【英文标准名称】:StandardGuideforEvaluatingDataAcquisitionSystemsUsedinCyclicFatigueandFractureMechanicsTesting
【原文标准名称】:评价用于周期疲劳和断裂力学试验的标准指南
【标准号】:ASTME1942-1998(2004)
【标准状态】:现行
【国别】:
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E08.03
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:信号状况;信息率;数据偏移;断裂力学;抽样率;带宽;相位移;过滤器;量化;噪声;数据采集;阶跃响应;漂移;疲劳
【英文主题词】:bandwidth;dataacquisition;datarate;dataskew,drift;fatigue;filter;fracturemechanics;noise;phaseshift;quantization;samplerate;signalconditioning;stepresponse
【摘要】:1.1Thisguidecovershowtounderstandandminimizetheerrorsassociatedwithdataacquisitioninfatigueandfracturemechanicstestingequipment.Thisguideisnotintendedtobeusedinsteadofcertifiedtraceablecalibrationorverificationofdataacquisitionsystemswhensuchcertificationisrequired.Itdoesnotcoverstaticloadverification,forwhichtheuserisreferredtothecurrentrevisionofPracticesE4,orstaticextensometerverification,forwhichtheuserisreferredtothecurrentrevisionofPracticeE83.TheuserisalsoreferredtoPracticeE467.1.2Theoutputofthefatigueandfracturemechanicsdataacquisitionsystemsdescribedinthisguideisessentiallyastreamofdigitaldata.Suchdigitaldatamaybeconsideredtobedividedintotwotypes-BasicData,whichareasequenceofdigitalsamplesofanequivalentanalogwaveformrepresentingtheoutputoftransducersconnectedtothespecimenundertest,andDerivedData,whicharedigitalvaluesobtainedfromtheBasicDatabyapplicationofappropriatecomputationalalgorithms.ThepurposeofthisguideistoprovidemethodsthatgiveconfidencethatsuchBasicandDerivedDatadescribethepropertiesofthematerialadequately.Itdoesthisbysettingminimumormaximumtargetsforkeysystemparameters,suggestinghowtomeasuretheseparametersiftheiractualvaluesarenotknown.
【中国标准分类号】:H23
【国际标准分类号】:19_060
【页数】:12P.;A4
【正文语种】: