Scattering of phase-conjugate ultrasonic waves by microinclusions in a liquid flow


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The paper presents the results of experimental and theoretical studies of processes of phase-conjugate ultrasonic wave propagation in a liquid flow containing gas microbubbles. It is shown that a signal from a phase-conjugate wave, which is recorded by a transceiving transducer, contains information on the flow velocity of scatterers and their concentration. In this case, the flow velocity is determined both in the presence and absence of moving scattering objects. A theory developed on the basis of the generalized reciprocity principle for a moving inhomogeneous medium represents the main experimentally observed features of the formation of signals from a phase-conjugate wave scattered by a disperse liquid flow.

Sobre autores

P. Shirkovskiy

Wave Research Center, Prokhorov General Physics Institute; Institute of Electronics

Email: preobr@newmail.ru
Rússia, ul. Vavilova 38, Moscow, 119991; Villeneuve d’Ascq Cedex, 59651

N. Smagin

Wave Research Center, Prokhorov General Physics Institute; Institute of Electronics

Email: preobr@newmail.ru
Rússia, ul. Vavilova 38, Moscow, 119991; Villeneuve d’Ascq Cedex, 59651

V. Preobrazhenskii

Wave Research Center, Prokhorov General Physics Institute; Institute of Electronics

Autor responsável pela correspondência
Email: preobr@newmail.ru
Rússia, ul. Vavilova 38, Moscow, 119991; Villeneuve d’Ascq Cedex, 59651

P. Pernod

Institute of Electronics

Email: preobr@newmail.ru
França, Villeneuve d’Ascq Cedex, 59651

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