Original title: Optical fiber sensors for measurement strain and vibration
Authors: Mikel, Břetislav ; Helán, R. ; Buchta, Zdeněk ; Holík, M. ; Jelínek, Michal ; Číp, Ondřej
Document type: Papers
Conference/Event: Optical, fiber, and sensors /6./, Prague (CZ), 20140827
Year: 2015
Language: eng
Abstract: We present optical fiber sensors to measurement strain and vibration. The sensors are based on fiber Bragg gratings (FBG). We prepared construction of strain sensors with respect to its implementation on the outer surface of concrete structures and with compensation of potential temperature drifts. These sensors are projected with look forward to maximal elongation and strength which can be applied to the sensor. Each sensor contains two optical fibers with FBGs. One FBG is glued into the sensor in points of fixation which are in the line with mounting holes. This FBG is prestressed to half of measurement range, than the stretching and pressing can be measured simultaneously by one FBG. The second FBG is placed inside the sensor without fixation to measure temperature drifts. The sensor can be used to structure health monitoring.
Keywords: fiber Bragg gratings; fiber tapering; length measurement; optical fiber sensors; tilted fiber Bragg gratings; vibration measurement
Project no.: VG20132015124 (CEP)
Funding provider: GA MV
Host item entry: Optical, fiber, and sensors VI (Proceedings og SPIE 9450), ISBN 978-1-62841-566-7, ISSN 0277-786X

Institution: Institute of Scientific Instruments AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0271709

Permalink: http://www.nusl.cz/ntk/nusl-373369


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Research > Institutes ASCR > Institute of Scientific Instruments
Conference materials > Papers
 Record created 2018-03-09, last modified 2021-11-24


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