Electronic Journal Technical Acoustics ISSN 1819-2408

S. Reuka

Features of ultrasonic pulse propagation in a liquid stream waveguide with combined boundary conditions

language: Russian

received 03.03.2008, published 26.03.2008

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ABSTRACT

The propagation of ultrasonic pulse through combined liquid stream waveguide is described. The waveguide is introduced as a sequence “damping camera - stream-forming device - liquid stream”. The problem of generation and transformation of the acoustic modes at points of boundary conditions changing is solved. The distortion of the pulse due to the modes dispersion is calculated. The way of reduction of the distortion is introduced.

Key words: ultrasound, stream waveguide, irregular waveguide, acoustic modes, dispersion.

9 pages, 3 figures

Сitation: S. Reuka. Features of ultrasonic pulse propagation in a liquid stream waveguide with combined boundary conditions. Electronic Journal “Technical Acoustics”, http://www.ejta.org, 2008, 5.

REFERENCES

1. Голубев А. С., Паврос С. К. Акустическое поле искателей ультразвуковых дефектоскопов // ЛЭТИ. Л., 1975. 94 с.
2. Ржевкин С. Н. Курс лекций по теории звука. М.: Изд-во моск. ун-та, 1960. 336 с.
3. Лепендин Л. Ф. Акустика. М.: Высш. шк., 1978. 448 с.

Sergey Reuka is a post-graduate of electroacoustics and ultrasonic department at the Saint-Petersburg State Electrotechnical University, leading expert at US-Constanta Ltd. General scientific interests: guided waves, ultrasonic transducers. e-mail: ayo(at)list.ru