空调低频噪声品质评价研究

Study on quality evaluation of low-frequency noise of air conditioner

在评价空调机组的噪声时,A声级只是评价了噪声的大小,但是不能客观反映低频噪声污染的程度。本文在分析国内外低频噪声评价指标的基础上,提出使用NR曲线方法评价空调机组低频噪声的品质,该方法可以客观反映空调机组运行时的低频噪声污染情况,为产品改进提出重要的依据。

When evaluating the noise of air conditioner uint, the A-weighted sound lev- el can only test the level of the noise, but can not reflect the low-frequency noise pollution degree objectively. A method using NR curve to evaluate the low-frequency noise quality of air conditioner unit is explored, on the basis of analyzing evaluation index of low-fre- quency noise at home and abroad. By using this evaluation method, the low-frequency noise pollution condition can be reflected objectively when the air conditioner units are running, which provides important references for improving the products.