论文信息 - Monomode fibre optic interferometric techniques in flow velocity measurement

Monomode fibre optic interferometric techniques in flow velocity measurement

Abstract The use of a monomode optical fibre sensing element in the measurement of flow velocities by an interferometric technique is described, in which the operating principle is the flow induced oscillation of the fibre caused by vortex shedding. A design based on an all-fibre Michelson interferometer is described and compared with a Fibre Fabry–Perot design; these both show a linear response with flow velocity over a large Reynolds number range.

[1] D. Tritton,et al. Physical Fluid Dynamics , 1977 .

[2] T. Giallorenzi,et al. Optical fiber sensor technology , 1982, 1985 International Electron Devices Meeting.

[3] S. A. Kingsley,et al. Multimode optical-fibre phase modulators and discriminators: I-theory , 1978 .

[4] S. Lacroix,et al. Analyse d'un coupleur bidirectionnel a fibres optiques monomodes fusionnees. , 1983, Applied optics.

[5] David A. Jackson,et al. A simple fibre Fabry-Perot sensor , 1983 .

[6] C. W. Pitt,et al. Vortex shedding fluid flowmeter using optical fibre sensor , 1981 .

[7] Anthony Dandridge,et al. Elimination of drift in a single-mode optical fiber interferometer using a piezoelectrically stretched coiled fiber. , 1980, Applied optics.

[8] E. Achenbach,et al. On vortex shedding from smooth and rough cylinders in the range of Reynolds numbers 6×103 to 5×106 , 1981, Journal of Fluid Mechanics.

[9] A. Kersey,et al. All-fibre 'michelson' thermometer , 1983 .

[10] J. Jones,et al. Pseudoheterodyne detection scheme for optical interferometers , 1982 .

[11] A. Kersey,et al. Monomode fibre optic vortex shedding flowmeter , 1984 .