Fiber-optic strain sensors
A SMART SYSTEM FOR MONITORING OIL PIPELINE INSTALLATIONS USING FIBER OPTIC SENSORS
... and fiber optical ...and fiber optic communication industries are used extensively in fiber optic sensor (FOS) ...traditional sensors for rotation, acceleration,vibration, ...
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FIBER OPTIC SENSORS FOR HEALTH MONITORING OF CIVIL ENGINEERING STRUCTURES
... appropriate sensors and techniques for structural health monitoring in the field of civil engineering that would be highly reliable and ...many sensors and measurement techniques are available, fiber ...
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Rockslide deformation monitoring with fiber optic strain sensors
... higher, fiber optic (FO) strain sensors offer exciting new possibilities for in-situ landslide ...long-gauge fiber Bragg grating sensors installed at the Randa Rockslide ...
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Studies on Temperature and Strain Sensitivities of a Few-mode Critical Wavelength Fiber Optic Sensor
... reaches a maximum at the CWL. As a result, in sensor operation, peaks on the different sides of the CWL then shift in opposite directions, and the associated temperature/strain sensitivities increase significantly ...
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Performance Surveillance of Gentilly-1 Reactor Building GFRP Repair Using Fiber Optic Sensors and Strain Gauges
... FP-FOS sensors were installed on the GFRP wraps with two layers of protection as shown in Figure ...Four sensors were installed in the ‘smart patches’ made of a carbon FRP strips (two gauges in each ...
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Research of Data Processing Algorithms from Fiber Optic Sensors
... from fiber-optic sensors (FOS) based on fiber Bragg gratings (FBG), due to which errors in calculating the strain values in diagnostic systems of the stress-strain state ...real ...
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Measurement of disruption forces in JET using fiber-optic sensors
... optical fiber transducers Fiber Bragg Gratings (FBGs) were installed in addition to the currently used strain ...and fiber-optic ...the strain gauges are within the same range, ...
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Qualification of a truly distributed fiber optic technique for strain and temperature measurements in concrete structures
... Durability of structures is a crucial issue in civil engineering, involving major economical and environmental repercussions. Fundamental issues such as optimization of the maintenance strategy and extension of the ...
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Laser Cladding-based metallic embedding technique for fiber optic sensors
... attaching fiber optic sensors to metallic structures is important for optimum monitoring, overcoming the limitations of glues and adhesives which are known to degrade under certain ...the ...
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Research on Gamma Ray Detections using Fiber Optic Radiation Sensors
... Radiation dosimeter is designed based on the interaction between incident radiation and the sensor. This interaction of material with radioactive element acts as a sensor in detection of radiation dosage. In general, the ...
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Three dimensional shape and stress monitoring of bulk carriers based on iFEM methodology
... a fiber optic sensing system that uses FBG ...fine strain measurements can be easily collected in operational conditions of the bulk ...FBG strain measurements that involve noise levels up to ...
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Strain Wave Acquisition by a Fiber Optic Coherent Sensor for Impact Monitoring
... of strain gauges and accelerometers [10], typically exploiting a network of piezoelectric transducers connected to high sampling rate oscilloscopes (MS/s) ...optical fiber sensors (OFSs) have been ...
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Comparison among Different Fiber Coatings on the Concrete Shrinkage Test for Distributed Optical Strain Measurements based on Rayleigh Backscattering
... The fiber optic strain measurement offers essential benefits compared to established measurement methods such as fiber Bragg grating sensors (FBG), strain gauges or inductive ...
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Examination of Adulteration of Edible Oils at the Wavelength of 660nm using a U–Shaped Sensing Element Based Extrinsic Fiber Optic Sensor
... advantages, fiber optic sensors with different design schemes depending upon the parameter to be measured, have been developed and successfully implemented across the world for the last few decades ...
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The detection of ultrasound using fiber-optic sensors
... these sensors can now be pre- dicted in broad ...the strain or pressure field to give integrated displacement or phase delay can be qualitatively assessed from straightforward spatial ar- ...
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The functionality of fiber bragg grating sensor compared to that of foil gaug
... grating sensors themselves adapt well to use on, “smart ...the strain values obtained from the fiber optic sensors and those obtained from conventional foil gauges; from a maximum ...
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Hybrid Fibre Optic Sensor Network for Real-time High Temperature Performance Monitoring of Steel Structures
... durable sensors, the structural performance of steel structures in fire conditions is challenging to be evaluated in real time, especially when the associated civil structures are in a large ...a fiber ...
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Self-Monitoring Fiber Reinforced Polymer Retrofits
... The strain profiles along the FRP length were derived from the strain gage ...of strain profiles to identify FRP debonding can be a very successful method; however, conventional strain gages ...
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Fiber-optic sensors : applications and advances
... of strain and/or temperature sensors for load and condition moni- toring, particularly in carbon fiber composite ...of sensors facilitate the gathering of operational data from structures such as ...
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First-time demonstration of measuring concrete prestress levels with metal packaged fibre optic sensors
... To assess the performance of the metal packaged strain and temperature sensors in an environment similar to the intended application, two 2.4 metre prestressed concrete beams were cast for the ...
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