Title :
A Compact Fiber-Optic Flow Velocity Sensor Based on a Twin-Core Fiber Michelson Interferometer
Author :
Yuan, Libo ; Yang, Jun ; Liu, Zhihai
Author_Institution :
Sch. of Sci., Harbin Eng. Univ., Harbin
fDate :
7/1/2008 12:00:00 AM
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 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.
Keywords :
Michelson interferometers; beams (structures); cantilevers; fibre optic sensors; flow sensors; velocity measurement; cylinder cantilever beam; fiber-optic flow velocity sensor; flowmeters; integrated Michelson interferometer; twin-core fiber Michelson interferometer; velocimetry; Arm; Fluid flow measurement; Force sensors; Optical fiber sensors; Optical fiber testing; Structural beams; Temperature dependence; Temperature measurement; Temperature sensors; Viscosity; Fiber-optics sensors; velocimetry;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2008.926873
