Fiber optic probe for local void fraction measurements in bubbly flows

Chien-Hsun Lee; Ching-Jer Huang; Wuu-Wen Lin

doi:10.1117/12.738403

2 July 2007 Fiber optic probe for local void fraction measurements in bubbly flows

Chien-Hsun Lee, Ching-Jer Huang, Wuu-Wen Lin

Proceedings Volume 6619, Third European Workshop on Optical Fibre Sensors; 66190P (2007) https://doi.org/10.1117/12.738403
Event: Third European Workshop on Optical Fibre Sensors, 2007, Napoli, Italy

Abstract

A technique based on Fresnel reflection at the tip of a fiber optic probe is used to investigate local void fractions in bubbly flows. The fiber optic system with multiplexing scheme is designed for demonstrating the feasibility of measuring local void fractions in bubbly flows. Processing the signal acquired from the fiber optic system, local void fractions can be obtained. Linear regression with least square method is applied to analyze data. The correlation coefficient of 0.94 indicates that the technique seems to be suited for measuring local void fractions in the range from 2% to 20%.

Citation Download Citation

Chien-Hsun Lee, Ching-Jer Huang, and Wuu-Wen Lin "Fiber optic probe for local void fraction measurements in bubbly flows", Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66190P (2 July 2007); https://doi.org/10.1117/12.738403

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