Results 21 to 30 of about 9,117,404 (329)
Comparison of different fiber coatings for distributed strain measurement in cementitious matrices
Journal of Sensors and Sensor Systems, 2020 . Distributed fiber optic strain measurement based on Rayleigh scattering has recently become increasingly popular in automotive and mechanical engineering for strain monitoring and in the construction industry, especially structural health monitoring ...
M. Weisbrich, K. Holschemacher, T. Bier
semanticscholar +1 more source
IEEE Photonics Journal, 2017 Dynamic Brillouin optical fiber sensors based on fast scanning of Brillouin gain spectrum (BGS) are one of the most promising techniques to measure dynamic strains, where an ∼11-GHz bandwidth arbitrary waveform generator (AWG) or a vector ...
Dexin Ba +6 more
doaj +1 more source
IEEE Photonics Journal, 2019 We proposed and demonstrated an optical fiber Fabry-Perot (F-P) sensor with long sensing length for strain measurement. The structure of the sensor was fabricated with a simple process by splicing a long single mode fiber (SMF) with a short section of ...
Zhichao Lv +7 more
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Two-axis bend measurement with Bragg gratings in multicore optical fiber [PDF]
, 2003 We describe what is to our knowledge the first use of fiber Bragg gratings written into three separate cores of a multicore fiber for two-axis curvature measurement.
Araujo +16 more
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Experimental methodology of study of damage initiation and development in textile composites in uniaxial tensile test [PDF]
, 2008 Damage in textile composites is closely connected with the internal micro- and meso-geometry of the reinforcement, and reveals features, which are not present in the damage processes in classical laminates. This paper proposes a test sequence intended to
Baudry, F. +6 more
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Patterned probes for high precision 4D-STEM bragg measurements. [PDF]
, 2019 Nanoscale strain mapping by four-dimensional scanning transmission electron microscopy (4D-STEM) relies on determining the precise locations of Bragg-scattered electrons in a sequence of diffraction patterns, a task which is complicated by dynamical ...
Bustillo, Karen C +6 more
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An Indirect Measurement Methodology to Identify Load Fluctuations on Axial Turbine Runner Blades
Sensors, 2020 Smooth integration of intermittent energy sources, such as solar and wind power, into the electrical grid induces new operating conditions of the hydraulic turbine by increasing the off-design operations, start/stops, and load variations.
Arash Soltani Dehkharqani +3 more
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Simultaneous Measurement for Strain and Temperature Using Fiber Bragg Gratings and Multimode Fibers [PDF]
, 2008 An all-fiber sensor capable of simultaneous measurement of temperature and strain is newly presented. The sensing head is formed by a fiber Bragg grating combined with a section of multimode fiber that acts as a Mach-Zehnder interferometer for ...
Lit, John W.Y. +3 more
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Optics Express, 2019 Simultaneous temperature and strain measurement with enhanced accuracy by using Deep Neural Networks (DNN) assisted Brillouin optical time domain analyzer (BOTDA) has been demonstrated.
Biwei Wang +5 more
semanticscholar +1 more source
Strain measurement at the knee ligament insertion sites [PDF]
, 2003 We describe the modification of an existing method of ligament strain measurement at the knee joint in detail. At ten fresh joint specimens we used that technique where strain gauges are attached to the ligamentous insertions and origins.
Bcrglund +14 more
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