Optical measurement of interface movements of liquid metal excited by a pneumatic shaker

Shouqiang Men; Jun Zhou; Jingwen Xu

doi:10.1117/12.2075950

19 February 2015 Optical measurement of interface movements of liquid metal excited by a pneumatic shaker

Shouqiang Men, Jun Zhou, Jingwen Xu

Proceedings Volume 9449, The International Conference on Photonics and Optical Engineering (icPOE 2014); 94492W (2015) https://doi.org/10.1117/12.2075950
Event: The International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference (icPOE 2014), 2014, Xi'an, China

Abstract

A model experiment was designed, and Faraday instabilities were generated in a plexiglass cylinder excited by a pneumatic shaker. A contacting distance meter and a single-point fiber-optic vibrometer were applied to measure the displacement/velocity of the shaker, both of the results are in good agreement with each other. Besides, the fibre-optic laser vibrometer was exploited to measure the velocity of the interface between potassium hydroxide aqueous solution and Galinstan. It shows that the fibre-optic vibrometer can be applied to measure the interface movements without Faraday instabilities, whereas there are strong scatter and the interface displacement can only be obtained qualitatively. In this case, a scanning vibrometer or a high-speed CCD camera should be used to record the interface movements.

Citation Download Citation

Shouqiang Men, Jun Zhou, and Jingwen Xu "Optical measurement of interface movements of liquid metal excited by a pneumatic shaker", Proc. SPIE 9449, The International Conference on Photonics and Optical Engineering (icPOE 2014), 94492W (19 February 2015); https://doi.org/10.1117/12.2075950

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