Title :
Vortex shedding fluid flowmeter using optical fibre sensor
Author :
Lyle, J.H. ; Pitt, C.W.
Author_Institution :
University College London, Department of Electronic & Electrical Engineering, London, UK
Abstract :
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.
Keywords :
fibre optics; flowmeters; nonelectric sensing devices; phase modulation; fibredyne technique; optical carrier; optical fibre sensors; phase modulation; vibration frequency; vortex shedding fluid flowmeter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19810173
