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【英文标准名称】:Acoustics-Determinationofsoundpowerlevelsofnoisesourcesusingsoundpressure-Precisionmethodsforreverberationrooms
【原文标准名称】:声学.利用声压测定噪声源的声级.混响室精确法
【标准号】:ANSIS12.51Part1-2002
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;噪声测量;混响室;机器;测量;声学试验;声学;试验;响度;声源;声学测量;混响室法;测量仪器;声强;声级;噪声(环境的);测定;规范(验收);音量;混响;数学计算;测量技术;发出的空气噪声
【英文主题词】:Acousticmeasurement;Acoustictesting;Acoustics;Airbornenoiseemitted;Definition;Definitions;Determination;Loudnesslevel;Machines;Mathematicalcalculations;Measurement;Measuringinstruments;Measuringtechniques;Noise(environmental);Noisemeasurements;Reverberation;Reverberationroommethod;Reverberationrooms;Soundintensity;Soundlevel;Soundlevels;Soundsources;Specification(approval);Testing;Tests;Volume(sound)
【摘要】:Specifiesadirectmethodandacomparisonmethodfordeterminingthesoundpowerlevelthatwouldbeproducedbyasourceoperatinginanenvironmentatstandardmeteorologicalconditionscorrespondingtoacharacteristicimpedanceofpc=400Ns/m3(wherepisthedensityofairandcisthespeedofsound).Itspecifiestestroomrequirements,sourcelocationandgeneralrulesforoperatingconditions,instrumentationandtechniquesforobtaininganestimateofmean-squaresoundpressurelevelsfromwhichthesoundpowerlevelsofthesourceinoctaveorone-third-octavebandsarecalculatedwithagrade1accuracy.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_01
【页数】:
【正文语种】:英语