Temperature, displacement, and acceleration fiber optic sensor for large machinery monitoring
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AuthorLópez Higuera, José Miguel; Cobo García, Adolfo; Echevarría Cuenca, Juan; Conde Portilla, Olga María; Madruga Saavedra, Francisco Javier
© 2001 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Proceedings of SPIE, 2001, vol. 4328, 142-150
Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, Newport Beach, CA
SPIE Society of Photo-Optical Instrumentation Engineers
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Fiber Bragg gratings
Fiber optics sensors
In this paper, a multi-parameter optical sensor system for vibration, temperature and strain monitoring is presented. It is based on a hybrid singlemode-multimode fiber optic transducer, where the vibration is detected by means of a fiber cantilever beam and extrinsic coupling of light, while two fiber Bragg gratings measure the temperature and strain. Experimental results show good performance for the monitoring of large electric machines.
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