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|Title:||Lpg-based Sensor For Curvature And Vibration|
|Abstract:||A long-period grating (LPG) written on a standard single mode fiber is investigated as a curvature and vibration sensor. It is demonstrated a high sensitivity to applied curvature and the possibility to monitor vibration in a wide range of frequencies from 30 Hz to 2000 Hz. The system was tested using an intensity based interrogation scheme with the LPG sensor operating in the curvature regime. Results have shown a reproducible frequency discrimination in the 30 Hz to 2000 Hz, with resolutions between 11 mHz and 913 mHz. Frequency retrieval could be perfouned independent of temperature up to 86 degrees C.|
|Subject:||Long-period Fiber Grating (lpg)|
Fiber Optic Sensor
Intensity Modulation Scheme
|Editor:||SPIE-INT SOC OPTICAL ENGINEERING|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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