Journal
IEEE SENSORS JOURNAL
Volume 8, Issue 7-8, Pages 1114-1117Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2008.926873
Keywords
fiber-optics sensors; velocimetry
Funding
- National Natural Science Foundation of China [60577005]
- Specialized Research Fund for the Doctoral Program of Higher Education Institute of MOE, China
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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 slow flow speeds of order mm/s of the fluid with unknown velocity bends the fiber, which corresponds to the shift of the phase of the twin-core in-fiber integrated Michelson interferometer.
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