消声室中垂直反射面对噪声测试结果的影响研究

Study on the Influence of Vertical Reflecting Plane on Noise Test Results in Anechoic Chamber

按照相关噪声测试标准,一些家电产品需考虑实际使用情况,采用靠墙的方式来进行噪声声功率结果的测试。该方法要求在一个加装垂直反射面的半消声室内完成。本文通过理论分析和实验验证,研究六点靠墙法与十点半球法之间的理论误差,以及不同的垂直反射面对其测量结果的影响。

According to the relevant noise test standards,some household electrical appliances need to consider the actual use situation and adopt the method of leaning against the wall to test the noise sound power results.This method is required to be completed in a semi anechoic room equipped with vertical reflecting plane.Through theoretical analysis and experimental verification,this paper studies the error between the six point wall method and the ten point hemispherical method,and the influence of different vertical reflecting plane on its measurement accuracy.