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BS EN 50332-1-2000 音响系统设备.与便携声学设备相连的耳机和头戴送受话器.最大声压水平测量方法学和限制.成套设备通用方法

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【英文标准名称】:Soundsystemequipment-Headphonesandearphonesassociatedwithportableaudioequipment-Maximumsoundpressurelevelmeasurementmethodologyandlimitconsiderations-Generalmethodfor"onepackageequipment"
【原文标准名称】:音响系统设备.与便携声学设备相连的耳机和头戴送受话器.最大声压水平测量方法学和限制.成套设备通用方法
【标准号】:BSEN50332-1-2000
【标准状态】:现行
【国别】:英国
【发布日期】:2000-11-15
【实施或试行日期】:2000-11-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:声强;声学测量;声学设备;头戴送受话器;便携的;音频系统;耳机;安全措施;音频设备;声学
【英文主题词】:Acousticequipment;Acoustics;Acoustoelectricdevices;Audioappliances;Definition;Definitions;Earphones;Electricappliances;Electricalengineering;Electroacoustics;Entertainmentelectronics;Headphones;High-fidelity;Instruments;Measuredvalue;Measurement;Measurementset-up;Measuringfrequencies;Measuringtechniques;Performance;Portable;Soundintensity;Soundpressurelevel;Testing;Transmissiondevices
【摘要】:Thescopeofthisstandardistosetupasuitablemeasuringmethodologyallowingaccuratemeasurementofthemaximumsoundpressurelevelproducedbyconsumer'sheadphonesandearphoneswhenassociatedwithportableaudioequipment.NOTEThisstandarddoesnotapplytoacousticallyopenoracousticallyclosedheadphonesassociatedwithmainsoperatedHi-Fihomeequipementnordoesitapplytoheadphonesformedicalpurposes(hardofhearing,etc.)ortoheadphonesorsimilarpartsbeingpartofactivehearingprotectionsystems.Wirelessheadphonesareneitherincluded,conditionsforthemmaybederivedaccordingly.Otherrequirementsforsafety,e.g.fornoiseprotectioninofficesandindustryarenotaffectedbythisstandard.Requestedfeatures:-Themethodshouldbereproducibleandeasilyapplicabletoeverytypeandshapeofheadphoneorearphoneavailableonthemarket(goodmechanicaladaptability).-Assafetyandhealthareaddressed,themethodshouldfaithfullyreflectthepressureleveleffectiveattheuser'shearing(goodcorrelationwithsubjectivetests).-Andfinally,itisdesirabletoestablishaglobalmeasuringprocedure,includingeachcomponentinthechain:Portableset+specifictestsignal+associatedheadphoneorearphone.Thestandardissplitintotwoparts:-Part1dealswithsetsprovidedasapackageequipmentbythemanufacturer.Inthiscase,"Portableaudioequipment"meanstheassociationofoneset(compactcassetteplayer,CDplayer,FMradioreceiver,withitsheadphoneorearphone.-Part2(underconsiderationatpresenttime)givesguidelinestoassociateportableaudiosets(compactcassetteplayer,CDplayer,FMradioreceiver,...)withheadphonesorearphonescomingfromadifferentmanufacturer.
【中国标准分类号】:L31
【国际标准分类号】:17_140_50;33_160_50
【页数】:12P.;A4
【正文语种】:英语


【英文标准名称】:Rotatingelectricalmachines;part2:methodsfordetermininglossesandefficiencyofrotatingelectricalmachineryfromtests(excludingmachinesfortractionvehicules)
【原文标准名称】:旋转电机第2部分:旋转电机损耗和效率的试验测定方法(不包括牵引车辆用电机)
【标准号】:IEC60034-2-1972
【标准状态】:作废
【国别】:国际
【发布日期】:1972
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC2G
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;效率;试验;旋转电机
【英文主题词】:Air;Calorimetric;Coastingstoptests;Coolants;Coolers;Cooling;Definition;Definitions;Determination;Direct-currentmachines;Direct-currentmotors;Dissipationfactor;Effectiveness;Efficiency;Efficiencymeasurement;Electricmachines;Electricmotors;Electricalengineering;Electricalpropertiesandphenomena;Heatmeasurement;Idlemode;Inductionmachines;Instruments;Lossmeasurement;Losses;Measurement;Measuringbridges;Measuringinstruments;Measuringtechniques;Mechanicalback-to-backtest;Momentofinertia;Polyphasemotors;Powermeasurement(electric);Ratingtests;Rotating;Rotatingelectricmachines;Rotatingelectricalmachinery;Safetyengineering;Specification(approval);Straypower;Synchronousmachines;Temperature;Testing;Tolerances(measurement);Ventilation;Water
【摘要】:Appliestod.c.machinesandtoa.c.synchronousandinductionmachinesofallsizeswithinthescopeofIECPublication34-1.Constitutespart2ofaseriesofpublicationsdealingwithrotatingelectricalmachinery.Supersedesthesecondeditionpublis
【中国标准分类号】:K20
【国际标准分类号】:29_160_01
【页数】:55P.;A4
【正文语种】:英语


【英文标准名称】:GLOSSARYOFINSURANCETERMS.
【原文标准名称】:保险术语集
【标准号】:NFK40-001-1973
【标准状态】:作废
【国别】:法国
【发布日期】:1970-12
【实施或试行日期】:1973-10-12
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:A11
【国际标准分类号】:03_060;01_040_03
【页数】:33P.;A4
【正文语种】:其他