Fiber Sensor Technology Today
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概要
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Fiber sensor technologies are overviewed. Since the early 1970s, this field has been developed, on the basis of the same devices and photonic principles as fiber communication technologies. Besides simple configurations, in which the fiber acts only as a data transmission line, sophisticated configurations have also been developed, in which the fiber is used as a device to realize unique sensing mechanisms. The fiber optic gyroscope (FOG) is a good example, and has been developed as an absolute rotation sensor used, for example, for navigation and/or attitude control applications. Compared with traditional spinning-mass gyroscopes, the FOG has advantages, such as a short warming-up time, a light weight, and easy handling. A Japanese satellite, which was launched in August 2005 with a mission to observe the aurora, is controlled with a FOG. The FOG has also been used in consumer applications, such as the camera stabilizer, radio-controlled (RC) helicopter navigation, and the control of humanoid robots. Recently, distributed and multiplexed sensing schemes, in particular, have been studied and developed, in which a long fiber acts like a “nerve” for feeling the strain and/or the temperature distribution along the fiber. Performances of artificial nerve systems have markedly improved within the last couple of years, in spatial resolution and measurement speed. By embedding the “fiber-optic nerve system” in aircraft wings, bridges and tall buildings, these materials and structures can sense damage to prevent disasters.
- 2006-08-30
著者
関連論文
- Stable Entire-Length Measurement of Fiber Strain Distribution by Brillouin Optical Correlation-Domain Reflectometry with Polarization Scrambling and Noise-Floor Compensation
- Polarization Beat Length Distribution Measurement in Single-Mode Optical Fibers with Brillouin Optical Correlation-Domain Reflectometry
- Variable Optical Filter Using Dynamic Grating in Er Doped Fiber Controlled by Synthesis of Optical Coherence Function : Proposal and Experimental Verification(Regular Section)
- Multiplexed Optical Fiber Interferometric Sensor System by Synthesis of Optical Coherence Function with Phase Generated Carrier
- Resonator Fiber Optic Gyro with Bipolar Digital Serrodyne Scheme Using a Field-Programmable Gate Array-Based Digital Processor
- C-3-20 Background Noise Suppression in Brillouin Optical Correlation Domain Reflectometry by Intensity Modulation Scheme
- C-3-66 Brillouin optical correlation domain analysis system with kilometer measurement range based on intensity modulation scheme
- C-3-65 Distributed measurement with millimeter-order spatial resolution based on Brillouin optical correlation domain analysis
- Dependence of the Brillouin Frequency Shift on Temperature in a Tellurite Glass Fiber and a Bismuth-Oxide Highly-Nonlinear Fiber
- B-13-23 Brillouin Optical Correlation-Domain Analysis Based on Simultaneous Utilization of Sinusoidal and Noise Modulation
- Tunable Fiber-Optic Delay Line Based on Stimulated Brillouin Scattering
- Novel Distributed Fiber-Optic Strain Sensor by Localizing Dynamic Grating in Polarization-Maintaining Erbium-Doped Fiber: Proposal and Theoretical Analysis
- Measurement for Scattering Media by Synthesis of Optical Coherence Function with Super-Structure Grating Distributed Bragg Reflector Laser Diode
- Fiber-Optic Distributed Strain Sensing System by Brillouin Optical Correlation Domain Analysis with a Simple and Accurate Time-Division Pump-Probe Generation Scheme
- Range-Enlargement of Simplified Brillouin Optical Correlation Domain Analysis Based on a Temporal Gating Scheme
- C-3-34 Simplified Brillouin Optical Correlation Domain Analysis System with Optimized Time-gating Scheme for Range Enhancement
- Measurement of Bragg-Wavelength Distribution in a Long-Length Fiber Bragg Grating with High Speed Sampling
- C-3-27 Background Noise Suppression in Brillouin Optical Correlation Domain Reflectometry based on Optimized Intensity Modulation Scheme
- B-13-16 Sub-Nano Resolution Optic Fiber Static Strain Sensor Using a Novel Sideband Interrogation Technique
- C-3-106
- Fiber Sensor Technology Today
- B-13-12 Simulation and Experiment for Verifying Intensity Modulation Scheme in Brillouin Optical Correlation Domain Reflectometry
- High-Reflectance-Resolution Optical Reflectometry with Synthesis of Optical Coherence Function
- High-speed high-reflectance-resolution reflectometry by synthesis of optical coherence function
- Fiber-Optic Distributed Strain Sensing System by Brillouin Optical Correlation Domain Analysis with a Simple and Accurate Time-Division Pump-Probe Generation Scheme