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【英文标准名称】:Acoustics-Laboratorymeasurementproceduresforductedsilencersandair-terminalunits-Insertionloss,flownoiseandtotalpressureloss(ISO7235:2003);GermanversionENISO7235:2003
【原文标准名称】:声学.管道消音器和空气界面装置的实验室测量步骤.插入损失、流动噪声和总压损失
【标准号】:DINENISO7235-2004
【标准状态】:作废
【国别】:德国
【发布日期】:2004-02
【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】:声级;性能试验;通风设备;流动;噪声;声学;符号;压力降;试验炉;信道;通风道工程;消声器;衰减常数;介入损耗;定义;测量;测量设备;试验;声压级;阻尼(波);测量技术;实验室;测量仪器;声学试验;管道;声强;声学测量;发动机消音器;噪声测量;测量管道
【英文主题词】:Absorption;Acousticmeasurement;Acoustictesting;Acoustics;Airducts;Airflow;Attenuationconstant;Cables;Calibration;Canals;Checkingequipment;Classes;Clay;Corrrections;Damping;Definitions;Ducts;Enginesilencers;Equipment;Externalnoise;Fans;Flow;Graphicsymbols;Handling;Insertionloss;Laboratories;Laboratorytesting;Laboratorytests;Loudspeakers;Measurement;Measurementcircuits;Measuringducts;Measuringenvironment;Measuringequipment;Measuringinstruments;Measuringobjects;Measuringtechniques;Microphonearrangement;Microphones;Mineralwool;Noise;Noiseabatement;Noise(environmental);Noisemeasurements;Performancetests;Precision;Pressuredrops;Reflection;Reverberationrooms;Silencers;Sonictesting;Sound;Soundabsorption;Soundfields;Soundintensity;Soundlevel;Soundlevels;Soundmeters;Soundpressure;Soundpressurelevel;Soundsources;Structure-bornenoise;Symbols;Testfurnaces;Testresults;Testing;Testingset-ups;Transmittances;Ventilationductwork;Ventilationequipment;Walls
【摘要】:Thisstandardspecifiesameasurementmethodforthedeterminationofinsertionloss,flownoiseandpressurelossofductedsilencers.Itappliestomainlydissipativesilencers,butnottothereactivetypesusedinautomobiles.
【中国标准分类号】:A42
【国际标准分类号】:17_140_99
【页数】:61P.;A4
【正文语种】:德语