Results 41 to 50 of about 3,633,666 (147)

Experimental and Numerical Investigation on the Strain Response of Distributed Optical Fiber Sensors Bonded to Concrete: Influence of the Adhesive Stiffness on Crack Monitoring Performance

open access: yesSensors, 2020
The present study investigated the strain response of a distributed optical fiber sensor (DOFS) sealed in a groove at the surface of a concrete structure using a polymer adhesive and aimed to identify optimal conditions for crack monitoring.
Ismail Alj   +6 more
doaj   +1 more source

Effects of Photographing and Analysis Condition on Strain Measurement Accuracy by Digital Image Correlation Method [PDF]

open access: yes, 2011
The influence given to the strain measurement accuracy of DICM when various parameters of the analysis condition etc. when the measurement condition and strain of the angle and the shutter speed etc.
松田, 浩   +4 more
core  

Quantitative shearography: error reduction by using more than three measurement channels [PDF]

open access: yes, 2011
Shearography is a noncontact optical technique used to measure surface displacement derivatives. Full surface strain characterization can be achieved using shearography configurations employing at least three measurement channels.
Charrett, Thomas O. H.   +5 more
core   +1 more source

Measurement of Strains in Fixed Bridges with Electronic Strain Gauges [PDF]

open access: yesJournal of Dental Research, 1967
Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/66954/2/10.1177_00220345670460032701 ...
Craig, Robert G., Peyton, Floyd Avery
openaire   +3 more sources

Dual Temperature and Strain Measurement with the Combined Fluorescence Lifetime and Bragg Wavelength Shift Approach in Doped Optical Fiber [PDF]

open access: yes
We have constructed fiber-optic sensors to measure temperature and strain by combining the properties of fiber Bragg gratings with the fluorescent lifetimes of various doped fibers.
Wade, Scott A.   +4 more
core   +1 more source

Simultaneous, independent measurement of temperature and strain using a tilted fibre Bragg grating [PDF]

open access: yes, 2007
A single fibre Bragg grating is used to discriminate between temperature and strain by exploiting the core-cladding mode coupling of a tilted fibre Bragg grating (TFBG).
Ralph P. Tatam   +5 more
core   +1 more source

Efficient fiber Bragg grating and fiber Fabry-Pe'rot sensor multiplexing scheme using a broadband pulsed mode-locked laser [PDF]

open access: yes, 2005
A pulsed broadband mode-locked laser (MLL) combined with interferometric interrogation is shown to yield an efficient means of multiplexing a large number of fiber Bragg grating (FBG) or fiber Fabry-Perot (FFP) strain sensors with high performance ...
Flockhart, G M H   +2 more
core   +4 more sources

Evaluating the Performance of Functionalized Carbon Structures with Integrated Optical Fiber Sensors under Practical Conditions

open access: yesSensors, 2018
An Optical Frequency Domain Reflectometry (OFDR) based fiber optic sensor scheme “embedded„ in concrete for the purpose of structural health monitoring (SHM) of carbon concrete composites (C3) is presented. The design, while strengthening the
Kort Bremer   +7 more
doaj   +1 more source

Intermediate strain rate testing methodologies and full-field optical strain measurement techniques for composite materials characterisation

open access: yes, 2014
Two optical full-field strain measurement techniques, Digital Image Correlation and the Grid Method, are applied to characterise the strain-rate dependent constitutive behaviour of composite materials.
Longana, M.L.
core   +1 more source

Detection of the Strains Induced in Murine Tibias by Ex Vivo Uniaxial Loading with Different Sensors

open access: yesSensors, 2019
In this paper, the characterization of the main techniques and transducers employed to measure local and global strains induced by uniaxial loading of murine tibiae is presented.
Emanuele Rizzuto   +7 more
doaj   +1 more source

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