Results 111 to 120 of about 297,701 (361)
Strain and dynamic measurements using fiber optic sensors embedded into graphite/epoxy tubes [PDF]
Graphite/epoxy tubes were fabricated with embedded optical fibers to evaluate the feasibility of monitoring strains with a fiber optic technique. Resistance strain gauges were attached to the tubes to measure strain at four locations along the tube for ...
Dehart, D. W. +5 more
core +1 more source
Polarization properties of interferometrically interrogated fiber Bragg grating and tandem-interferometer strain sensors [PDF]
, 2006 Lead sensitivity in low-coherence interferometric fiber-optic sensors is a well-known problem. It can lead to a severe degradation in the sensor resolution and accuracy through its effect on the fringe visibility and interferometric phase.
Cranch, G A +2 more
core +1 more source
1986 Solid-State, Actuators, and Microsystems Workshop Technical Digest, 1986 This paper reviews the theory of fiber-optic sensor technology and presents some of the current applications. The future potential for applications of fiber-optic sensors is almost unlimited since there appear to be few parameters that cannot be measured with this technology.
openaire +4 more sources
Multi-channel fiber-optic temperature sensor system using an optical time-domain reflectometer
Results in Physics, 2018 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
doaj
Soil total suction sensing using fiber-optic technology
Geoderma, 2023 Measurement of the soil water suction is important for investigating geotechnical problems and mitigating associated risks; however, conventional high-range suction measurement techniques have some limitations for accurate, long-term, and quasi ...
Jun-Yi Guo +7 more
doaj
Colliding pulse mode-locked all polarization maintaining fiber gyrolaser [PDF]
arXiv, 2019 A bidirectional all polarization maintaining fiber laser as a highly sensitive sensor for rotation is presented. This sensor is based on intracavity phase interferometry with application in inertial sensing, magnetometry, displacements and nonlinear index.
arxiv
Mechanical Properties of Different Austenitic High‐Nitrogen Steel Grades Produced by Powder Mixtures
Advanced Engineering Materials, EarlyView.The effect of nitrogen content on the mechanical properties of austenitic stainless steels is investigated using tailored powder metallurgical processing. Different PM routes, including additive manufacturing, enable controlled nitrogen uptake and complex geometries.
Felix Radtke +6 more
wiley +1 more source
Development of a fiber optic high temperature strain sensor [PDF]
From 1 Apr. 1991 to 31 Aug. 1992, the Georgia Tech Research Institute conducted a research program to develop a high temperature fiber optic strain sensor as part of a measurement program for the space shuttle booster rocket motor.
Brookshire, S. P. +2 more
core +1 more source
Strain and temperature sensors using multimode optical fiber Bragg gratings and correlation signal processing [PDF]
, 2002 Multimode fiber optic Bragg grating sensors for strain and temperature measurements using correlation signal processing methods have been developed. Two multimode Bragg grating sensors were fabricated in 62/125 m graded-index silica multimode fiber ...
Jackson, PR, Jones, BE, Lim, J, Yang, QP
core +1 more source
International Journal of Geophysics, 2011 The structural strain measurement of tension and compression in a 4 m long concrete beam was demonstrated with a distributed fiber-optic sensor portable system based on Brillouin scattering.
Romeo Bernini +4 more
doaj +1 more source