Fibre segment interferometry for dynamic strain measurements

Simple item page
dc.contributor.authorKissinger, Thomas
dc.contributor.authorCorreia, Ricardo N.
dc.contributor.authorCharrett, Thomas O. H.
dc.contributor.authorJames, Stephen W.
dc.contributor.authorTatam, Ralph P.
dc.date.accessioned2016-05-05T14:38:28Z
dc.date.available2016-05-05T14:38:28Z
dc.date.issued2016-02-18
dc.description.abstractUsing a novel range-resolved interferometric signal processing technique based on the sinusoidal optical frequency modulation of a cost-effective laser diode, a fibre sensing approach termed fibre segment interferometry (FSI) is described. In FSI, a chain of long-gauge length fibre optic strain sensors are separated by identical in-fibre partial reflectors. Targeted at dynamic strain analysis and ultrasound detection for structural health monitoring, this approach allows integrated strain measurements along fibre segments, removing the sensing gaps and sensitivity to inhomogeneities found with localized fibre sensors. In this paper, the multiplexing of six fibre segments, each of length 12.5 cm, is demonstrated. The sensor array can be interrogated at 98 kHz data rate, achieving dynamic strain noise levels 0:14 n Hz 0:5. The reflector fabrication is discussed, an analysis of linearity and noise performance is carried out and results from an exemplar experiment to determine the speed-of-sound of a stainless steel rod are shown.en_UK
dc.identifier.citationKissinger T, Correia R, Charrett T, et al. (2016) Fibre segment interferometry for dynamic strain measurements. Journal of Lightwave Technology, Volume 34, Issue 19, October 2016, pp. 4620-4626en_UK
dc.identifier.cris3958900
dc.identifier.issn0733-8724
dc.identifier.urihttp://dx.doi.org/10.1109/JLT.2016.2530940
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/9862
dc.language.isoenen_UK
dc.publisherInstitute of Electrical and Electronics Engineersen_UK
dc.rightsAttribution 3.0 Internationalen_UK
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/
dc.subjectOptical fibre sensorsen_UK
dc.subjectFiber gratingsen_UK
dc.subjectOptical interferometryen_UK
dc.subjectStrain measurementen_UK
dc.subjectCondition monitoringen_UK
dc.titleFibre segment interferometry for dynamic strain measurementsen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Fibre_segment_interferometry_for_dynamic_strain_measurements-2016.pdf
Size:
2.13 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.79 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SATM)