Designation:E1106−12StandardTestMethodforPrimaryCalibrationofAcousticEmissionSensors1ThisstandardisissuedunderthefixeddesignationE1106;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoverstherequirementsfortheabso-lutecalibrationofacousticemission(AE)sensors.Thecali-brationyieldsthefrequencyresponseofatransducertowaves,atasurface,ofthetypenormallyencounteredinacousticemissionwork.Thetransducervoltageresponseisdeterminedatdiscretefrequencyintervalsofapproximately10kHzupto1MHz.Theinputisagivenwell-establisheddynamicdis-placementnormaltothemountingsurface.Theunitsofthecalibrationareoutputvoltageperunitmechanicalinput(displacement,velocity,oracceleration).1.2Units—ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E114PracticeforUltrasonicPulse-EchoStraight-BeamContactTestingE494PracticeforMeasuringUltrasonicVelocityinMateri-alsE650GuideforMountingPiezoelectricAcousticEmissionSensorsE1316TerminologyforNondestructiveExaminations3.Terminology3.1RefertoTerminologyE1316forterminologyusedinthistestmethod.4.SignificanceandUse4.1TransferStandards—OnepurposeofthistestmethodisforthedirectcalibrationofdisplacementtransducersforuseassecondarystandardsforthecalibrationofAEsensorsforuseinnondestructiveevaluation.Forthispurpose,thetransferstan-dardshouldbehighfidelityandverywellbehavedandunderstood.Ifthiscanbeestablished,thestatedaccuracyshouldapplyoverthefullfrequencyrangeupto1MHz.NOTE1—Thestatedaccuracyappliesonlyifthet...
