Abstract
On the basis of theoretical results describing the propagation of short acoustic pulses in relaxation media, the temporal characteristics of a signal that carry the information on the first five moments of the relaxation time spectrum (RTS) are determined. The measurement of these characteristics forms the basis of the proposed variant of pulsed acoustic spectroscopy of relaxation media. An experimental setup was developed in which short acoustic pulses were excited by a neodymium glass laser. Test measurements of RTS moments for an acetic acid, the liquid with a single relaxation time, are carried out.
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Translated from Akusticheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Zhurnal, Vol. 50, No. 4, 2004, pp. 476–480.
Original Russian Text Copyright © 2004 by P. Zozulya, O. Zozulya.
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Zozulya, P.V., Zozulya, O.M. Measurement of the moments of the relaxation time spectrum of a liquid by pulsed acoustic spectroscopy. Acoust. Phys. 50, 401–405 (2004). https://doi.org/10.1134/1.1776217
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DOI: https://doi.org/10.1134/1.1776217