Results 41 to 50 of about 26,432 (315)
Frequency-Shifted Interferometry — A Versatile Fiber-Optic Sensing Technique
Fiber-optic sensing is a field that is developing at a fast pace. Novel fiber-optic sensor designs and sensing principles constantly open doors for new opportunities.
Fei Ye, Yiwei Zhang, Bing Qi, Li Qian
doaj +1 more source
Performance Analysis of a Noncontact Plastic Fiber Optical Fiber Displacement Sensor with Compensation of Target Reflectivity [PDF]
An inexpensive fiber-based noncontact distance sensor specific for monitoring short-range displacements in micromachining applications is presented. To keep the overall costs low, the sensor uses plastic optical fibers and an intensiometric approach ...
Alberto Vallan +8 more
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A Large Area Fiber Optic Gyroscope on multiplexed fiber network [PDF]
We describe a fiber optical gyroscope based on the Sagnac effect realized on a multiplexed telecom fiber network. Our loop encloses an area of 20 km2 and coexists with Internet data traffic.
LEVI, FILIPPO +13 more
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Reviews on Corrugated Diaphragms in Miniature Fiber-Optic Pressure Sensors
Corrugated diaphragms (CDs) have been widely used in many fields because of their higher pressure sensitivity and wider linear range compared to flat diaphragms (FDs) in the same circumstances.
Honglin Li +5 more
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The detection of ultrasound using fiber-optic sensors [PDF]
Ultrasound is a valuable tool for the detection of damage in structures and the characterization of material properties. Its detection is conventionally done by piezoelectric transducers, however fiber-optic sensors can operate over a greater range of ...
Culshaw, B. +13 more
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Multi-channel fiber-optic temperature sensor system using an optical time-domain reflectometer
In this study, we developed a multi-channel fiber-optic temperature sensor system (FTSS) using an optical time-domain reflectometer (OTDR). The developed FTSS consists of fiber-optic temperature-sensing probes, a fiber-optic coupler, a transmitting ...
H.J. Kim +6 more
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Optical fiber sensing based on reflection laser spectroscopy [PDF]
An overview on high-resolution and fast interrogation of optical-fiber sensors relying on laser reflection spectroscopy is given. Fiber Bragg-gratings (FBGs) and FBG resonators built in fibers of different types are used for strain, temperature and ...
De Natale, Paolo +34 more
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Intra-cavity spectroscopy using amplified spontaneous emission in fiber lasers [PDF]
Fiber laser sources offer interesting possibilities for gas sensors since they can operate over an extended wavelength range, encompassing the near-IR absorption lines of a number of important gases but a major problem is that overtone absorption lines ...
Norhana Arsad +7 more
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Over decades, fiber-optic temperature sensors based on conventional single-mode fibers (SMF) have been demonstrated with either high linearity and stability in a limited temperature region or poor linearity and thermal hysteresis in a high-temperature ...
Zhe Zhang +7 more
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Applied Fiber Optic Measurement for Geohydraulic Engineering [PDF]
Engineers have long sought the possibility of measuring parameters such as temperature and pressure continuously in the underground with high precision, high spatial resolution and high band width of parameters. Distributed fibre optic measurement offers
Nishigaki, Makoto, Schreck, Martin
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