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Vortex shedding fluid flowmeter using optical fibre sensor

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2 Author(s)
J. H. Lyle ; University College London, Department of Electronic & Electrical Engineering, London, UK ; C. W. Pitt

An optical fibre flowmeter is described which uses a single fibre mounted transversely to the fluid flow within the pipe. The fibre is vibrated by the natural phenomenon of vortex shedding, causing phase modulation of the optical carrier within. The modulation is detected at the fibre exit by the fibredyne technique, and the flow rate determined from the vibration frequency.

Published in:

Electronics Letters  (Volume:17 ,  Issue: 6 )