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Proceedings Paper

Fiber optic flowmeter based on distributed feedback fiber laser
Author(s): Wentao Zhang; Feng Li; Hongbin Xu; Wenzhu Huang; Fang Li
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Paper Abstract

This paper presents a novel fiber flowmeter based on distributed feedback fiber laser (DFB-FL). The DFB-FL is encapsulated in a PU tube which is put in the center of the flow pipe. When the flow speed changes, the flow induced pressure turbulence on the surface of the PU tube will change correspondingly. This pressure fluctuation is demodulated using phase-generated-carrier (PGC) method. The test result shows that the sensitivity of the fiber laser flowmeter is about 8×10-3 pm/(m3/h). A resolution of 1.25×10-4 m3/h is achieved.

Paper Details

Date Published: 1 July 2015
PDF: 4 pages
Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96550W (1 July 2015); doi: 10.1117/12.2185363
Show Author Affiliations
Wentao Zhang, Institute of Semiconductors (China)
Feng Li, Institute of Semiconductors (China)
Hongbin Xu, Institute of Semiconductors (China)
Wenzhu Huang, Institute of Semiconductors (China)
Fang Li, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 9655:
Fifth Asia-Pacific Optical Sensors Conference
Byoungho Lee; Sang-Bae Lee; Yunjiang Rao, Editor(s)

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