脉冲法测量空气声隔声的多通道置换校正

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (13) : 13-16.

论文

脉冲法测量空气声隔声的多通道置换校正

蔡阳生,赵越喆;,吴硕贤

作者信息 +

The Multi Channel-Exchanged Correction for Measuring Airborne Sound Insulation by Impulse Response Method

CAI Yang-sheng ZHAO Yue-zhe; WU Shuo-xian

Author information +

文章历史 +

摘要

首先介绍利用脉冲法测量构件空气声隔声量的原理。利用多通道测量系统根据脉冲法进行空气声隔声量测量时需保证各通道响应的一致性。本文提出一种通过置换声源室和接收室的测量通道，以校正通道间的响应差异，得到可靠的测量结果的方法。通过验证实验表明了该方法的有效性。该方法降低了对测量设备的要求，对利用脉冲法测量空气声隔声技术的推广和应用具有重要参考价值。

Abstract

The principle of measuring airborne sound insulation using impulse response with the multi-channel system is introduced. It is required to ensure the consistency of the channel response. And then a method is proposed to correct the sensitivity difference among the channels, in which the measurement channels in the sound source room and receiving room are exchanged to achieve a reliable result. The results of the experiments show that the channel-exchange method for correction is effective. This method minimizes the requirement for the measuring equipments, it is important to promote the national standards of measurement airborne sound insulation standards using impulse response.

导出引用

蔡阳生;赵越喆;吴硕贤. 脉冲法测量空气声隔声的多通道置换校正[J]. 振动与冲击, 2013, 32(13): 13-16

CAI Yang-sheng ZHAO Yue-zhe;WU Shuo-xian. The Multi Channel-Exchanged Correction for Measuring Airborne Sound Insulation by Impulse Response Method[J]. Journal of Vibration and Shock, 2013, 32(13): 13-16