EN 61094-3-1995 测量传声器.第3部分:用互易技术对实验室标准传声器进行校准的基本方法
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【英文标准名称】:Measurementmicrophones-Part3:Primarymethodforfree-fieldcalibrationoflaboratorystandardmicrophonesbythereciprocitytechnique(IEC61094-3:1995);GermanversionEN61094-3:1995
【原文标准名称】:测量传声器.第3部分:用互易技术对实验室标准传声器进行校准的基本方法
【标准号】:EN61094-3-1995
【标准状态】:现行
【国别】:
【发布日期】:1996-05
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:测量扩音器;试验;电声学;自由场;声压;电声器件;传声器;实验室装备;效应;测量;测量技术;实验室器具;环境条件;校正;测量仪器;实验室;声学
【英文主题词】:Acoustics;Acoustoelectricdevices;Calibration;Condensermicrophones;Effects;Electricalengineering;Electroacoustics;Environmentalcondition;Freefields;Laboratories;Laboratoryapparatus;Laboratoryfurniture;Measurement;Measurementmicrophones;Measuringinstruments;Measuringtechniques;Microphones;Soundpressure;Testing;Transfercoefficient
【摘要】:
【中国标准分类号】:M72
【国际标准分类号】:17_140_50;33_160_50
【页数】:14P.;A4
【正文语种】:英语
【英文标准名称】:Acoustics-Measurementoftheinsitusoundattenuationofaremovablescreen
【原文标准名称】:声学可移动声屏障声衰减的现场测量
【标准号】:ISO11821-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-04
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC43
【标准类型】:()
【标准水平】:()
【中文主题词】:噪声降低;定义;声学测量;试验;声学;遮板(隔墙);就地;现场试验;噪声;噪声抑制
【英文主题词】:Acousticmeasurement;Acousticscreen;Acoustics;Definitions;Fieldtesting;Insitu;Measuringtechniques;Mobile;Noise;Noiseabatement;Noisecontrol(acoustic);Noisereduction;Relocatablepartitions;Screens(partitions);Sonictesting;Soundattenuation;Soundcontrolmeans;Soundpressurelevel;Transportablestructures
【摘要】:ThisInternationalStandardspecifiesmethodsforevaluatingtheinsitusoundattenuationperformanceofaremovablescreen,eitherindoorsoroutdoors.Thisengineeringgrademethodisbasedonaninsertiontossmeasurementthatcanbecarriedouteitherwithshieldingoftheactualsoundsource(s)orusinganartificialsoundsource.Thesoundattenuationperformanceachievedbysuchascreen,asevaluatedbythepresentInternationalStandard,dependson:—diffractionaroundtheedgesofthescreen;—transmissionthroughthecomponentsofthescreen;—absorptionofthepanelsofthescreen,aswellasinitssurroundings;—theroominwhichthescreenstandsifindoors.Whenaspecificworkstationistobeshielded,theinsitusoundattenuationvaluedescribestheeffectofthescreen.However,whenacompleteareaistobeshielded,theperformanceofthescreenwillvarydependingonthepositionsusedformeasurement.Therefore,itisrecommendedthatthemaximumandminimumvaluesofsoundattenuationaregiven.Thesoundattenuationperformanceisdeterminedintermsofinsertionloss.Whenassessingtheperformanceofascreenlocatedindoors,theroomgeometryandreflectionsfromwalls,ceilingsandroomfittingswillinfluencetheperformance.Asaconsequence,thecomparisonofscreenperformancecanonlybemadeifthetestconditionsareidentical.ThisInternationalStandardisapplicabletoscreenswithheightandlengthgreaterthan1,5m.However,itmayalsobeusedforsmallerscreensprovidedthattheinterestedpartiescometoanagreementonthis.Asenvironmentalconditionscanaffectthemeasurementsoutdoors,itisrecommendedthatmeasurementsshouldberestrictedtowithin25mofthescreen.However,measurementsmayalsocoveragreaterdistanceprovidedthattheinterestedpartiescometoanagreementonthis.Differencescanoccurbetweeninsitutestresults.Therefore,comparisonoftheperformanceofdifferentscreenscanbemadeonlyonthebasisofdatabasedonthesamemeasurementmethodperformedatthesamelocation.ThisInternationalStandardappliestoacompletescreenonlyandnottoindividualcomponentsfromwhichitismade.Soundinsulationandsoundabsorptionforscreencomponents(suchaspanelelements,doors,windows)shouldbemeasuredaccordingtootherrelevantstandards.ThisInternationalStandardisnotapplicabletoopenplanofficesscreensnortooutdoorbarriersdealingwithcommunitynoise.Itisalsonotintendedforqualificationpurposes.
【中国标准分类号】:P13
【国际标准分类号】:17_140_99
【页数】:10P.;A4
【正文语种】:英语
MIL-HDBK-143 (NOTICE 1), MILITARY HANDBOOK: GLOSSARY OF GUIDED MISSILE TERMINOLOGY (01 JUN 1988).