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14 February 2002 Large-scale sensing arrays based on fiber Bragg gratings
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Proceedings Volume 4578, Fiber Optic Sensor Technology and Applications 2001; (2002)
Event: Environmental and Industrial Sensing, 2001, Boston, MA, United States
In this paper a new quasi-distributed sensor suitable for multi-point detection and localizing of alarm conditions along large structures is presented. The sensor is based on a serial array of equal low-reflective fiber Bragg gratings. The sensor interrogation employs measurement of light intensity at a fixed reference wavelength. Difference between the reference wavelength and the Bragg wavelength in normal conditions set a threshold level for detection. Method was tested experimentally in two different configurations. A simple design of the sensor in combination with the economical interrogation technique makes this sensor interesting for real applications.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mikhail G. Shlyagin, Ileana Marquez Borbon, Vasilii V. Spirin, Rosa Lopez, Evgueni Anatolevich Kuzin, and Manuel May Alarcon "Large-scale sensing arrays based on fiber Bragg gratings", Proc. SPIE 4578, Fiber Optic Sensor Technology and Applications 2001, (14 February 2002);

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