宇航计测技术

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基于传递矩阵和宽频脉冲声的水声材料声学参数测量方法

王少博1   

  1. 1、杭州应用声学研究所,杭州 311400
  • 出版日期:2014-10-15 发布日期:2014-10-15

Acoustic Parameters Measurement of Underwater Acoustic Materials based on Transfermatrix and Wide Frequency Impulse Method

WANG Shao-bo1   

  1. 1、Hangzhou Applied Acoustics Research Institute,Hangzhou 311400
  • Online:2014-10-15 Published:2014-10-15

摘要: 本文提出利用传递矩阵和宽频脉冲分离法结合的方式,对水声材料的纵波声速和衰减系数进行了测试。介绍了使用收发合置换能器的测量方法、宽频脉冲信号的产生和测量结果,完成了测量不确定度分析。

关键词: 宽频脉冲, 传递矩阵, 声学参数, 水声材料

Abstract: This paper presents the material longitudinal wave velocity and attenuation coefficient measurement of underwater acoustic materials using transfer-matrix calculation plus impulse method. Describes the method using monostatic transducer, broadband impulse signal generation and sample measurement results. Completed the measurement uncertainty analysis.

Key words: Wide frequency impulse, Transfer-matrix, Acoustics parameters, Underwater acoustic materials