作　　者： ; ; ; ;

机构地区： 华南理工大学建筑学院

出　　处： 《振动与冲击》 2013年第21期65-68,111,共5页

摘　　要： 声强技术不仅可应用在声源声功率测量和噪声源识别,还可用于建筑和建筑构件隔声测量。首先介绍了测量空气声隔声量的声强法,然后结合我国绿色建筑标准中的声环境评价,指出建筑及建筑构件隔声的声强法测量技术在绿色建筑评价中的应用前景,并讨论了测量方法的精密度估计。着重介绍在实验室内分别应用声压法和声强法对四组构件的空气声隔声量的测量工作。实验结果显示,声强法与声压法测得的隔声量在整个测量频率范围内基本一致,但在低频段个别频率上存在一定偏差,对实验结果进行了精密度估计和偏差原因分析。 The sound intensity technique not only can be applied to the sound power measurement and of noise source identification but also to the sound insulation in buildings and between building elements. The progress of in the sound insulation measurement by using sound intensity technique was introduced, and then the prospect of the sound intensity method was pointed out in accordance with the requirement national standard for evaluating green building, and its estimated precision was discussed. The airborne sound insulations of four specimens were measured by using the methods of both sound pressure and sound intensity in laboratory. The experiments show that the two methods can get the same result in the whole frequency range basically, but deviation exists in the specific low frequency band. The estimated precision and the cause of deviation were analyzed.

关 键 词： 空气声隔声 声强 声压 绿色建筑

领　　域： [建筑科学]