| 基于虚拟仪器的声脉冲法隔声测试技术研究 |
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| 引用本文： | 李吉,何湘.基于虚拟仪器的声脉冲法隔声测试技术研究[J].电声技术,2010,34(7):41-43. |
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| 作者姓名： | 李吉 何湘 |
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| 作者单位： | 大连大学,振动噪声研究所,辽宁,大连,116622 |
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| 摘 要： | 针对声脉冲法隔声测试的需要，基于虚拟器技术构建了隔声测试系统，并对一块五合板试件的隔声量进行了实际测试以验证系统的可靠性。结果表明，4000Hz以下的频段，测试值与理论值吻合得较好。误差在5dB以内。该方法节约了测试成本，可实现非消声室环境下对结构隔声量的测量，对噪声控制工程具有一定实用价值。
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| 关 键 词： | 声脉冲 虚拟仪器 隔声测试 |
Study on Sound Impulse Insulation Test Based on Virtual Instrument |
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| LI Ji,HE Xiang.Study on Sound Impulse Insulation Test Based on Virtual Instrument[J].Audio Engineering,2010,34(7):41-43. |
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| Authors: | LI Ji HE Xiang |
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| Institution: | (Noise and Vibration Institute, Dalian University, Dalian Liaoning 116622, China) |
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| Abstract: | A sound impulse insulation test system based on virtual instrument technology is designed, and a experiment with a five-lay board is taken to validate the reliability of the system. The result shows that the test TL value consists with that of calculated theoretical TL value very well below 4 000 Hz. This system can realize sound insulation test without dead room environment, and reduce the testing cost. It is of certain practical value in noise control engineering. |
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| Keywords: | sound impulse virtual instrument sound insulation test |
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