【英文标准名称】:Acoustics-Determinationofsoundpowerlevelsofnoisesourcesusingsoundpressure-Precisionmethodsforanechoicandhemi-anechoicrooms
【原文标准名称】:声学.用声压法测定噪声源声功率级.消声室和半消声室精密法
【标准号】:BSENISO3745-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-12-18
【实施或试行日期】:2003-12-18
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;包络面法;声学;声压;声源;数学计算;封闭式试验室;混响室;声功率;声学测量;声压级;测量技术;测量;反射;噪声源;噪声(环境的);声级;声音能;实验室试验;噪声测量
【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】:56P;A4
【正文语种】:英语