作者:标准资料网 时间:2024-05-02 14:22:15   浏览:9229   来源:标准资料网

【英文标准名称】:StandardTestMethodforPrimaryCalibrationofAcousticEmissionSensors
【原文标准名称】:声发射传感器一次校准的标准试验方法
【标准号】:ASTME1106-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:E07.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:声学设备;声学;校准;发射;无损检验;传感器;试验设备;测试
【英文主题词】:absolutecalibration;acousticemissionsensor;breakingcapillary;capacitivetransducer;nondestructivetesting;surfacewave;transferstandard
【摘要】:TransferStandards8212;OnepurposeofthistestmethodisforthedirectcalibrationofdisplacementtransducersforuseassecondarystandardsforthecalibrationofAEsensorsforuseinnondestructiveevaluation.Forthispurpose,thetransferstandardshouldbehighfidelityandverywellbehavedandunderstood.Ifthiscanbeestablished,thestatedaccuracyshouldapplyoverthefullfrequencyrangeupto1MHz.Note18212;Thestatedaccuracyappliesonlyifthetransferstandardreturnstoquiescence,followingthetransientinput,beforeanywavereflectedfromtheboundaryofthecalibrationblockreturnstothetransferstandard(8764;100x03BC;s).Forlowfrequencieswithperiodsontheorderofthetimewindow,thisconditionisproblematicaltoprove.ApplicationsSensors8212;ThistestmethodmayalsobeusedforthecalibrationofAEsensorsforuseinnondestructiveevaluation.Someofthesesensorsarelesswellbehavedthandevicessuitableforatransferstandard.Thestatedaccuracyforsuchdevicesappliesintherangeof100kHzto1MHzandwithlessaccuracybelow100kHz.1.1Thistestmethodcoverstherequirementsfortheabsolutecalibrationofacousticemission(AE)sensors.Thecalibrationyieldsthefrequencyresponseofatransducertowaves,atasurface,ofthetypenormallyencounteredinacousticemissionwork.Thetransducervoltageresponseisdeterminedatdiscretefrequencyintervalsofapproximately10kHzupto1MHz.Theinputisagivenwell-establisheddynamicdisplacementnormaltothemountingsurface.Theunitsofthecalibrationareoutputvoltageperunitmechanicalinput(displacement,velocity,oracceleration).Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N65
【国际标准分类号】:17_140_01
【页数】:11P.;A4
【正文语种】: