Long-Gauge Fiber Optic Sensors: Strain Measurement
Long-gauge fiber optic sensors, securely mounted on the concrete surface near the tensile side, were found to accurately measure both large and small deformations, outperforming LVDTs.
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Long-gauge fiber optic sensors, securely mounted on the concrete surface near the tensile side, were found to accurately measure both large and small deformations, outperforming LVDTs.
In this paper, accuracy calibration experiments and the related analyses of two fiber-optic sensing technologies, the fiber-optic grating (FBG) and optical frequency domain reflectometry
When an optical fiber is embedded within a specimen using capillaries, both the fiber positions and orientations may vary along the fiber. An analytical model was established to investigate the
The presented measuring system consisting of fiber-optic sensors, which are positioned in the concrete by means of a support profile, represents a future-oriented measuring method for
yer was performed in order to measure the precision of strain detection by the Sm. rt-layer. Some inaccuracy in strain detection was found during the analysis of the results. In order to find out the
This manuscript has been authored by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics. for
In this paper, we propose a surface-mounted, fiber optic conjugate stress sensor (FOCSS) for tracking microscale changes through measurement of the host’s instantaneous
In order to further improve the measurement range and accuracy of optical fiber stress sensor based on the interference between rising vortex beam and plane wave beam, a new stress
In this paper, an ultrasensitive fiber-optic strain sensor is demonstrated by constructing an FPI with a large ratio of stretch-ing length to interference length.
In this paper, we propose a fiber-optic strain and temperature sensor with a highly simplified and cost-effective fabrication process that uses only inexpensive standard optical fibers.