A long period grating based directional flow sensor

Stephen J. Buggy; Stephen W. James; Ralph P. Tatam

doi:10.1117/12.786558

16 May 2008 A long period grating based directional flow sensor

Stephen J. Buggy, Stephen W. James, Ralph P. Tatam

Proceedings Volume 7004, 19th International Conference on Optical Fibre Sensors; 70045P (2008) https://doi.org/10.1117/12.786558
Event: 19th International Conference on Optical Fibre Sensors, 2008, Perth, WA, Australia

Abstract

A chirped long period grating (LPG) is used as a directional flow sensor by monitoring the change in the transmission spectrum upon immersion in an oil of refractive index higher than that of the fibre cladding. The change in profile of an attenuation band is shown to depend on the direction of immersion, indicating the possibility of using such devices in applications such as resin flow sensing in the manufacture of fibre reinforced plastic composite structures.

Citation Download Citation

Stephen J. Buggy, Stephen W. James, and Ralph P. Tatam "A long period grating based directional flow sensor", Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70045P (16 May 2008); https://doi.org/10.1117/12.786558

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