本书以智能材料与器件为基础，以结构健康监测与控制为目的，较深入、全面地介绍了智能监测技术领域的科研成果与理论体系。本书介绍了光纤传感元件和技术的理论基础、结构与特性，介绍了预应力筋应力测试技术、缆索智能结构和智能纤维增强复合材料斜拉索结构等；介绍了压电传感元件及其特性，介绍了路轮轨力实时监测和桥梁振动监测；介绍了基于形状记忆合金的探测裂纹和主动控制裂纹扩展、防松螺母和自动均载传力件，以及自适应无缝线路等方面的研究与应用；介绍了结构健康监测技术在典型工程中的应用实例。

1 Introduction
1.1 Optical Fiber and Optical Fiber Sensor
1.1.1 Optical Fiber
1.1.2 Optical Fiber Sensor
1.2 Classification and Characteristics of Optical Fiber Sensor
1.2.1 Classification of Optical Fiber Sensor
1.2.2 Characteristics of Optical Fiber Sensor
1.3 Current Status and Development Trends of Optical Fiber Sensing Technology
1.3.1 Current Status of Optical Fiber Sensing Technology
1.3.2 Development Trends of Optical Fiber Sensing Technology
1.4 Structural Health Monitoring Based on Optical Fiber Sensing Technology
References
2 Optical Fiber Interferometer Based on F-P Cavity
2.1 White Light Interferometric F-P Optical Fiber Sensor
2.1.1 Principle of White Light Interferometric F-P Optical Fiber Sensor
2.1.2 White Light Interferometric Sensor Head
2.1.3 Embedded White Light Interferometric Optical Fiber Temperature Sensor
2.1.4 Embedded White Light Interferometric Optical Fiber Strain Sensor
2.2 Optical Accelerometers Based on F-P Cavity
2.2.1 Preliminary Test for Encapsulation
2.2.2 Structure of Accelerometer
2.2.3 Principle of Accelerometer
2.2.4 Test Results and Discussions
2.3 Summary
References
3 Fiber Bragg Grating Sensor
3.1 Basic Principle of Fiber Bragg Grating
3.1.1 Coupled Mode Theory for Fiber Bragg Grating
3.1.2 Principle and Sensitivity of Fiber Bragg Grating Temperature Sensor
3.1.3 Principle and Sensitivity of FBG Strain Sensor
3.1.4 Theoretical Analysis of FBG Temperature-strain Cross Sensitivity
3.2 Temperature Self-compensated FBG Sensor Based on Thermal Stress
3.2.1 Principle of Temperature Self-compensation
3.2.2 Structural Design
3.2.3 Theoretical Analysis of Strain Sensing Characteristics
3.2.4 Parameter Analysis of Temperature Compensation Structure Design
3.2.5 FBG Strain Sensor with Integral Temperature Compensation Structure
3.2.6 Small FBG Strain Sensor
3.3 FBG Soil-pressure Sensor Based on Dual L-shaped Levers
3.3.1 Structure and Principle of the Soil-pressure Sensor
3.3.2 Design and Strength Check of Soil-pressure Sensor
3.3.3 Laboratory Calibration Tests
3.3.4 Field Tests
3.4 Fiber Bragg Grating Displacement Sensor
3.4.1 Sensor Design
3.4.2 Tests and Results
3.5 Fiber Bragg Grating Tilt Sensor
3.5.1 Structure Design of Fiber Bragg Grating Tilt Sensor
3.5.2 Sensing Performance of Fiber Bragg Grating Tilt Sensor
3.5.3 Indoor Simulation Experiment of Fiber Bragg Grating Tilt Sensor
3.6 Summary
References
4 Fiber Laser Sensor
4.1 Acoustic Emission Receiver Based on DFB
4.1.1 Operation Principles
4.1.2 Investigation of AE Directional Sensitivity of DFB Fiber Laser
4.1.3 Location Algorithm
4.1.4 Tests and Results
4.2 DFB Fiber Laser Accelerometers
4.2.1 Principles
4.2.2 Wavelet Denoising
4.2.3 Inertial Algorithm
4.2.4 Test Scheme
4.2.5 Test Results
4.3 Summary
References
5 Fully Distributed Optical Fiber Sensor
5.1 Spontaneous Scattering Spectrum in Optical Fiber
5.2 Application of Spontaneous Scattering in Fully Distributed Optical Fiber Sensing Technology
5.3 Winding Optical Fiber Strain Sensor
5.3.1 Theoretical Basis and Analysis
5.3.2 Structure and Parameters of Winding Optical Fiber Strain Sensor
5.3.3 Measurement System of Winding Optical Fiber Strain Sensor
5.3.4 Sensing Characteristic of Winding Optical Fiber Strain Sensor
5.3.5 Distributed Sensing Characteristics of Winding Optical Fiber Strain Sensor
5.4 Large Displacement Sensor Based on Fully Distributed Optical Fiber Sensor
5.4.1 Principle of Fully Distributed Displacement Sensing Based on Fiber Bragg Grating
5.4.2 Displacement Loading Test
5.4.3 Analysis on the Displacement Sensing Characteristics
5.5 Summary
References
6 Moni