棰�(f膿ng)姗�(j墨)鍣伈鐨勯牷璀滄槸寰�(f霉)鍚堣瓬锛屾槸钁夌墖閫氶亷(gu貌)闋荤巼鑸囧甯剁┖姘ｅ嫊(d貌ng)鍔涙€у櫔鑱叉垚鍒嗙殑杩姞銆傝憠鐗囬€氶亷(gu貌)闋荤巼鐢变笅寮忕⒑瀹氾細

fn=Nbn/60 璧�

寮忎腑锛� B-----钁夌墖鏁�(sh霉)

 N-----閫氶ⅷ(f膿ng)姗�(j墨)鐨勮綁(zhu菐n)鏁�(sh霉)锛岃綁(zhu菐n)/鍒�

 n-----璜ч煶搴忔暩(sh霉)锛歯=1(鍩洪牷)锛宯=2(绗簩璜� 闊�)

棰�(f膿ng)姗�(j墨)鍣伈鐨勮伈绱�(j铆)锛屼笉鍍呰垏鍏堕ⅷ(f膿ng)姗�(j墨)鐨勭祼(ji茅)妲�(g貌u)褰㈠紡鏈夐棞(gu膩n)锛岃€屼笖閭勫悓鍏跺伐浣滅媭鎱�(t脿i)(鐢卞叏澹撳拰棰�(f膿ng)閲忔焙瀹�)鏈夐棞(gu膩n)銆備笉鍚岀郴鍒�銆佷笉鍚屽瀷铏�(h脿o)鐨勯ⅷ(f膿ng)姗�(j墨)锛屽叾鑱茬礆(j铆)鏄笉涓€妯ｇ殑銆傚悓涓€棰�(f膿ng)姗�(j墨)锛屽湪涓嶅悓宸ユ硜涓�锛屽叾鑱茬礆(j铆)涔熸槸涓嶅悓鐨�銆傞ⅷ(f膿ng)姗�(j墨)宸ヤ綔鍦ㄦ渶楂樻晥鐜囬粸(di菐n)鏅�(sh铆)锛岃伈绱�(j铆)寰€寰€鍙栭噺浣庡€�銆�

鐐轰簡鏇村ソ琛ㄥ緛棰�(f膿ng)姗�(j墨)鐨勫櫔鑱叉€ц兘锛屽嚭鐝�(xi脿n)浜嗘瘮A 绱�(j铆)閫欏€�(g猫)姒傚康銆傛瘮A鑱茬礆(j铆)鏄寚閫氶ⅷ(f膿ng)姗�(j墨)鍦ㄥ柈浣嶆祦閲�(1 绫�/鍒�)鍜屽柈浣嶅叏澹�(1姣背姘存煴)涓嬫墍鐢�(ch菐n)鐢熺殑A鑱茬礆(j铆)銆傚悓涓€棰�(f膿ng)姗�(j墨)鍦ㄤ笉鍚屽伐娉佷笅鐨勬瘮A鑱茬礆(j铆)鏄笉鍚岀殑銆傚湪鏈€楂樻晥鐜囬粸(di菐n)涓�锛屾瘮A鑱茬礆(j铆)鍙栭噺浣庡€�銆備笉鍚岀郴鍒楃殑棰�(f膿ng)姗�(j墨)鍦ㄩ瀹氬伐娉佷笅鐨勬瘮A鑱茬礆(j铆)琛ㄥ緛浜嗚┎绯诲垪棰�(f膿ng)姗�(j墨)鍣伈绱�(j铆)鐨勯珮浣庡拰鐢�(ch菐n)鍝佽唱(zh矛)閲忕殑鍎�(y艒u)鍔ｃ€傛墍浠ョ洰鍓嶅湅(gu贸)鍏�(n猫i)澶栧閲囩敤姣擜鑱茬礆(j铆)浣滅偤棰�(f膿ng)姗�(j墨)鍣伈鐨勯檺鍊兼寚妯�(bi膩o)銆傚悓涓€绯诲垪涓嶅悓鍨嬭櫉(h脿o)鐨勯ⅷ(f膿ng)姗�(j墨)锛屽叾姣擜 鑱茬礆(j铆)澶ч珨鐩歌繎銆傞ⅷ(f膿ng)姗�(j墨)鍔犲伐绮惧害鎰堥珮锛屾埃鍕�(d貌ng)鎬ц兘鎰堝ソ锛屾瘮A鑱茬礆(j铆)鎰堜綆銆�

涓€鑸締(l谩i)瑾�(shu艒)锛屽墠鍚戣憠鐗囬洟蹇冮ⅷ(f膿ng)姗�(j墨)锛屽叾姣擜鑱茬礆(j铆)浣庝簬2dBA锛涘悗鍚戞澘鍨嬭憠鐗囬洟蹇冮€氶ⅷ(f膿ng)姗�(j墨)锛屼綆浜�30dBA姗�(j墨)缈煎瀷钁夌墖闆㈠績棰�(f膿ng)姗�(j墨)锛屼綆浜�25dBA锛涜桓娴侀€氶ⅷ(f膿ng)姗�(j墨)锛屼綆浜�38bBA銆傚湪涓嶅悓宸ユ硜涓嬶紝閫氶ⅷ(f膿ng)姗�(j墨)鍣伈鐨勮伈绱�(j铆)鐢变笅寮忕⒑瀹氾細

La=Lsa+10LgQP dBA

寮忎腑: La----棰�(f膿ng)姗�(j墨)閫�(j矛n)姘ｅ彛(鎴栧嚭姘ｅ彛)鐨凙鑱茬礆(j铆),dBA;

Lsa----棰�(f膿ng)姗�(j墨)閫�(j矛n)姘ｅ彛(鎴栧嚭姘ｅ彛)鐨勬瘮A鑱� 绱�(j铆),dBA;

Q----棰�(f膿ng)閲�,绫�3/鍒�;

P----棰�(f膿ng)姗�(j墨)鍏ㄥ,姣背姘存煴銆�

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鍦�(gu贸)鍏�(n猫i)鐝�(xi脿n)宸叉湁瑷卞鍣伈鎺у埗瑷�(sh猫)鍌欏粻锛屽彲鎻愪緵鍚勯棰�(f膿ng)姗�(j墨)鐨勬秷鑱插櫔鍣�銆佹秷鑱查殧鑱茬鍙婃笡闇囧櫒銆傞ⅷ(f膿ng)姗�(j墨)鐨勫櫔鑱插晱(w猫n)椤�锛屽緸鎶€琛�(sh霉)涓婁締(l谩i)璎涳紝鍦ㄦ垜鍦�(gu贸)鍩烘湰涓婂凡鍙緱鍒版湁鏁堢殑鎺у埗锛岃€屼笖浣庡櫔鑱查ⅷ(f膿ng)姗�(j墨)涔熷凡闁�(k膩i)濮嬪嚭鐝�(xi脿n) 銆�

浣嗘槸锛屽皪(du矛)浜庢湁鐗规畩瑕佹眰鐨勯ⅷ(f膿ng)姗�(j墨)娑堣伈鍣�锛屽瑕佹眰闃叉按銆侀槻娼�銆佽€愰珮婧垨闃插〉绛�锛屽皻鏈夎ū澶氱爺绌跺伐浣滃€煎緱闁�(k膩i)灞�銆�