MSAMeasurementSystens(英文版)

16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide1,Printed2/4/02MeasurementSystemsAnalysisMeasurementSystemsAnalysis16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide2,Printed2/4/02MeasurementSystemsAnalysisDon’tLetThisHappenToYOU!16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide3,Printed2/4/02MeasurementSystemsAnalysisVariationThinkofMeasurementasaProcess16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide4,Printed2/4/02MeasurementSystemsAnalysisDefinitionMeasurementTheassignmentofnumberstomaterialthingstorepresenttherelationshipsamongthemwithrespecttoparticularproperties.C.Eisenhart(1963)16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide5,Printed2/4/02MeasurementSystemsAnalysisMeasurementSystemsAnalysis•BasicConceptsofMeasurementSystemsAProcess•StatisticsandtheAnalysisofMeasurementSystems•ConductingaMeasurementSystemsAnalysis•ISO-TC69istheStatisticsGroup•Ensureshigh‘DataQuality’(ThinkofBias)16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide6,Printed2/4/02MeasurementSystemsAnalysisCourseFocus&FlowMeasurementasaProcess•MechanicalAspects(vsDestructive)PiecepartContinuous(fabric)•FeaturesofaMeasurementSystem•MethodsofAnalysis•GaugeR&RStudies•SpecialGaugingSituationsGo/No-GoDestructiveTests16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide7,Printed2/4/02MeasurementSystemsAnalysisPlaceTimelineHere16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide8,Printed2/4/02MeasurementSystemsAnalysisTheTarget&GoalPrototypePre-LaunchProductionUSLLSLContinuousImprovement16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide9,Printed2/4/02MeasurementSystemsAnalysisKeyWords•DiscriminationAbilitytotellthingsapart•Bias[perAIAG](Accuracy)•Repeatability[perAIAG](Precision)•Reproducibility•Linearity•Stability16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide10,Printed2/4/02MeasurementSystemsAnalysisMeasurementasaProcessBasicConcepts•ComponentsoftheMeasurementSystem•RequirementsofaMeasurementSystem•FactorsAffectingaMeasurementSystem•CharacteristicsofaMeasurementSystemFeatures(Qualities)ofaMeasurementNumber•Units(Scale)•Accuracy•Precision(ConsistencyorRepeatability)•Resolution(Reproducibility)16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide11,Printed2/4/02MeasurementSystemsAnalysisMeasurementRelatedSystemsTypicalExperienceswithMeasurementSystems16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide12,Printed2/4/02MeasurementSystemsAnalysisBasicConcepts•EveryProcessProducesa“Product”•EveryProductPossessesQualities(Features)•EveryQualityFeatureCanBeMeasured•TotalVariation=ProductVariation+MeasurementVariation•SomeVariationInherentinSystemDesign•SomeVariationisDuetoaFaultyPerformanceoftheSystem(s)16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide13,Printed2/4/02MeasurementSystemsAnalysisTheMeasurementProcessWhatisthe‘Product’oftheMeasurementProcess?WhataretheFeaturesorQualitiesofthisProduct?HowCanWeMeasureThoseFeatures?16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide14,Printed2/4/02MeasurementSystemsAnalysisMeasurementSystemsComponents•MaterialtobeInspectedPieceContinuous•CharacteristictobeMeasured•CollectingandPreparingSpecimens•TypeandScaleofMeasurement•InstrumentorTestSet•InspectororTechnicianAIAGcallsthese‘Appraiser’•ConditionsofUse16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide15,Printed2/4/02MeasurementSystemsAnalysisWhereDoesItStart?DuringtheDesign(APQP)Stage:Theengineerresponsiblefordetermininginspectionsandtests,andforspecifyingappropriateequipmentshouldbewellversedinmeasurementsystems.TheCalibrationfolksshouldbepartoftheprocessasapartofacross-functionalteam.Variabilitychoseninstrumentmustbesmallwhencomparedwith:ProcessVariabilitySpecificationLimits16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide16,Printed2/4/02MeasurementSystemsAnalysisTypicalProgressionDetermine‘Critical’CharacteristicDetermineWhatEquipmentisAlreadyAvailableDetermineRequiredResolutionConsiderationoftheEntireMeasurementSystemfortheCharacteristic(Variables)Cross-FunctionalProductEngineerProductEngineerMetrologyHowwillthedatabeused?16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide17,Printed2/4/02MeasurementSystemsAnalysisMeasurementSystemsVariablesMeasurementInstrumentEnvironmentMaterialInspectorMethodsSamplePreparationSampleCollectionParallaxReproducibilityTrainingPracticeErgonomicsTestMethodWorkmanshipSamplesStandardsDiscriminationRepeatabilityBiasCalibrationLinearityVibrationLightingTemperatureHumidityThesearesomeofthevariablesinameasurementsystem.Whatotherscanyouthinkof?FixtureEyesightAirPressureAirMovementFatigue16949.comCaymanBusinessSystems980820RevisionJ(513)777-339416949.comSlide18,Printed2/4/02MeasurementSystemsAnalysisDeterminingWhatToMeasure•VoiceoftheCustomerYouMustConverttoTechnica