Streaming vibration current

{{Short description|Electric signal phenomenon}}

The streaming vibration current (SVI) and the associated streaming vibration potential is an electric signal that arises when an acoustic wave propagates through a porous body in which the pores are filled with fluid.

Streaming vibration current was experimentally observed in 1948 by M. Williams.{{cite journal | last=Williams | first=Milton | title=An Electrokinetic Transducer | journal=Review of Scientific Instruments | publisher=AIP Publishing | volume=19 | issue=10 | year=1948 | issn=0034-6748 | doi=10.1063/1.1741068 | pages=640–646 | pmid=18888189}} A theoretical model was developed some 30 years later by Dukhin and coworkers.{{cite journal | last1 = Dukhin | first1 = S.S. | last2 = Mischuk | first2 = N.A. | last3 = Kuz'Menko | first3 = B.B | last4 = Il'In | first4 = B.I. | year = 1983 | title = Flow current and potential in a high-frequency acoustic field | journal = Colloid J. | volume = 45 | issue = 5| pages = 875–881 }} This effect opens another possibility for characterizing the electric properties of the surfaces in porous bodies.