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Janus-Helmholtz水声换能器理论问题研究

DOI: 10.3969/j.issn.1006-7043.201411034

Keywords: Janus-Helmholtz换能器, 等效电路, 宽带, 互辐射, 声源级

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Abstract:

为了解决Janus-Helmholtz水声换能器研究中的理论问题,通过互辐射模型时的Janus-Helmholtz水声换能器等效电路,分析了Janus换能器纵振动谐振频率在水中升高的原因;通过对Janus换能器纵振动和液腔振动的相频曲线的分析,得出了Janus-Helmholtz水声换能器宽带发射的机理,研究了腔体弹性对Helmholtz声学性能的影响规律。设计了工作频段为1~3 kHz的Janus-Helmholtz换能器试验样机,样机的测试结果表明其振动及声学特性与理论研究结果相符。

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