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Proceedings Paper

Fiber optic flow velocity sensor based on an in-fiber integrated Michelson interferometer
Author(s): Libo Yuan; Jun Yang; Zhihai Liu
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Paper Abstract

A novel fiber optic flow velocity sensor based on a twin-core fiber Michelson interferometer has been proposed and demonstrated. The sensor only is a segment of twin-core fiber acting as cylinder cantilever beam. The force exerted on the cylinder by the flow of a fluid with unknown velocity bends the fiber, which corresponding to the shift of the phase of the twin-core in-fiber integrated Michelson interferometer. This twin-core fiber sensing technique could automatically compensate the variation of environmental temperature and pressure due to both arms of the interferometer would be affected equally by such changes.

Paper Details

Date Published: 16 May 2008
PDF: 4 pages
Proc. SPIE 7004, 19th International Conference on Optical Fibre Sensors, 70043E (16 May 2008); doi: 10.1117/12.785216
Show Author Affiliations
Libo Yuan, Harbin Engineering Univ. (China)
Jun Yang, Harbin Engineering Univ. (China)
Zhihai Liu, Harbin Engineering Univ. (China)

Published in SPIE Proceedings Vol. 7004:
19th International Conference on Optical Fibre Sensors

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