MSA测量系统分析报告（英文版）.ppt

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1、TrainingMaterialforMEASUREMENTSYSTEMANALYSISContents:INTRODUCTIONFORMEASUREMENTSYSTEMANALYSISGENERALMETHODSILLUSTRATIONFORMEASUREMENTSYSTEMANALYSISVARIABLEGAGEANALYSISMETHOD1)THEAVERAGE-RANGEMETHOD2)THEANOVAMETHODATTRIBUTEGAGEANALYSISMETHOD1)SHORTMETHOD2)HYPOTHESIS

2、TESTANALYSIS3)SIGNALDETECTIONTHEORY4)LONGMETHODACCEPTABILITYCRITERIACONCLUSIONFOURMETHODSCOMPARISONIntroduction:BasicrequirementsbyQS-9000&TS16949BaseonQS9000&TS16949requirements,allmeasurementsystemwhichwerementionedinQualityPlanshouldbeconductedMeasurementSystemA

3、nalysis.MSARequirementIntroduction:ThecategoryofMeasurementSystemMostindustrialmeasurementsystemcanbedividedtwocategories,oneisvariablemeasurementsystem,anotherisattributemeasurementsystem.Anattributegagecannotindicatehowgoodorhowbadapartis,butonlyindicatesthatthep

4、artisacceptedorrejected.ThemostcommonoftheseisaGo/No-gogage.VariableGageAttributeGage(Go/No-goGage)Introduction:WhatisameasurementprocessOperationOutputInputGeneralProcessMeasurementAnalysisValueDecisionProcesstobeManagedMeasurementProcessMeasurement:Theassignmento

5、fanumericalvaluetomaterialthingstorepresenttherelationsamongthemwithrespecttoaparticularprocess.MeasurementProcess:Theprocessofassigningthenumericalvaluetomaterialthings.Introduction:WhatarethevariationsofmeasurementprocessIntroduction:Whatarethevariationsofmeasure

6、mentprocessMeasurement(Observed)Value=ActualValue+VarianceofTheMeasurementSystem2σobs=2σactual+σvarianceofthemeasurementsystem2Introduction:Wheredoesthevariationofmeasurementsystemcomefrom?TheFiveCharacterizationsofMeasurementSystem:1.LocationVariation:Bias;Stabili

7、ty;LinearityBiasisthedifferencebetweentheobservedaverageofmeasurementsandareferencevalue.Biasisoftenreferredtoasaccuracy.ItisasystematicerrorcomponentofthemeasurementsystemIntroduction:Wheredoesthevariationofmeasurementsystemcomefrom?TheFiveCharacterizationsofMeasu

8、rementSystem:1.LocationVariation:Bias;Stability;LinearityStability(Alias:Drift):Stabilityisthetotalvariationinthemeasurementsobtainedwithameasure