Sensing

Distributed Optical Fiber Sensing PDF 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.

Optical Fiber Sensors: Applications, analysis, and future trends

Optical Fiber Sensors: Applications, analysis, and future trends PDF Author: John Dakin
Publisher: Artech House Publishers
ISBN: 9780890069400
Category : Science
Languages : en
Pages : 478

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Book Description
The fourth volume in a series, this work details coverage of recent developments in the field of optical fibre sensors. It describes the impact which fibre sensors are having in such areas as chemical and environmental monitoring, structural instrumentation and smart structure, process control and engineering, and specialist industrial measurements.

Expanding the Vision of Sensor Materials

Expanding the Vision of Sensor Materials PDF Author: Committee on New Sensor Technologies: Materials and Applications
Publisher: National Academies Press
ISBN: 0309587433
Category : Technology & Engineering
Languages : en
Pages : 146

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Book Description
Advances in materials science and engineering have paved the way for the development of new and more capable sensors. Drawing upon case studies from manufacturing and structural monitoring and involving chemical and long wave-length infrared sensors, this book suggests an approach that frames the relevant technical issues in such a way as to expedite the consideration of new and novel sensor materials. It enables a multidisciplinary approach for identifying opportunities and making realistic assessments of technical risk and could be used to guide relevant research and development in sensor technologies.

Intrinsic Fiber-optic Sensors for Distributed Measurement of Temperature, Strain and Pressure

Intrinsic Fiber-optic Sensors for Distributed Measurement of Temperature, Strain and Pressure PDF Author: Robert J. Maron
Publisher:
ISBN:
Category : Optical fiber detectors
Languages : en
Pages : 102

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Book Description


Fiber Optic Sensors and Systems

Fiber Optic Sensors and Systems PDF Author:
Publisher: Information Gatekeepers Inc
ISBN:
Category :
Languages : en
Pages : 38

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Book Description


Structural Monitoring with Fiber Optic Technology

Structural Monitoring with Fiber Optic Technology PDF Author: Raymond M. Measures
Publisher: Elsevier
ISBN: 0080518044
Category : Science
Languages : en
Pages : 736

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Book Description
This book is the first to address the field of structurally integrated fiber optic sensors. Fiber optic sensors embedded within materials and systems are able to measure a variety of parameters (i.e. temperature, vibration, deformation, strain, etc.) that allows for real time non-destructive evaluation. Examples include the following: monitoring structural fatigue in aging aircraft or loads in bridge structures. In more advanced applications, fiber optic sensors control actuators that allow materials to adapt to their environment. This gives rise to the names, "smart," "intelligent," and/or "adaptive" materials or structures.Structural Monitoring with Fiber Optic Technology is the firs single author book on the new field of fiber optic structural sensing. As such it provides: coverage of the fundamentals of the technology, a coherent and systematic discussion on the most important aspects of the subject, a broad view of the subject, while retaining a degree of focus on those advances most significant in terms of their future potential, particularly in regard to broad implementation of the technology. The book provides an introduction to the relevant value to structural monitoring. It also highlights the advantages of fiber optic based sensors over conventional electrical measurement technology.The book richly illustrates the subject matter with 615 figures and provides many examples of fiber optic structural sensing, including a detailed overview of a number of major field site applications. Most of these large scale applications are drawn from the civil engineering community as they have been the first to strongly embrace fiber optic structural monitoring. This is especially true for bridges, where innovative new designs and the use of fiber reinforced polymer composite materials to replace steel represents a major advance that is expected to revolutionize the construction industry. Examples include new bridges, which are serving as testbeds for these new materials and are instrumented with arrays of fiber optic structural sensors. In one case, this state-of-the-art monitoring system permits engineers at a distant site to track the response of the bridge to traffic loads and keep an eye on the long term performance of the new materials. Fiber optic structural sensing technology is equally applicable to other industrial sectors, such as the aerospace and marine industries. Indeed, several examples of ships being instrumented with arrays of fiber optic sensors are also included.* The author directed one of the leading laboratories in the development of this technology and its application to civil engineering* Provides a strong, concise foundation in the basics of the technology* Includes many examples of the application of the technology, including many major field site case studies* Richly illustrated with 615 figures, many redrawn to make them easier to understand; also includes over 600 references* Written in a style designed to help the reader unfamiliar with fiber optic technology appreciate what can be accomplished with this new form of structural monitoring

Development of a Fiber Optic High Temperature Strain Sensor

Development of a Fiber Optic High Temperature Strain Sensor PDF Author: National Aeronautics and Space Adm Nasa
Publisher:
ISBN: 9781730992179
Category :
Languages : en
Pages : 106

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Book Description
From 1 Apr. 1991 to 31 Aug. 1992, the Georgia Tech Research Institute conducted a research program to develop a high temperature fiber optic strain sensor as part of a measurement program for the space shuttle booster rocket motor. The major objectives of this program were divided into four tasks. Under Task 1, the literature on high-temperature fiber optic strain sensors was reviewed. Task 2 addressed the design and fabrication of the strain sensor. Tests and calibration were conducted under Task 3, and Task 4 was to generate recommendations for a follow-on study of a distributed strain sensor. Task 4 was submitted to NASA as a separate proposal. Rausch, E. O. and Murphy, K. E. and Brookshire, S. P. Unspecified Center FIBER OPTICS; HIGH TEMPERATURE RESEARCH; HIGH TEMPERATURE TESTS; OPTICAL FIBERS; SENSORS; STRAIN GAGES; STRAIN MEASUREMENT; CALIBRATING; FABRICATION; HIGH TEMPERATURE; SILICON DIOXIDE...

Structural Health Monitoring of Civil Infrastructure Systems

Structural Health Monitoring of Civil Infrastructure Systems PDF 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

Fiber Optic Sensors

Fiber Optic Sensors PDF Author: Eric Udd
Publisher: John Wiley & Sons
ISBN: 1119678781
Category : Science
Languages : en
Pages : 628

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Book Description
FIBER OPTIC SENSORS Discover the latest in fiber optic sensors and their applications in this new edition Fiber-optic sensors are a powerful class of sensor that uses high-bandwidth optical fibers to convey a large amount of measured information through a single fiber. The advantages of such a mode of measurement are clear: they are intrinsically safe in explosive environments (no sparks), lightweight, compact, robust, and potentially inexpensive. As a result, their uses are manifold for a wide range of physical and chemical phenomena including temperature, strain, pressure, acoustic fields, position, velocity, rotation, acceleration, electrical current, liquid level, biochemical composition, and chemical concentration. Fiber Optic Sensors introduces and familiarizes the reader with a broad range of fiber optic sensor techniques and applications. The latest edition of this popular text builds upon the sound introductions to the fundamentals of the topic provided by earlier editions by introducing the latest technologies that have been developed in recent years. Gathering the latest research and publications on the subject in one place, the book provides a comprehensive look at fiber optic sensors with an eye to what’s new in the field. Readers of Fiber Optic Sensors’ third edition will also find: An exploration of the technology within new applications in areas such as aerospace, defense, oil and gas, medical, electric power, manufacturing, environmental, and robotics Updated chapters on the emergency of interferometric sensors, distributed sensing, and critical components A new and fully-updated comprehensive index Fiber Optic Sensors is a useful reference for engineers, scientists, technical managers, as well as advanced undergraduate and graduate students.