LPG-based sensor for curvature and vibration

• Type: Article in International Conference Proceedings Book
• Date: 2016

Authors

Nascimento, IM (Author) Other; Chesini, G (Author) Other; Baptista, JM (Author) Other; Cordeiro, CMB (Author) Other; Jorge, PAS (Author) FCUP

Conference proceedings International

Title: SIXTH EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS

6th European Workshop on Optical Fibre Sensors

Univ Limerick, Limerick, IRELAND, MAY 31-JUN 03, 2016

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Scopus - 1 Citation

Other information

Authenticus ID: P-00K-M22

DOI: 10.1117/12.2237041

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4