The streaming vibration current (SVI) and the associated streaming vibration potential is an
electric signal that arises when an
acoustic wave
Acoustic waves are a type of energy propagation through a medium by means of adiabatic loading and unloading. Important quantities for describing acoustic waves are acoustic pressure, particle velocity, particle displacement and acoustic intensit ...
propagates through a porous body in which the pores are filled with fluid.
Streaming vibration current was experimentally observed in 1948 by M. Williams.
A theoretical model was developed some 30 years later by Dukhin and coworkers.
This effect opens another possibility for characterizing the electric properties of the surfaces in porous bodies.
See also
*
Interface and colloid science
References
Chemical mixtures
Colloidal chemistry
Soft matter
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