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Book Description

Opto-mechanical Fiber Optic Sensors: Research, Technology, and Applications in Mechanical Sensing offers comprehensive coverage of the theoretical aspects of fiber optic sensors (FOS), along with current and emerging applications in the mechanical, petroleum, biomedical, biomechanical, aerospace and automotive industries. Special attention is given to FOS applications in harsh environments. Due to recent technology advances, optical fibers have found uses in many industrial applications. Various sectors are major targets for FOS's capable of measuring mechanical parameters, such as pressure, stress, strain and temperature. Opto-mechanical FOS's offer unique advantages, including immunity to electromagnetic interference, high fidelity and signal-to-noise ratio, low-loss remote sensing and small size.

  • Provides current background information and fundamentals on fiber optic sensors technology
  • Covers a wide variety of established and emerging applications of FOS
  • Focuses on mechanical parameter measurement
  • Includes contributions from leading researchers and practitioners in their fields
  • Covers current methods of fabrication and packaging

Table of Contents

  1. Cover image
  2. Title page
  3. Table of Contents
  4. Copyright
  5. List of Contributors
  6. Biography
  7. Preface
  8. 1. Opto-Mechanical Modeling of Fiber Bragg Grating Sensors
    1. 1.1. Fiber Bragg Gratings
    2. 1.2. Opto-Mechanical Properties of Optical Fibers
    3. 1.3. Fiber Bragg Gratings With Structurally and Thermally Induced Index Changes
    4. 1.4. Light Propagation in Optical Fibers With Induced Optical Anisotropy
    5. 1.5. Coupled-Mode Theory
    6. 1.6. Derivation of Coupled-Mode Theory for Fiber Bragg Gratings With Uniform Grating
    7. 1.7. Coupled-Mode Theory for Superstructure Fiber Bragg Gratings
    8. Appendices
  9. 2. Superstructure Fiber Bragg Grating Sensors for Multiparameter Sensing
    1. 2.1. Superstructure Fiber Bragg Gratings With Periodic On-Fiber Films
    2. 2.2. Opto-Mechanical Modeling
    3. 2.3. Simulation Results
    4. 2.4. Geometrical Features of Fabricated Superstructure Fiber Bragg Gratings With On-Fiber Films
    5. 2.5. Measurement Test Rig
    6. 2.6. Optical Response Analysis
  10. 3. Flat-Cladding Fiber Bragg Grating Sensors for Large Strain Amplitude Fatigue Tests
    1. 3.1. Introduction
    2. 3.2. Experiments
    3. 3.3. Sensor Validation Results
    4. 3.4. Application in the Fatigue Test of a Friction Stir–Welded Aluminum Alloy
    5. 3.5. Application in Asymmetric Fatigue Deformation of a Magnesium Alloy
    6. 3.6. Conclusions
  11. 4. Fiber Bragg Grating Strain Sensor for Microstructure in Situ Strain Measurement and Real-Time Failure Detection
    1. 4.1. Introduction
    2. 4.2. Fiber Bragg Grating Basics and Sensor Fabrication
    3. 4.3. Comparison of Cantilever Strain Measured by a Fiber Bragg Grating Sensor and a Strain Gauge
    4. 4.4. Printed Circuit Board Assembly Test Sample Preparation for Bend Testing
    5. 4.5. Strain Gauge A and Fiber Bragg Grating Sensor Installation on Assembly Packages
    6. 4.6. Comparison of Ball Grid Array Substrate Strain Results by Fiber Bragg Grating Sensor Array and Finite Element Analysis Modeling
    7. 4.7. Four-Point Bending System and Test Setup
    8. 4.8. Dye-and-Pry Failure Visual Inspection
    9. 4.9. Test Results and Discussion
    10. 4.10. Conclusions
  12. 5. Distributed Brillouin Sensing Using Polymer Optical Fibers
    1. 5.1. Introduction
    2. 5.2. Characterization of Brillouin Scattering in Polymer Optical Fibers
    3. 5.3. Distributed Measurement
    4. 5.4. Polymer Optical Fiber Fuse
    5. 5.5. Conclusion
  13. 6. Femtosecond Laser-Inscribed Fiber Bragg Gratings for Sensing Applications
    1. 6.1. Introduction
    2. 6.2. The Fiber Bragg Grating
    3. 6.3. The Fiber Bragg Grating Sensor
    4. 6.4. Femtosecond Laser-Induced Bragg Gratings
    5. 6.5. Applications of Femtosecond Laser-Induced Fiber Bragg Gratings for Sensing
    6. 6.6. Conclusions
  14. 7. Innovative Fiber Bragg Grating Sensors for Highly Demanding Applications: Considerations, Concepts, and Designs
    1. 7.1. Introduction
    2. 7.2. Fiber Bragg Grating Sensor System
    3. 7.3. High-Demand Fiber Bragg Grating Sensor System Performance
    4. 7.4. Fiber Bragg Grating–Based Sensors for Dedicated Operational Conditions
    5. 7.5. Fiber Bragg Grating–Based Sensors for Special Physical Parameters
  15. 8. Fiber Optic Sensors in the Oil and Gas Industry: Current and Future Applications
    1. 8.1. Introduction
    2. 8.2. Breakdown of the Oil and Gas Industry
    3. 8.3. Thermal Monitoring
    4. 8.4. Pressure Monitoring in the Downhole Environment
    5. 8.5. Flow Monitoring
    6. 8.6. Seismic Monitoring
    7. 8.7. Acoustic Monitoring
    8. 8.8. Future Directions
  16. 9. Aerospace Applications of Optical Fiber Mechanical Sensors
    1. 9.1. Introduction and Background
    2. 9.2. Measurements for Flight Control
    3. 9.3. Overview
    4. 9.4. Concluding Remarks
  17. 10. Fiber Optical Sensors in Biomechanics
    1. 10.1. Introduction
    2. 10.2. Why Fiber Optical Sensors in Biomechanics?
    3. 10.3. Applications in Biomechanics of Rigid Bodies
    4. 10.4. Applications in Biomechanics of Deformable Bodies
    5. 10.5. Applications in Biomechanics of Fluids
    6. 10.6. Final Remarks
  18. 11. Fiber Optic Sensors for Biomedical Applications
    1. 11.1. Introduction
    2. 11.2. Biomedical Fiber Optic Sensor Systems
    3. 11.3. Optical Fiber Sensors for Diagnostics
    4. 11.4. Optical Fiber Sensors for Robotic Microsurgery
    5. 11.5. Smart Textiles and Wearable Sensors
  19. Index
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