- Electric sonic amplitude
Electric sonic amplitude is an
electroacoustic phenomena that is reverse tocolloid vibration current . It occurs incolloids ,emulsions and otherheterogeneous fluids under influence ofoscillating electric field . This field moves particles relative to the liquid, which generatesultrasound .Electric sonic amplitude was experimentally discovered by Oja with co-authors in early 1980’s. [Oja, T., Petersen, G., and Cannon, D. “Measurement of Electric-Kinetic Properties of a Solution”, US Patent 4,497,208,1985] It is also widely used for characterizing ζ-potential in dispersions and emulsions. There is review of this effect theory, experimental verification and multiple applications published by Hunter. [Hunter, R.J. “Review. Recent developments in the electroacoustic characterization of colloidal suspensions and emulsions”, Colloids and Surfaces, 141, 37-65, 1998]
References
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Interface and Colloid Science
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