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Focusing ultrasonic radiators with electrically controlled spatial and time structures of the generated fields

Focusing ultrasonic radiators with electrically controlled spatial and time structures of the... Acoustical Physics, Vol. 46, No. 4, 2000, pp. 488–490. Translated from AkusticheskiÏ Zhurnal, Vol. 46, No. 4, 2000, pp. 560–562. Original Russian Text Copyright © 2000 by Gladilin, Dogadov. SHORT COMMUNICATIONS Focusing Ultrasonic Radiators with Electrically Controlled Spatial and Time Structures of the Generated Fields A. V. Gladilin and A. A. Dogadov Andreev Acoustics Institute, Russian Academy of Sciences, ul. Shvernika 4, Moscow, 117036 Russia e-mail: hfus@mail.ru Received December 30, 1999 To obtain focused ultrasound in the megahertz fre- and inner surfaces with different parameters, which quency range, the usual practice is to employ radiators depend on the required range of the focal area displace- with the active element in the form of a spherically con- ment. cave, polarized piezoceramic plate [1–3]. The structure The acoustic field generated by a radiator with EC of acoustic fields generated by such radiators is deter- STS is calculated by using the Rayleigh integral [3]; the mined by the distribution of the particle velocity over variation of the particle velocity and the acoustic pres- the radiating surface of the piezoelectric plate and by sure with time is determined by the factor exp(Ðiw t), the structural characteristics of the latter. In the cited where http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acoustical Physics Springer Journals

Focusing ultrasonic radiators with electrically controlled spatial and time structures of the generated fields

Gladilin, A. V.; Dogadov, A. A.
Acoustical Physics , Volume 46 (4): 3 – Jul 1, 2000
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References (5)

Publisher
Springer Journals
Copyright
2000 MAIK "Nauka/Interperiodica"
ISSN
1063-7710
eISSN
1562-6865
DOI
10.1134/1.29914
Publisher site
See Article on Publisher Site

Abstract

Acoustical Physics, Vol. 46, No. 4, 2000, pp. 488–490. Translated from AkusticheskiÏ Zhurnal, Vol. 46, No. 4, 2000, pp. 560–562. Original Russian Text Copyright © 2000 by Gladilin, Dogadov. SHORT COMMUNICATIONS Focusing Ultrasonic Radiators with Electrically Controlled Spatial and Time Structures of the Generated Fields A. V. Gladilin and A. A. Dogadov Andreev Acoustics Institute, Russian Academy of Sciences, ul. Shvernika 4, Moscow, 117036 Russia e-mail: hfus@mail.ru Received December 30, 1999 To obtain focused ultrasound in the megahertz fre- and inner surfaces with different parameters, which quency range, the usual practice is to employ radiators depend on the required range of the focal area displace- with the active element in the form of a spherically con- ment. cave, polarized piezoceramic plate [1–3]. The structure The acoustic field generated by a radiator with EC of acoustic fields generated by such radiators is deter- STS is calculated by using the Rayleigh integral [3]; the mined by the distribution of the particle velocity over variation of the particle velocity and the acoustic pres- the radiating surface of the piezoelectric plate and by sure with time is determined by the factor exp(Ðiw t), the structural characteristics of the latter. In the cited where

Journal

Acoustical Physics – Springer Journals

Published: Jul 1, 2000

Keywords: Acoustics

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