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微穿(chuan)孔(kong)板消聲(sheng)器(qi)是利用微穿(chuan)孔(kong)板吸(xi)聲(sheng)結構(gou)制成(cheng)的(de)(de)一種新(xin)型消聲(sheng)器(qi)。不用任何多孔(kong)吸(xi)聲(sheng)材料,只(zhi)在厚度(du)小于1mm的(de)(de)薄金屬板上鉆許多微孔(kong),這些(xie)微孔(kong)的(de)(de)孔(kong)徑一般為0.5~1mm左右,穿(chuan)孔(kong)率(lv)在1%~3%之間,在穿(chuan)孔(kong)板后留有一定的(de)(de)空(kong)腔,就(jiu)成(cheng)為微穿(chuan)孔(kong)板吸(xi)聲(sheng)結構(gou)。微穿(chuan)孔(kong)板是高聲(sheng)阻、低聲(sheng)質量的(de)(de)吸(xi)聲(sheng)元件。