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

被引：1

作者：

Kudashev, E. B. ^{[1
]}

Yablonik, L. R. ^{[2
]}

Liu, Jian-hua ^{[3
]}

机构：

[1] Russian Acad Sci, Space Res Inst, Moscow 117997, Russia

[2] Joint Stock Co II Polzunov Sci & Dev Assoc Res &, St Petersburg 191167, Russia

[3] China Ship Sci Res Ctr, Wuxi 214082, Jiangsu, Peoples R China

来源：

ACOUSTICAL PHYSICS | 2018年 / 64卷 / 01期

关键词：

turbulent boundary layer; pressure fluctuations; temperature-stratified medium; acoustic transducer; pyroelectric effect; FLOW NOISE;

D O I：

10.1134/S1063771018010116

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

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.

引用

页码：99 / 104

页数：6

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