Title :
Intensity-modulated optical-fibre vortex-shedding flowmeter
Author :
Hisham Morshed, A. ; Irvine-Halliday, D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada
fDate :
4/1/1994 12:00:00 AM
Abstract :
Optical-fibre intensity sensing of fluid flow rate is achieved using single-mode fibre tapers to detect the shedding frequency in a vortex-shedding flowmeter. Single-mode fibre tapers are characterized by their transmission versus bending at 1.3 μm and modelled using local normal modes and modal coupling techniques. A prototype vortex-shedding flowmeter is realized with the fibre taper acting as a secondary sensing strut.
Keywords :
fibre optic sensors; flowmeters; optical modulation; vortices; bending; fluid flow rate; intensity modulation; local normal modes; modal coupling; optical-fibre intensity sensing; secondary sensing strut; shedding frequency; single-mode fibre tapers; transmission; vortex-shedding flowmeter; Fluids; Optical fiber sensors; Optical fibers; Optical vortices;
Journal_Title :
Electrical and Computer Engineering, Canadian Journal of
DOI :
10.1109/CJECE.1994.6592072
