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B8.3 Influence of Temperature on Distributed Strain Sensing with OTDR in Polymer Optical Fibers

  • Strain in ground and earthworks can be measured by polymer optical fibers (POF) applied to geotextiles. We measure the increase of backscatter (IOB) in the fiber under strain using optical time domain reflectometry (OTDR). The effect of temperature on this measurement principle is investigated. The local backscatter changes by 0.003 dB/K for common ambient temperature. In addition it is shown, that temperature depended viscoelastic properties of the polymer does affect IOB.

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Author:S. Dengler, N. Schmidt, M. Luber, J. Fischer, O. Ziemann, R. Engelbrecht, H. Hangen
DOI:https://doi.org/10.5162/smsi2021/b8.3
ISBN:978-3-9819376-4-0
Parent Title (English):SMSI 2021 - Sensors and Instrumentation
Publisher:AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany
Document Type:conference proceeding (article)
Language:English
Reviewed:Nicht begutachtet/Not reviewed
Release Date:2024/07/03
Tag:optical time domain reflectometry, structural health monitoring, strain sensing, geotextiles, polymer optical fib
Pagenumber:2
First Page:155
Last Page:156
institutes:Fakultät für Elektrotechnik Feinwerktechnik Informationstechnik
Polymer Optical Fiber Application Center
Research Themes:Materialien & Produktionstechnik
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