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Acoustic Transducer of Turbulent Pressure Fluctuations in a Temperature-Stratified Medium
Authors:Email author" target="_blank">E?B?KudashevEmail author  L?R?Yablonik  Jian-hua?Liu
Institution:1.Space Research Institute,Russian Academy of Sciences,Moscow,Russia;2.Joint-Stock Company “I.I. Polzunov Scientific and Development Association on Research and Design of Power Equipment”,St. Petersburg,Russia;3.China Ship Scientific Research Center,Wuxi, Jiangsu,China
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.
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