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Fiber-optic Fabry–Perot flow sensor

✍ Scribed by J. X. Fang; H. F. Taylor; H. S. Choi


Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
119 KB
Volume
18
Category
Article
ISSN
0895-2477

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✦ Synopsis


A new design of a ¨ortex-shedding flowmeter with a ( ) fiber-optic Fabry᎐Perot interferometer FFPI as the sensing element is described here to measure the liquid flow ¨elocity in a pipe. The flow ¨elocity is determined by measuring the frequency at which the reflected optical power from the FFPI is modulated. Experimentally, a linear dependence of optical modulation frequency on flow ¨elocity is obser¨ed o¨er the range from 0.14 to 3.0 mrs, in good agreement with theoretical prediction.


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