【英文标准名称】:Acoustics-Determinationofsoundpowerlevelsofnoisesourcesusingsoundpressure-Engineeringmethodinanessentialfreefieldoverareflectingplane(ISO3744:1994);GermanversionENISO3744:1995
【原文标准名称】:声学.使用声压的噪声源声音强度级的测定.在一个基本空荡的声场中通过反射平面的工程测量方法(ISO3744:1994);德文版本ENISO3744:1995
【标准号】:DINENISO3744-1995
【标准状态】:作废
【国别】:德国
【发布日期】:1995-11
【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】:噪声;试验;规范(批准);声学试验;测定;精密度;数学计算;声学;声级;包络面法;计算方法;噪声测量;声功率;方法;反射的;声学测量;测量仪器;噪声源;声压;试验设备;试验条件;定义
【英文主题词】:Absorption;Acousticmeasurement;Acoustictesting;Acoustics;Calibration;Clay;Definitions;Determination;Earprotectors;Envelopingsurfacemethods;Environment;Externalnoise;Fixings;Installations;Mathematicalcalculations;Measurement;Measurementduration;Measuringinstruments;Measuringsurfaces;Measuringtechniques;Methods;Methodsofcalculation;Microphones;Noise;Noise(environmental);Noisemeasurements;Noisesources;Operation;Precision;Reflective;Rooms;Soundabsorption;Soundfields;Soundintensity;Soundlevel;Soundlevels;Soundpower;Soundpressure;Soundsources;Specification(approval);Standarddeviation;Testequipment;Testing;Testingconditions
【摘要】:Thedocumentspecifiesamethodformeasuringthesoundpressurelevelsonameasurementsurfaceenvelopingthesourceandforcalculatingthesoundpowerlevelproducedbythesource.Itgivesrequirementsforthetestenvironment,theinstrumentationandthemicrophonearray,leadingtoresultswhichhaveagrade2accuracy.Thefollowingtermsaredefined:soundpressure,soundpressurelevel,time-averagedsoundpressurelevel,single-eventsoundpressurelevel,measurementtimeinterval,measurementsurface,surfacesoundpressurelevel,soundpower,soundpowerlevel,freefield,freefieldoverareflectingplane,frequencyrangeofinterest,referencebox,characteristicsourcedimension,measurementdistance,measurementradius,backgroundnoise,backgroundnoisecorrection,environmentalcorrection,impulsivenoiseindex,directivityindex.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_01
【页数】:28P.;A4
【正文语种】:德语