作　　者： ; ; ;

机构地区： 华南理工大学建筑学院亚热带建筑科学国家重点实验室

出　　处： 《振动与冲击》 2013年第13期13-16,共4页

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。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。 The principle of measuring airborne sound insulation based on impulse response with a multi-channel system was introduced.It was required to ensure the consistency of channel responses.And then a method was proposed to correct the response difference among channels.With it,the measurement channels in a sound source room and those in a receiving room were exchanged to achieve a reliable result.The test results showed that the channel-exchanged method for correction is effective;this method minimizes the requirements to measuring equipments;the results provide a reference for improving the national standards of measurement airborne sound insulation standards using impulse response.

关 键 词： 空气声隔声 脉冲法 校正 多通道

领　　域： [建筑科学]