Acoustic Transducer of Turbulent Pressure Fluctuations in a Temperature-Stratified Medium


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Abstract

The operation of an acoustic transducer in a temperature-stratified medium is investigated. The formation of a response of piezoceramic transducers of pressure fluctuations under the action of temperature fluctuations in a working medium on the sensor element is considered. The attenuation of the temperature signal of a pressure transducer in a turbulent boundary layer is calculated numerically. The effect of distortions of the spectral levels of pressure fluctuations detected by a sound transducer in the field of temperature inhomogeneities is investigated for the example of measurements of turbulent pressure fluctuations in a boundary layer during vertical ascent of the device to the surface from a specified depth in a deep sea.

About the authors

E. B. Kudashev

Space Research Institute

Author for correspondence.
Email: kudashev@iki.rssi.ru
Russian Federation, Moscow, 117997

L. R. Yablonik

Joint-Stock Company “I.I. Polzunov Scientific and Development Association on Research and Design of Power Equipment”

Email: kudashev@iki.rssi.ru
Russian Federation, St. Petersburg, 191167

Jian-hua Liu

China Ship Scientific Research Center

Email: kudashev@iki.rssi.ru
China, Wuxi, Jiangsu, 214082

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