闅忕潃瀹氬埗瀹夎琛屼笟鐨勪笉鏂墿澶э紝鑹ソ鐨勫０瀛﹁璁¤秺鏉ヨ秺鍙楀埌寤虹瓚璁捐甯堝強寤虹瓚浣跨敤鑰呯殑閲嶈銆傚湪榪欏叾涓紝浣滀負寤虹瓚澹板緇勬垚閮ㄥ垎鐨勫鍐呭０瀛﹁璁″挨涓洪噸瑕併傚叾鍐呭涓昏鍖呮嫭鎴塊棿浣撳瀷鍜屽縐殑閫夋嫨銆佹渶浣蟲販鍝嶆椂闂村強鍏墮鐜囩壒鎬х殑閫夋嫨鍜岀‘瀹氥佸惛澹版潗鏂欑殑緇勫悎甯冪疆鍜岃璁￠傚綋鐨勫弽灝勯潰錛屼互鍙婂悎鐞嗗湴緇勭粐榪戞鍙嶅皠澹扮瓑銆?/p>
銆銆瀵逛簬璁稿鍒濆鑰呮潵璇達紝鎺屾彙榪欎簺鐭ヨ瘑涓嶅厤鏈夌偣鍥伴毦銆備粖澶╋紝灝忕紪涓哄ぇ瀹惰緇嗗湴瑙ｈ鍏充簬澹板澶勭悊鐨勪竴浜涗笓涓氭湳璇紝甯姪澶у鏇村鍦版帉鎻″鍐呭０瀛﹁璁＄殑鐭ヨ瘑銆?/p>
銆銆Decibel鍒嗚礉
銆銆鍒嗚礉鏄寚涓璐濆皵鐨勫崄鍒嗕箣涓錛岄氬父琚敤浜庤〃杈鵑煶閲忋傚垎璐濆茍涓嶈兘琛ㄨ揪鎵鏈夌殑浜嬫儏錛屽畠鍙槸涓や釜鑳介噺姘村鉤鐨勬瘮鐜囥傜敱浜庢垜浠潬鑰蟲湹鎰熺煡闊抽噺錛岃繖浜涢伒寰鏁版洸綰跨殑姣斿兼寜鍒嗚礉鏉ヨ〃杈句嬌璁稿浜嬫儏鍙樺緱綆鍗曞浜嗐?/p>
銆銆浜鴻沖湪姝ｅ父鎯呭喌涓嬭兘鎰熻鍑哄彉鍖栫殑鏈灝忛煶閲忓崟浣嶆槸1鍒嗚礉;鎵０鍣ㄥ姛鐜囧鍔犱竴鍊嶏紝鍏剁粨鏋滄槸浼氭湁3鍒嗚礉鐨勬槑鏄懼鍔狅紝闊抽噺澧炲姞涓鍊嶅氨鏄?鍒嗚礉鐨勫彉鍖?濡傛灉瑕佹妸闊抽噺澧炲姞涓鍊嶇殑璇濓紝鎴戜滑闇瑕佹妸鏀懼ぇ鍣ㄧ殑鍔熺巼澧炲姞鍒板師鏉ョ殑鍥涘嶃?/p>
銆銆Frequency棰戠巼
銆銆澹扮殑婧愬ご鏄尟鍔紝鎸姩灝辨湁棰戠巼(絎﹀彿f),鍗蟲瘡縐掔鎸姩鐨勬鏁幫紝鍗曚綅鏄但鍏?Hz)浜鴻充笉鏄墍鏈夌殑棰戠巼鐨勫０闊抽兘鑳藉惉鐨勫埌錛屽彧鏈夋尟鍔ㄩ鐜囦負20Hz(涓璇?6Hz)~20000 Hz鐨勫０闊籌紝浜鴻蟲墠鑳芥湁澹拌銆?/p>
銆銆20Hz浠ヤ笅涓烘澹幫紝20000Hz浠ヤ笂涓鴻秴澹幫紝浣庝簬20Hz鍜岄珮浜?0000Hz鐨勫０闊充漢鑰充笉浼氭湁澹扮殑鎰熻錛屼漢鑰蟲渶鏁忔劅鐨勯鐜囧湪100~3150Hz銆傚湪寤虹瓚澹板涓紝涓鑸妸200~300Hz鎴栦互涓嬬殑澹伴煶縐頒負浣庨澹幫紝500~1000Hz鐨勫０縐頒負涓澹幫紝2000~4000Hz鎴栦互涓婄殑澹扮О涓洪珮棰戝０銆?/p>
銆銆Absorption鍚擱煶
銆銆鍦ㄥ０瀛︽柟闈紝鍚擱煶鎸囧０闊蟲病鏈夊弽灝勶紝澹版嘗鍦ㄩ亣鍒拌蔣鏉愭枡鏃惰鍚告敹浜嗐傚悇縐嶆潗鏂欑殑鍚告敹鑳藉姏鏍規嵁鍚告敹緋繪暟榪涜鍒嗙駭錛岃繖鏄牴鎹０闊蟲挒鍑誨埌琛ㄩ潰鏃惰鏉愭枡鍚告敹鐨勭浉瀵瑰０鑳介噺鏉ョ‘瀹氥?/p>
銆銆Absorption Coefficient鍚擱煶緋繪暟
銆銆鍚擱煶緋繪暟嫻嬮噺鐨勬槸褰撳０闊蟲挒鍑誨埌鐗╀綋琛ㄩ潰鏃惰鏉愭枡鍚告敹鐨勭浉瀵瑰０鑳介噺錛屽畠閫氬父鏄竴涓粠0鍒?鐨勫鹼紝瀹冧箻浠ョ墿浣撹〃闈㈢Н鎵寰楃殑鏁板氨鏄鐗╀綋琛ㄩ潰鍚告敹鐨勫０闊崇殑鐧懼垎姣斻傝繖涓櫨鍒嗘瘮鐨勫崟浣嶅氨鏄疭abins錛岃搗婧愪簬鍝堜經鏁欐巿錛屽０瀛﹀Wallace Sabine鐨勫悕瀛椼?/p>
銆銆鍚告敹緋繪暟涓?浠ｈ〃鐫澹伴煶鎾炲嚮鍒扮墿浣撹〃闈㈠悗琚畬鍏ㄥ惛鏀朵簡錛屾病鏈変換浣曞弽灝勶紝濡傛灉鍚告敹緋繪暟涓?鍒欎唬琛ㄧ潃澹伴煶琚畬鍏ㄥ弽灝勪簡錛屾病鏈変換浣曞惛鏀躲傚綋鐒訛紝緋繪暟涓?鐨勭幇璞℃槑鏄炬槸涓嶅彲鑳界殑錛岀郴鏁頒負1鐨勬儏鍐典篃寰堝皯鍑虹幇銆傚彟澶栵紝鐢變簬涓嶅悓鐨勬潗鏂欏湪涓嶅悓鐨勯鐜囦笅鏈変笉鍚岀殑鍚告敹鐗瑰緛錛屾墍浠ュ惛鏀剁郴鏁頒細闅忕潃棰戠巼鐨勫彉鍖栬屾敼鍙樸傚０瀛﹀浠父閲囩敤鍚告敹緋繪暟鏉ュ垽鏂鍐呯殑RT60鍜屽洖鍝嶆椂闂達紝浜嬪疄涓婅澶氬緩絳戞潗鏂欓兘琚祴閲忎簡澹板緋繪暟錛屼互澶囦嬌鐢ㄥ弬鑰冦?/p>
