数型RR之讲解与达用表.pptVIP

AttributeMeasurementSystems計數型測量系統

AttributeTerminology計數術語AttributeData:計數型數據☆Qualitative(go/nogo)datathatcanbecountedforrecordingandanalysis可用作記錄或分析的定性數據(通常為合格/不合格)AttributeMeasurementSystem(AMS):計數型測量系統☆Ameasurementsystemthatcomparesaproducttoastandardandacceptstheproductifinmeetsthestandard.將每一產品與標準對比,如果符合標準的要求則接受☆Canbeinspectedbyaninspectionorbyusingago/nogogauge可由檢驗員或合格/不合格量規來實施檢查Screen:篩選☆100%inspectionusinganAMS用計數測量系統百分百評價產品

AttributeTerminology計數術語ScreenEffectiveness:篩選效率☆TheabilityoftheAMStodiscriminategoodfrombadAMS區分合格與不合格產品的能力CustomerBias:客戶偏好☆Screeningcriteriaistootight:Goodproductisbeingrejected篩選標準太嚴格:合格產品被拒收ProducerBias:生產者偏好☆Screeningcriteriaistooloose:Defectiveproductisbeingaccepted篩選標準太寬鬆:不合格產品被接收

ThePurposeofAttributeRR

計數值RR的目的Tounderstandifworkersacrossallshifts,machinesandlinesusethesamecriteriatodetermine“pass”or“fail”確定各班次、各機器、各流水線的檢驗員是否用同一標準區分合格與不合格.Toquantifytheabilityofinspectorsorgaugestorepeattheirinspectionresultsandconclusions量化測量者或測量儀器是否能正確重复檢驗結果的能力

ThePurposeofAttributeRR

計數值RR的目的確定檢驗員/量儀符合標準的程度,包括:Thefrequencywhereinspectorsshiptrulydefectiveproduct(ProducerBias)檢驗員接受不合格產品的概率ThefrequencywhereinspectorsdonotshiptrulyacceptableTounderstandthelevelofconformancetoastandard01檢驗員拒收合格品產品的概率Product(CustomerBias)02

ThePurposeofAttributeRR

計數值RR的目的Identifythefollowing:識別以下各項☆Trainingneed(Individual(s)orforall)培訓需求(個別或全部檢驗員)☆Thelackofdocumentedproceduresorcontrolplans缺少程序或控制計劃☆Whetherstandardsareclearlydefined標準沒有清晰定明☆Adjustmentorcorrelationofgauges量儀需要調整或進行相關對比

PointsforAttributeMeasurementSystems

計數測量系統應注意事項Attributedataisnormallygener