(微信(xin))
微(wei)穿(chuan)孔(kong)板(ban)消(xiao)(xiao)聲(sheng)器(qi)是利用(yong)微(wei)穿(chuan)孔(kong)板(ban)吸(xi)(xi)聲(sheng)結構制(zhi)成(cheng)的(de)(de)一種新型(xing)消(xiao)(xiao)聲(sheng)器(qi)。不用(yong)任何多(duo)孔(kong)吸(xi)(xi)聲(sheng)材料,只在(zai)(zai)(zai)厚(hou)度小于1mm的(de)(de)薄金屬板(ban)上鉆許多(duo)微(wei)孔(kong),這些微(wei)孔(kong)的(de)(de)孔(kong)徑一般為0.5~1mm左右(you),穿(chuan)孔(kong)率在(zai)(zai)(zai)1%~3%之間,在(zai)(zai)(zai)穿(chuan)孔(kong)板(ban)后留(liu)有一定(ding)的(de)(de)空腔,就成(cheng)為微(wei)穿(chuan)孔(kong)板(ban)吸(xi)(xi)聲(sheng)結構。微(wei)穿(chuan)孔(kong)板(ban)是高(gao)聲(sheng)阻、低聲(sheng)質量的(de)(de)吸(xi)(xi)聲(sheng)元件。