一种降低高静水压下水声换能器校准频率的方法
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摘要
本文设计了一种高压透声容器,将其放置在50 m×15 m×10 m常压中低频消声水池中,插入损失不大于1.0 d B。该容器透声性能好,耐静水压力可达10MPa以上。其工作频率范围为200 Hz~2000 Hz,与高压消声水罐的最低频端校准频率2000Hz衔接,有效拓展并完善了目前高静水压下水声换能器的校准条件。
This paper design a sound-permeable container that can bear high hydrostatic pressure, put it in the low frequency and anechoic pool which size is 50 m×15 m×10 m, it's insertion loss less than 1.0 d B. This container has a good performance on through sound, and can bear high hydrostatic pressure more than 10 MPa. It's operating frequency range is 200 Hz ~ 2000 Hz, that can linked up with the lowest calibration frequency 2000 Hz of high hydrostatic pressure and anechoic water tank, it also expands and improves the conditions in effect that transducer calibration under high hydrostatic pressure at present.
引文
[1]郑进鸿.GB/T 7965-2002声学水声换能器测量[S].北京:中国标准出版社,2002.
    [2]ZHENG Jin-hong.GB/T 7965-2002 Acoustics Measurement of Transducer[S].Bei Jing:Standards Press of China,2002.
    [3]郑士杰,袁文俊等.水声计量测试技术[M].哈尔滨:哈尔滨工程大学出版社,1995.
    [4]ZHENG Shi-jie,YUAN Wen-jun.Underwater acoustic measurement and testing technology[M].Harbin:Harbin Engineering University Press,1995.

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