【摘 要】
：
A model experiment was designed,and Faraday instabilities were generated in a plexiglass cylinder excited by a pneumatic shaker.A contacting distance meter
【机 构】
：
Xi'an Technological University,China
【出 处】
：
2014年光子与光学工程国际会议暨西部光子学学术会议
论文部分内容阅读
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 Laser fiber-optic vibrometer were applied to measure the displacement/velocity of the base/shaker,both of the results are in good agreement with each other.Besides,the fibre-optic 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 only precise vibrating frequency of the interface movement can be obtained and its displacement is only qualitatively agreement with the measurement result by CCD camera due to strong scatters at the interface.In this case,the single-point Laser vibrometer should be used to together with the CCD camera so as to obtain the complete information of the interface movements.
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