集成技术2025，Vol.14Issue(3)：145-152,8.DOI:10.12146/j.issn.2095-3135.20241205001
20 MPa高压消声舱声场特性实验研究
The Experimental Research of Acoustic Field Characteristics in 20 MPa High Pressure Anechoic Water Tank
摘要
Abstract
The high-pressure anechoic water tank is an important experimental testing platform for the development of deep-sea transducers,sensors,and other acoustic instruments and equipment.In this paper,background noise and acoustic field fluctuations at different frequencies were measured for the homemade 20 MPa high-pressure anechoic tank.The echo interference level under fixed measurement position and distance conditions was calculated,and the echo interference curve was drawn.The time-frequency characteristics of signals under typical low-frequency and high-frequency conditions were analysed.The measurement results of background noise show that although the background noise inside the tank is relatively high and has characteristic peaks in the frequency range of 10-12 kHz,it allows for measurement experiments with sufficient signal-to-noise ratio conditions.Meanwhile,the time-domain waveform results of sound field fluctuations measured in different frequencies show that the signal amplitude rapidly decays after a transmission width of 2 ms,and the higher the frequency,the faster the attenuation,indicating that the sound absorption cone inside the tank has a good sound absorption effect.The calculation results of echo interference level show that most frequency points above 10 kHz do not exceed±1 dB.The designed fixed measurement position meets the requirements of free field testing,especially the echo interference of frequency points such as 20 kHz,28 kHz,and 34 kHz does not exceed±0.5 dB,which meets the requirements of precision measurement.关键词
深海/高压舱/消声水池/声场特性Key words
deep sea/high pressure tank/anechoic water tank/acoustic field characteristics分类
海洋科学引用本文复制引用
郑江龙,江彪,李志锋,黄晓鑫,李林伟,黄逸凡..20 MPa高压消声舱声场特性实验研究[J].集成技术,2025,14(3):145-152,8.基金项目
深圳市科技研发资金项目(JCYJ20220818101609021) （JCYJ20220818101609021）
广东省科技厅重点研发计划项目(2023B1111050015) （2023B1111050015）
国家自然科学基金项目(12404546) （12404546）
福建省海洋物理与地质过程重点实验室开放基金项目(KLMPG-22-04) （KLMPG-22-04）
国家重点研发计划项目(2024YFC2814902) This work is supported by Shenzhen Science and Technology Innovation Commission Project(JCYJ20220818101609021) （2024YFC2814902）
Key Research and Development Program of Guangdong Provincial Science Technology Department(2023B1111050015) （2023B1111050015）
National Natural Science Foundation of China Program(12404546) （12404546）
Fujian Provincial Key Laboratory of Marine Physical and Geological Processes(KLMPG-22-04) （KLMPG-22-04）
National Key Research and Development Program of China(2024YFC2814902) （2024YFC2814902）
