Browsing Forschungszentren by Author "47cf5855-8b42-4f74-b6a2-4558c815e780"

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Durability of functionalized carbon structures with optical fiber sensors in a highly alkaline concrete environment

Bremer, Kort; Alwis, Lourdes S.M.; Zheng, Yulong; Weigand, Frank; Kuhne, Michael; Helbig, Reinhard; Roth, Bernhard (Basel : MDPI AG, 2019)

The paper presents an investigation into the durability of functionalized carbon structures (FCS) in a highly alkaline concrete environment. First, the suitability of optical fibers with different coatings-i.e., acrylate, ...
Evaluating the Performance of Functionalized Carbon Structures with Integrated Optical Fiber Sensors under Practical Conditions

Bremer, Kort; Alwis, Lourdes S.M.; Weigand, Frank; Kuhne, Michael; Zheng, Yulong; Krüger, Marco; Helbig, Reinhard; Roth, Bernhard (Basel : MDPI AG, 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, ...
Investigating the strain, temperature and humidity sensitivity of a multimode graded-index perfluorinated polymer optical fiber with bragg grating

Zheng, Yulong; Bremer, Kort; Roth, Bernhard (Basel : MDPI AG, 2018)

In this work we investigate the strain, temperature and humidity sensitivity of a Fiber Bragg Grating (FBG) inscribed in a near infrared low-loss multimode perfluorinated polymer optical fiber based on cyclic transparent ...
Long-period gratings in highly germanium-doped, single-mode optical fibers for sensing applications

Schlangen, Sebastian; Bremer, Kort; Zheng, Yulong; Böhm, Sebastian; Steinke, Michael; Wellmann, Felix; Neumann, Jörg; Roth, Bernhard; Overmeyer, Ludger (Basel : MDPI AG, 2018)

Long-period fiber gratings (LPGs) are well known for their sensitivity to external influences, which make them interesting for a large number of sensing applications. For these applications, fibers with a high numerical ...
Structural Health Monitoring Using Textile Reinforcement Structures with Integrated Optical Fiber Sensors

Bremer, Kort; Weigand, Frank; Zheng, Yulong; Alwis, Lourdes Shanika; Helbig, Reinhard; Roth, Bernhard (Basel : MDPI AG, 2017)

Optical fiber-based sensors "embedded" in functionalized carbon structures (FCSs) and textile net structures (TNSs) based on alkaline-resistant glass are introduced for the purpose of structural health monitoring (SHM) of ...
Towards mode-multiplexed fiber sensors : An investigation on the spectral response of etched Graded Index OM4 multi-mode fiber with Bragg grating for refractive index and temperature measurement

Bremer, Kort; Alwis, Lourdes Shanika Malindi; Zheng, Yulong; Roth, Bernhard Wilhelm (Basel : Molecular Diversity Preservation International (MDPI), 2020)

An investigation on the feasibility of utilizing Mode Division Multiplexing (MDM) for simultaneous measurement of Surrounding Refractive Index (SRI) and temperature using a single sensor element based on an etched OM4 ...

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Browsing Forschungszentren by Author "47cf5855-8b42-4f74-b6a2-4558c815e780"

Browsing Forschungszentren by Author "47cf5855-8b42-4f74-b6a2-4558c815e780"

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