Polymer Optical Fiber Sensors for Distributed Strain Measurement and Application in Structural Health Monitoring

被引:113
作者
Liehr, Sascha [1 ]
Lenke, Philipp [1 ]
Wendt, Mario [1 ]
Krebber, Katerina [1 ]
Seeger, Monika [2 ]
Thiele, Elke [2 ]
Metschies, Heike [2 ]
Gebreselassie, Berhane [3 ]
Muenich, Johannes Christian [4 ]
机构
[1] BAM Fed Inst Mat Res & Testing, D-12205 Berlin, Germany
[2] Saxon Text Res Inst STFI, D-09125 Chemnitz, Germany
[3] Univ Kassel, D-34125 Kassel, Germany
[4] Univ Karlsruhe, D-76128 Karlsruhe, Germany
关键词
Distributed strain sensor; optical fiber sensor; polymer optical fiber (POF) sensors; structural health monitoring;
D O I
10.1109/JSEN.2009.2018352
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Polymer optical fiber (POF) sensors have the unique ability to measure high strain distributed along the fiber up to 40% using the optical time-domain reflectometry (OTDR) technique. Both, standard PMMA fibers and perfluorinated (PF) graded-index (GI) POF are introduced and evaluated in potential use and applicability. Further, distributed length change measurement based on cross-correlation analysis of the characteristic fiber signature of PF POF is introduced. We conclude the advances in distributed POF strain sensors technology with respect to application in structural health monitoring. Special focus is on the sensor integration into technical textiles for health monitoring of geotechnical structures and masonry structures. Measurement results of sensor-equipped textiles in different model tests are presented, displacement of soil and cracks in retrofitted masonry structures are detected and evaluated.
引用
收藏
页码:1330 / 1338
页数:9
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