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| Research Progress on Typical Parameters Testing Techniques for Acoustic Properties of Materials |
| Received:March 21, 2020 Revised:April 15, 2020 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2020.08.021 |
| KeyWord:sound absorption coefficient sound insulation impedance tube reverberation chamber reverberation chamber-Anechoic chamber, Alpha cabin |
| Author | Institution |
| ZHANG Fu-lin |
Southwest Technology and Engineering Research Institute, Chongqing |
| DONG Ling-shu |
Southwest Technology and Engineering Research Institute, Chongqing |
| LI Zhong-sheng |
Southwest Technology and Engineering Research Institute, Chongqing |
| SUN Cai-yun |
Southwest Technology and Engineering Research Institute, Chongqing |
| HUANG An-wei |
Southwest Technology and Engineering Research Institute, Chongqing |
| NIE Jia-xing |
Southwest Technology and Engineering Research Institute, Chongqing |
| SHU Lu |
Southwest Technology and Engineering Research Institute, Chongqing |
| WU Yong-peng |
Southwest Technology and Engineering Research Institute, Chongqing |
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| Abstract: |
| Absorption coefficient and sound insulation are typical parameters of acoustic properties of materials. Firstly, the significance of absorption coefficient and sound insulation testing techniques was analyzed, which pointed out that the improvement of sound absorption coefficient and sound insulation testing techniques met the development demand of advanced weapon equipment in China. Then, the main laboratory test methods and standards of absorption coefficient and sound insulation at home and abroad were combed. The impedance tube method, reverberation chamber method and Alpha cabins method for measuring sound absorption were introduced in detail and the research progress on impedance tube method, reverberation chamber method, reverberation chamber-Anechoic chamber method and Alpha cabin for measuring sound insulation were also analyzed and the advantages and disadvantages of various testing methods were analyzed. Finally, the development trend of this field was prospected. |
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