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阐述了一种新的水声构件材料动态切变模量测量方法，该方法利用宽带参量声源、精密坐标装置和信号处理技术，在小型消声水槽中可以准确测量频率范围２０～１００ｋＨｚ、典型尺寸５００×５００ｍｍ２材料样品的动态切变模量。文中先后介绍了测量基本原理、实验装置，给出并分析了测量结果。
A new method for measuring the dynamic shear modulus of underwater acoustic components is presented. The method can measure the frequency range from 20 kHz to 100 kHz accurately in a small muffler tank by using wide-band parametric sound source, precision coordinate system and signal processing technology. Dynamic Shear Modulus of a 500 × 500 mm2 Material Sample. The article has introduced the basic principle of measurement, experimental device, given and analyzed the measurement results.