Material sound absorption performance testing device and testing method
The invention discloses a material sound absorption performance testing device and testing method, which relate to the technical field of noise control. The device comprises a sound insulation cover and a test module, wherein the sound insulation cover comprises a semi-closed cover body with an open...
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| creator | ZHANG KEFENG DENG FENG CHEN JIANWU GU JUNQING DAO YINGMAO |
| description | The invention discloses a material sound absorption performance testing device and testing method, which relate to the technical field of noise control. The device comprises a sound insulation cover and a test module, wherein the sound insulation cover comprises a semi-closed cover body with an opening in the bottom, at least one pair of loudspeakers and a plurality of microphones are arranged inthe cover body, and at least one layer of sealing rubber strip is arranged at the bottom of the cover body; and the test module is connected with the sound insulation cover and comprises a data acquisition and analysis system, a power amplifier, a signal generator and a computer. The material sound absorption performance testing device provided by the invention can quickly obtain a testing result,is simple in structure, simple and easy to operate and high in testing efficiency, has no special requirements on a testing place and an operator, and has a relatively high practical value.
本发明公开了一种材料吸音性能测试装置及测试方法，涉及噪音控制技术领域， |
| format | Patent |
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本发明公开了一种材料吸音性能测试装置及测试方法，涉及噪音控制技术领域，</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | Material sound absorption performance testing device and testing method |
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