用途：43AA:电话机或耳机音响测定用IEC318人耳模拟器标准:IEC60318"ElectroacousticsSimulatorsofHumanHead：ear-part1:Earsimulatorforcalibrationofsupraauralearphone",1998-07ITU-T43AB:助听机测定用IEC126ANSIS3.7-1973规则标准:IEC60711Standard"Electroacoustics-SimulatorsofHumanHeadEar-Part1:EarSimulatorforCalibrationofSupraAuralEarphones"1998-0743AC:管状听话筒的音响测定.43AD:发声器和高音量喇叭的音响测定用43AF电话机和耳机音响测定用符合标准ANSIS3.71995AmericanNationalStandardforTestingEarphones.特性：1.RA0039IEC318人耳模拟器频率范围:100Hz-4KHz尺寸:高:19.8mm直径:60mm重量:137g测量标准：ITU-TrecommendationP.57(08/96)"SeriesP:Telephonetran***issionquality,Objectmeasuringapparatus:Artificialear2.RA0045IEC711人耳模拟器有效音量:1.26&plu***n;0.03㎤at500Hz共振频率:13.5&plu***n;1.5KHz尺寸:高:36.5mm直径:23.8mm重量:71g测量标准：ITU-TrecommendationP.57(08/96)"SerieP:Telephonetran***issionquality,Objectmeasuringapparatus:Artificialear▶标准构成品:-满足IEC318标准的人耳模拟器RA0039(43AA,43AD用)-安装板(43AA,43AD用)-满足IEC126标准的2㎤CouplerRA0038(43AB用)-满足IEC711标准的人耳模拟器RA0045(43AC用)-StudsforMountingandin-eartesting(43AB用)-1/2"压力型麦克风40AG(公用)-1/4"预放26AC&Test-JigRA0052(公用)-SnapCouplingGR0332andGR0036(43AD用))