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published: 11.11.2009

Submillimeter Crack Detection With Brillouin-Based Fiber-Optic Sensors - Abstract

IEEE SENSORS JOURNAL, VOL. 9, NO. 11, NOVEMBER 2009

Submillimeter crack is detected with a dedicated fiber-optic strain cable, a 1-m-spatial-resolution (  ) distributed Brillouin sensor and an advanced signal processing technique. The signal processing approach consists in spectrum shape analysis and multiple peaks detection.


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Brillouin optical time domain analysis, Brillouin optical time domain reflectometer, crack detection, distributed Brillouin sensor (DBS), fiber-optic strain sensing cable, signal processing, spatial resolution, structural health monitoring, strain measure