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

作者：Kudashev, E. B.^*; Yablonik, L. R.; Liu, Jian-hua

来源：Acoustical Physics, 2018, 64(1): 99-104.

DOI：10.1134/S1063771018010116

• turbulent boundary layer
• pressure fluctuations
• temperature-stratified medium
• acoustic transducer
• pyroelectric effect

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.

• 出版日期2018-1
• 单位中国船舶科学研究中心