Fiber Bragg grating cantilever sensor system for fluid flow monitoring with temperature compensation

Ping Lu; Qiying Chen

doi:10.1117/12.886059

18 May 2011 Fiber Bragg grating cantilever sensor system for fluid flow monitoring with temperature compensation

Ping Lu, Qiying Chen

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77538L (2011) https://doi.org/10.1117/12.886059
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

A fiber-optic sensor system based on fiber Bragg gratings (FBGs) is proposed and demonstrated to realize water flow measurement with temperature compensation capability. For the FBG cantilever sensor as the key component of the sensor system, a change in the water flow rate gives rise to a monotonic shift in the Bragg wavelength of the grating while the flow direction results in either a redshift or blueshift in the Bragg wavelength due to a stretched or shrunk state of the grating. The resolutions of the sensor system for the forward and backward flow measurement are 58.1 and 166.7 cm3/s, respectively.

Citation Download Citation

Ping Lu and Qiying Chen "Fiber Bragg grating cantilever sensor system for fluid flow monitoring with temperature compensation", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77538L (18 May 2011); https://doi.org/10.1117/12.886059

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