Curvature Sensor Based on a Fabry-Perot Interferometer

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

Authors

Monteiro, CS (Author) Other; Ferreira, MS (Author) Other; Kobelke, J (Author) Other; Schuster, K (Author) Other; Bierlich, J (Author) Other; Frazao, O (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

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 1 Citation

Other information

Authenticus ID: P-00K-M2C

DOI: 10.1117/12.2235215

Abstract (EN): A curvature sensor based on a Fabry-Perot interferometer is proposed. A capillary tube of silica is fusion spliced between two single mode fibers, producing a Fabry-Perot cavity. The light propagates in air, when passing through the capillary tube. Two different cavities are subjected to curvature and temperature. The cavity with shorter length shows insensitivity to both measurands. The larger cavity shows two operating regions for curvature measurement, where a linear response is shown, with a maximum sensitivity of 18.77pm/m(-1) for the high curvature radius range. When subjected to temperature, the sensing head produces a similar response for different curvature radius, with a sensitivity of 0.87pm/degrees C.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5