【英文标准名称】:Acoustics-Determinationofsoundpowerlevelsofnoisesourcesusingsoundpressure-Precisionmethodsforanechoicandhemi-anechoicrooms(ISO3745:2003);EnglishversionofDINENISO3745:2009-11
【原文标准名称】:声学,噪声源声功率级的测定.消声室和半声室精密测定(ISO3745:2003),德文版本ENISO3745:2009
【标准号】:DINENISO3745-2009
【标准状态】:作废
【国别】:德国
【发布日期】:2009-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Acousticmeasurement;Acoustics;Closedtestrooms;Definitions;Envelopingsurfacemethods;Laboratorytesting;Laboratorytests;Mathematicalcalculations;Measurement;Measuringtechniques;Noise(environmental);Noisemeasurements;Noisesources;Reflection;Reverberationrooms;Soundenergy;Soundintensity;Soundlevel;Soundlevels;Soundpower;Soundpressure;Soundpressurelevel;Soundsources
【摘要】:ThisInternationalStandardspecifiesmethodsformeasuringthesoundpressurelevelsonameasurementsurfaceenvelopinganoisesourceinanechoicandhemi-anechoicrooms,inordertodeterminethesoundpowerlevelorsoundenergylevelproducedbythenoisesource.Itgivesrequirementsforthetestenvironmentandinstrumentation,aswellastechniquesforobtainingthesurfacesoundpressurelevelfromwhichthesoundpowerlevelorsoundenergyleveliscalculated,leadingtoresultswhichhaveagrade1accuracy.ThemethodsspecifiedinthisInternationalStandardaresuitableformeasurementsofalltypesofnoise.Thenoisesourcecanbeadevice,machine,componentorsub-assembly.Themaximumsizeofthesourceundertestdependsontheradiusofthehypotheticalsphere(orhemisphere)usedastheenvelopingmeasurementsurface.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_01
【页数】:54P.;A4
【正文语种】:英语